← back to blog

what is a mobile proxy and why does it matter?

guides proxies mobile-proxies tutorials

a mobile proxy routes your internet traffic through a real mobile device with a real SIM card. instead of getting a datacenter IP that websites flag in seconds, you get an IP address assigned by a mobile carrier, the same kind every smartphone on Singtel, StarHub, or M1 sits behind.

that single difference, carrier IP vs server IP, changes how platforms treat you at a structural level. this guide explains why, and covers everything you need to know before buying, building, or troubleshooting a mobile proxy setup.

use the headings to skip around. if you already know what a mobile proxy is and want to jump straight to setup, the how to set one up section has config blocks for browsers, curl, Python, and Node. if you want to understand whether mobile proxies are actually worth the price premium, the cost and pricing and how to choose a provider sections cover that honestly.

what a mobile proxy actually is

a proxy is an intermediary server. instead of your device connecting directly to a website, it connects to the proxy first, the proxy makes the request on your behalf, and the website sees the proxy’s IP address instead of yours.

a mobile proxy is a specific type of proxy where the intermediary connection goes out through a real mobile device, a physical modem or smartphone with an active SIM card on a real cellular network. the IP you appear to come from is whatever carrier IP that device was assigned when it connected to the network.

that is the whole mechanism. what makes it interesting is the properties of the IP, not the proxy protocol itself.

what makes a mobile proxy different is the IP on the other end, not the software handling the connection.

the software layer (HTTP or SOCKS5) is the same as any proxy. what changes is that the exit IP is a carrier-assigned address, often shared with hundreds or thousands of other users behind CGNAT (carrier-grade network address translation, more on that below). that structural fact is what drives most of the practical advantages, and the limitations, of mobile proxies.

how cellular IPs differ from datacenter and residential

there are three broad categories of proxy IP, and understanding the differences explains most of the purchasing decisions in this space.

datacenter IPs come from cloud provider ranges: AWS, Hetzner, DigitalOcean, OVH, Alibaba Cloud, and hundreds of others. they are cheap, fast, and extremely easy to identify. any platform running even basic anti-abuse measures checks the ASN (autonomous system number) of incoming connections. an ASN owned by Amazon Web Services is not where normal users browse from. datacenter IPs are the first type to get blocked, hit captcha walls, or face registration friction on platforms that care about this.

residential IPs are home broadband addresses, usually sourced through peer-to-peer SDK arrangements where an app running on a consumer device routes traffic through that device’s connection when it is on wifi. residential IPs look more legitimate than datacenter because they belong to real consumer ISPs. the downside is the pooled nature: the specific exit you are using was someone else’s exit an hour ago, and you inherit whatever reputation it accumulated. quality varies enormously by provider and by the luck of the specific IP you draw.

mobile carrier IPs come from a real cellular network’s CGNAT pool. no normal user browses from a Hetzner IP. plenty of normal users browse from a Singtel IP. that is the asymmetry mobile proxies exploit.

a lookup of a dedicated mobile proxy exit on ipinfo.io or ip-api.com will show the org name as a carrier, “Singapore Telecommunications Limited” or “StarHub Ltd” or “M1 Limited”, not a hosting company. that org field is what platforms key on when they assign trust levels.

the reputation hierarchy in practice: dedicated mobile > residential (quality varies) > datacenter > shared free anything. mobile sits at the top for one structural reason that deserves its own section.

CGNAT and shared carrier IPs

CGNAT stands for carrier-grade network address translation. it is how mobile carriers handle the exhaustion of IPv4 addresses.

the internet has roughly 4.3 billion IPv4 addresses and several billion active mobile users. those numbers do not add up. carriers solve this by putting large groups of users behind a single public IP address, each user gets a private address internally, and the carrier’s NAT layer handles the translation when traffic goes to the public internet.

in practice, a single Singtel mobile IP address might be shared by anywhere from a few hundred to a few thousand active users at any given moment. when you use the Singapore train, your phone is one of tens of thousands of devices in range of towers serving the same CGNAT pool.

this has a direct consequence for platform anti-abuse: blocking a mobile carrier IP punishes thousands of legitimate users for the actions of one. a platform that blocks the IP a spammer used from a mobile connection also blocks every other Singtel customer behind that same address at that moment. platforms have learned this, and their enforcement models treat mobile IPs conservatively. banning at the IP level happens much less aggressively for carrier ranges than for datacenter ranges.

it also means that your mobile proxy IP looks, from the outside, like a busy shared carrier address. that is the cover. you are indistinguishable from the other real users behind the same CGNAT pool.

ASN and IP reputation

ASN stands for autonomous system number. it is a number assigned by IANA to a network operator that tells the internet routing system which IP ranges belong to which organization.

when a website or platform receives a connection, it can look up the ASN of the connecting IP in under a millisecond. the ASN tells the platform: is this from Amazon’s hosting range? from a known VPN provider? from a residential ISP? from a mobile carrier?

commercial IP intelligence databases (Maxmind, ipinfo, ip-api, Scamalytics) assign usage-type labels to IP ranges based on ASN data and behavioral signals. common labels: hosting, business, ISP, mobile. an IP labeled “hosting” on multiple databases is what the proxy industry calls “burned.” mobile carrier IPs almost never carry that label, because thousands of legitimate users sit behind every address.

this is why two SOCKS5 proxies with identical software stacks behave completely differently on platforms like Instagram, TikTok, or LinkedIn: one exits through a Hetzner IP (ASN 24940), the other exits through a Singtel IP (ASN 7473). the first sees CAPTCHAs, login friction, rate limits. the second gets treated like a real phone.

checking the ASN of any proxy exit before trusting it is a five-second operation:

# check exit IP and ASN
curl -s https://ipinfo.io/json | python3 -m json.tool

if the org field shows a cloud host name, you have a datacenter proxy regardless of what the seller calls it.

4G vs 5G

the cellular generation matters for speed and for where available IPs come from, but matters much less for proxy use cases than most people assume.

4G/LTE is the standard for the overwhelming majority of mobile proxy infrastructure. 4G is fast enough for every proxy use case (typical throughput in Singapore is 30-150 Mbps on a good connection), the hardware is mature and cheap, and 4G SIMs are widely available on all three major Singapore carriers.

5G offers higher theoretical speeds and lower latency, and 5G IP ranges are increasingly available in Singapore as Singtel and StarHub expand 5G coverage. for proxy purposes, 5G gives you a slightly more modern-looking device fingerprint and potentially faster throughput on bandwidth-heavy tasks like parallel scraping.

in practice, for most proxy tasks, 4G is perfectly adequate. the bottleneck is rarely the cellular connection. it is usually the target website’s response time, the overhead of your request logic, or the number of concurrent ports you have.

where 5G starts to matter: large-scale parallel scraping where you genuinely saturate 4G bandwidth per modem, and QA testing for apps that behave differently on 5G networks. for social account management, ad verification, and most other common use cases, 4G and 5G are equivalent from a trust perspective. both come from the same carrier ASN.

HTTP vs SOCKS5

every mobile proxy gives you at minimum a SOCKS5 endpoint. most also give you an HTTP/HTTPS proxy endpoint. understanding the difference matters for configuration.

HTTP proxy (also called HTTPS proxy or CONNECT proxy) operates at layer 7. it understands HTTP and HTTPS natively. your browser or client tells the proxy “connect me to example.com” and the proxy handles the TLS handshake on your behalf. practically every browser, most curl versions, and most scraping frameworks support HTTP proxies out of the box with zero extra libraries.

# http proxy
curl -x http://user:pass@sg1.proxy.com:8080 https://example.com

# set in environment
export https_proxy=http://user:pass@sg1.proxy.com:8080

SOCKS5 proxy operates at layer 4. it is a general-purpose TCP (and UDP) tunnel. it does not understand the protocol you are using, it just forwards the bytes. this makes it more flexible: you can use SOCKS5 for HTTP, HTTPS, SMTP, FTP, or any other TCP protocol. it also handles DNS more cleanly when configured correctly (SOCKS5h, the variant that sends the hostname to the proxy for remote DNS resolution rather than resolving locally first).

# socks5 with remote dns (socks5h)
curl --proxy socks5h://user:pass@sg1.proxy.com:1080 https://example.com

which to use:

  • browser automation via Selenium, Playwright, or Puppeteer: either works, but HTTP is usually simpler to configure
  • Python requests library: use HTTP proxy via proxies= dict, or install requests[socks] for SOCKS5
  • Telethon, Pyrogram, or other Telegram libraries: SOCKS5 specifically, because those libraries use pysocks under the hood
  • curl on the command line: both work, SOCKS5h is cleaner for DNS leak prevention
  • system-wide proxy for a whole machine: HTTP in most OS proxy settings dialogs, SOCKS5 in others

see the MTProto vs SOCKS5 guide if you are specifically setting up Telegram automation, that guide covers the protocol split in much more depth for that specific use case.

sticky sessions vs rotation

this is the most operationally important concept for anyone using mobile proxies for account-based work. getting it wrong explains most of the account bans and login challenges that proxy users blame on “bad IPs.”

sticky session means you hold the same exit IP for the duration of your session, however long that is. you look like a consistent device on a consistent connection. this is the default and correct mode for anything involving a logged-in session: social accounts, e-commerce accounts, ad platform accounts, forum accounts.

rotation means your exit IP changes, either on a schedule, on each request, or on demand when you trigger it. rotation is correct for stateless scraping of public data where you want to spread requests across many IPs to avoid rate limits. it is actively harmful for logged-in sessions, because platforms log the IPs a session uses and a session that appears on dozens of IPs in a day looks like a stolen credential being shared.

the three rotation models you will encounter:

model how it works right for
on-demand via API or link you trigger rotation yourself, IP holds until you say otherwise account management, any logged-in session
timed sticky window (e.g. 10-minute sticky) holds one IP for N minutes then rotates mild scraping, tolerates some session disruption
per-request / round-robin each connection gets a different IP stateless public-data scraping only

for account work: choose sticky, rotate only when you have a specific reason (IP burned, provider incident, deliberate account migration). rotating on a schedule for “safety” creates the instability signal you are trying to avoid.

for scraping: choose rotation, treat IPs as disposable, use on-demand rotation to get a fresh IP when you hit a rate limit. the web scraping with mobile proxies guide covers rotation strategy in detail for scraping workloads.

IP rotation mechanics

when you trigger an IP rotation on a mobile proxy, what actually happens depends on the provider’s architecture.

on a physical modem setup like Singapore Mobile Proxy, rotation works like this:

  1. you hit a rotation URL or call the API endpoint assigned to your port
  2. the controller sends a command to the modem to disconnect and reconnect its cellular data connection
  3. the modem’s SIM re-registers on the carrier network and gets a new DHCP lease from the CGNAT pool
  4. the new IP is active on your proxy port, usually within 3-10 seconds

the key property of this mechanism: the new IP comes from the same carrier’s CGNAT pool. it is a different address on the same ASN. to a platform’s risk engine, this looks like your phone switching between cell towers or going through a brief network dropout and reconnecting. that is indistinguishable from normal mobile behavior.

this is structurally different from a residential proxy pool rotation, where “rotation” might drop you onto an IP from a completely different ISP or geographic region. carrier-pool rotation is safe for sessions in a way that cross-provider rotation is not.

triggering rotation via a URL (the most common pattern):

# rotate IP on demand
curl "https://dashboard.singaporemobileproxy.com/api/rotate?port=YOUR_PORT&token=YOUR_TOKEN"

# confirm new IP
curl -x socks5h://user:pass@sg1.singaporemobileproxy.com:PORT https://ipinfo.io/json

some providers also allow rotation on connect: a special port that gives you a fresh IP every time a new connection opens. useful for scraping but not for account work.

what you can and cannot do with a mobile proxy

being honest about limits is more useful than overselling.

what mobile proxies genuinely help with:

  • getting a Singapore carrier IP that looks like a real mobile user, with all the trust properties that carries
  • reducing detection and friction on platforms that aggressively filter datacenter and residential pool IPs
  • isolating multiple accounts or sessions behind separate clean IPs
  • seeing geo-restricted content, pricing, ads, and app experiences as a Singapore user would
  • conducting technical audits of how Singapore mobile users experience a product

what mobile proxies do not solve:

  • browser fingerprinting. a proxy changes your IP, not your browser’s canvas fingerprint, WebGL renderer, screen resolution, font list, or timezone. if you are running multiple social accounts and they all have identical browser fingerprints, the proxy alone will not save them. pair mobile proxies with an anti-detect browser (AdsPower, Multilogin, GoLogin) for account isolation work.
  • behavioral signals. platforms score your session behavior: typing speed, scroll patterns, which buttons you click, how quickly you move between pages. a clean IP running robotic automation still looks like robotic automation.
  • platform terms of service. a mobile proxy does not make a ToS-violating activity compliant. it reduces detection risk for that activity, which is a different thing.
  • rate limits where the limit is per-account, not per-IP. if a platform caps requests per logged-in account, rotating IPs does not help. rotate accounts, not IPs.
  • perfect anonymity. your proxy provider can see the traffic you send through their infrastructure. if you need anonymity from the proxy provider itself, that is a different problem requiring a different architecture.

real use cases

social media multi-account management

platforms like Instagram, TikTok, Twitter/X, LinkedIn, and Facebook use IP-based signals as one layer of their account integrity systems. an account that was created on a datacenter IP, or that logs in from a different datacenter IP each session, accumulates risk signals faster than one on a consistent mobile carrier IP.

the common setup for agency-scale social account management:

  • one dedicated mobile proxy port per account (or per small group of closely related accounts)
  • anti-detect browser profile per account, pinned to that port
  • proxy held sticky; rotate only when there is a specific reason
  • sessions created on the proxy from day one, not migrated onto a proxy after creation on a datacenter IP

the TikTok, Shopee, and Lazada guide covers Singapore-specific account management considerations for those platforms in more depth.

ad verification

if you run paid advertising in Singapore or targeting Singapore users, you need to see your ads as a Singapore mobile user sees them. this means:

  • the ad is actually running (not paused, not budget-capped for that audience segment)
  • the creative and landing page render correctly on mobile
  • geo-targeted variants are serving to the right locations
  • competitors’ ads in your space are visible as they would be to your target audience

a Singapore mobile proxy lets you check all of this from a clean carrier IP without training the ad platform’s audience model on your activity. using a datacenter IP for ad verification often results in seeing degraded or test-mode ad serving because platforms detect non-consumer IP ranges.

web scraping

mobile proxies are the top tier for scraping targets with sophisticated bot detection. sites that have deployed solutions like Cloudflare Bot Management, Akamai Bot Manager, or PerimeterX check dozens of signals including IP type and reputation. a mobile carrier IP clears the first filter that kills most datacenter scraping operations.

practical scraping setup:

import httpx

proxies = {
    "http://": "socks5://user:pass@sg1.singaporemobileproxy.com:PORT",
    "https://": "socks5://user:pass@sg1.singaporemobileproxy.com:PORT",
}

async with httpx.AsyncClient(proxies=proxies) as client:
    resp = await client.get("https://target.com/product/12345")
    print(resp.status_code)

for high-volume scraping, you want rotating mobile IPs plus proper request pacing, realistic browser headers, and handling of JavaScript-rendered pages. mobile IPs buy you the IP reputation layer. the rest of the scraping stack is still your responsibility.

sneaker and retail drops

limited-release product drops on platforms like Nike SNKRS, Adidas, Supreme, and local Singapore drops rely on queue and purchase limit systems. these systems use IP reputation as one signal. mobile IPs are harder to filter than datacenter IPs for the same reasons as above.

the realistic picture: mobile proxies give you better odds than datacenter, but dedicated mobile IPs still risk bans if used for obviously automated purchasing behavior. platforms have gotten better at behavioral detection. the IP is one factor, not the whole game.

app quality assurance

if you build mobile apps or services for the Singapore market, you need to test:

  • how your app performs on SG carrier networks (latency, throughput, DNS behavior)
  • how your backend handles Singapore mobile IPs (not localhost or a dev server IP)
  • geo-gated features and content
  • third-party service behavior when called from a Singapore mobile IP (some APIs behave differently by region)

a mobile proxy with a real SG carrier IP is cleaner for this than a VPN to a Singapore datacenter, because it puts a real carrier IP in the request chain, not a VPN provider’s server IP.

market research and competitive intelligence

gathering pricing, product listing, content, and feature data from Singapore e-commerce platforms, classified sites, and media properties for market research requires seeing what Singapore users actually see. many platforms serve different content or pricing to different regions, and they detect the region by IP.

this is a legitimate and common research use case. mobile proxies ensure you are seeing Singapore-local data, not a globally-neutral or VPN-server-localized version.

how to choose a provider

the proxy market has a large gap between what providers claim and what they deliver. this checklist cuts through the marketing.

verify the IP type yourself, do not trust the label. take the proxy’s exit IP (connect through it and hit https://ipinfo.io/json) and check the org field. a Singapore mobile proxy should show a carrier name. “Singapore Telecommunications Limited” (Singtel, ASN 7473), “StarHub Ltd” (ASN 3758), or “M1 Limited” (ASN 38040) are the three major ones. if the org field shows a hosting company name, you have a datacenter IP being sold as mobile.

what to check how to check it what you want to see
IP org/ASN curl https://ipinfo.io/json through the proxy carrier name, not hosting company
geolocation accuracy same check, city and region fields Singapore
dedicated vs shared ask the provider directly 1:1, your port is yours
physical hardware ask or look for modem count claims real modems, not emulated
rotation mechanism test it on-demand, returns to same ASN
protocols supported test connecting with HTTP and SOCKS5 both, ideally
trial availability check the website at least a short free trial
support responsiveness send a pre-sales question response within hours, not days

dedicated vs shared ports. a dedicated port means the proxy endpoint (host + port + credentials) is assigned exclusively to you. no other customer routes traffic through your port. this matters enormously for account management, your IP reputation is yours. shared pools are fine for stateless scraping but wrong for building sessions on.

rotation from the same carrier ASN. when you rotate, a good provider pulls a new IP from the same carrier’s CGNAT pool. this is the correct behavior. a provider that “rotates” you onto a different carrier, or worse, a datacenter IP from their pool, breaks the model.

a real trial you can actually test. any provider confident in their infrastructure offers a trial where you can put a real session on the IP and observe how it behaves. a 24-48 hour dedicated trial is the standard for legitimate mobile proxy providers. we offer a free trial at /client/trial for exactly this reason.

jurisdiction and legal identity. for buyers who care: a provider operating openly under a real legal identity in a stable jurisdiction (Singapore in our case, covered by PDPA) is different from an anonymous offshore operation. this matters if you ever need to resolve a billing dispute, recover from a technical incident, or simply know who you are doing business with.

pricing red flags. if the price is dramatically below market for dedicated mobile proxies, something is not dedicated. genuine 4G modem infrastructure in Singapore has real hardware and SIM costs. prices below approximately SGD 30-40/month for a dedicated port are either shared pool, datacenter IP, or involve SIM cards from carriers with poor trust scores. the plans page has current SMP pricing if you want a benchmark.

how to set one up

once you have credentials from a provider, setup takes under five minutes. the credentials you will receive are typically:

host: sg1.singaporemobileproxy.com
port: XXXXX (your dedicated port number)
username: your_username
password: your_password

and a rotation URL for on-demand IP changes.

browser setup (Chrome / Chromium)

the simplest method is a browser extension. Proxy SwitchyOmega is the standard choice for Chrome and Chromium-based browsers.

in SwitchyOmega: 1. create a new profile (e.g. “SG Mobile”) 2. set protocol to SOCKS5 3. enter your host, port, username, password 4. activate the profile

for scraping or automation using Playwright or Puppeteer:

// playwright
const { chromium } = require('playwright');

const browser = await chromium.launch({
  proxy: {
    server: 'socks5://sg1.singaporemobileproxy.com:PORT',
    username: 'your_username',
    password: 'your_password',
  }
});

const page = await browser.newPage();
await page.goto('https://ipinfo.io/json');
console.log(await page.textContent('body'));

# playwright python
from playwright.async_api import async_playwright

async with async_playwright() as p:
    browser = await p.chromium.launch(
        proxy={
            "server": "socks5://sg1.singaporemobileproxy.com:PORT",
            "username": "your_username",
            "password": "your_password",
        }
    )
    page = await browser.new_page()
    await page.goto("https://ipinfo.io/json")
    print(await page.text_content("body"))

command line and scripts

# curl with SOCKS5 (remote dns)
curl --proxy socks5h://your_username:your_password@sg1.singaporemobileproxy.com:PORT \
  https://ipinfo.io/json

# curl with HTTP proxy
curl -x http://your_username:your_password@sg1.singaporemobileproxy.com:HTTP_PORT \
  https://ipinfo.io/json

# set environment variables for tools that read them
export http_proxy=http://your_username:your_password@sg1.singaporemobileproxy.com:HTTP_PORT
export https_proxy=http://your_username:your_password@sg1.singaporemobileproxy.com:HTTP_PORT
export ALL_PROXY=socks5h://your_username:your_password@sg1.singaporemobileproxy.com:PORT

Python

# requests library (http proxy)
import requests

proxies = {
    "http": "http://your_username:your_password@sg1.singaporemobileproxy.com:HTTP_PORT",
    "https": "http://your_username:your_password@sg1.singaporemobileproxy.com:HTTP_PORT",
}
resp = requests.get("https://ipinfo.io/json", proxies=proxies, timeout=15)
print(resp.json())

# requests with socks5 (install: pip install requests[socks])
proxies_socks = {
    "http": "socks5h://your_username:your_password@sg1.singaporemobileproxy.com:PORT",
    "https": "socks5h://your_username:your_password@sg1.singaporemobileproxy.com:PORT",
}
resp = requests.get("https://ipinfo.io/json", proxies=proxies_socks, timeout=15)
print(resp.json())

# httpx (async, preferred for production scraping)
import httpx
import asyncio

async def check():
    proxies = {
        "http://": "socks5://your_username:your_password@sg1.singaporemobileproxy.com:PORT",
        "https://": "socks5://your_username:your_password@sg1.singaporemobileproxy.com:PORT",
    }
    async with httpx.AsyncClient(proxies=proxies) as client:
        resp = await client.get("https://ipinfo.io/json")
        print(resp.json())

asyncio.run(check())

Node.js

// node-fetch with https-proxy-agent
const fetch = require('node-fetch');
const { SocksProxyAgent } = require('socks-proxy-agent');

const agent = new SocksProxyAgent(
  'socks5://your_username:your_password@sg1.singaporemobileproxy.com:PORT'
);

const resp = await fetch('https://ipinfo.io/json', { agent });
const data = await resp.json();
console.log(data);

mobile device setup (iOS and Android)

for testing how your app or service behaves on a mobile IP from an actual device:

iOS: settings > Wi-Fi > tap your network > scroll to HTTP Proxy > configure proxy > manual - server: sg1.singaporemobileproxy.com - port: your HTTP port - authentication: on, enter username and password

Android: settings > Network & internet > Wi-Fi > tap your network > edit (pencil icon) > advanced options > proxy > manual - proxy hostname: sg1.singaporemobileproxy.com - proxy port: your HTTP port

note: iOS and Android system proxy settings only apply to HTTP/HTTPS traffic from apps that honor the system proxy. some apps bypass the system proxy. for per-app proxy on Android without root, use a SOCKS5-capable app like Proxy Droid.

verifying the setup

always confirm the proxy is actually being used before starting real work:

# should show the carrier IP, not your real IP
curl --proxy socks5h://user:pass@sg1.singaporemobileproxy.com:PORT \
  https://ipinfo.io/json

# look for:
# "org": "AS7473 Singapore Telecommunications Ltd" (or StarHub/M1)
# "country": "SG"
# "city": "Singapore"

if the org field shows your real ISP or a VPN provider, the proxy is not being used. if it shows a cloud host, you have a datacenter IP.

DNS leaks and how to avoid them

a DNS leak happens when your device resolves domain names using your local DNS resolver (typically your ISP’s DNS server) instead of routing DNS queries through the proxy. the result: your real location is partially visible to DNS infrastructure even though your HTTP traffic goes through the proxy.

why this happens with proxies: HTTP and SOCKS5 proxies forward your TCP traffic, but DNS resolution is a separate operation. by default, most clients resolve the hostname locally first, then connect to the resolved IP via the proxy. the DNS query itself bypasses the proxy.

the fix: use SOCKS5h instead of SOCKS5. the h suffix means the hostname is sent to the proxy server for remote resolution, DNS happens on the proxy’s end, not yours.

# socks5 (resolves dns locally, potential leak)
curl --proxy socks5://user:pass@host:port https://example.com

# socks5h (resolves dns remotely, no leak)
curl --proxy socks5h://user:pass@host:port https://example.com

in Python requests:

# socks5h:// prefix triggers remote dns in requests[socks]
proxies = {"https": "socks5h://user:pass@host:port"}

in Playwright and Puppeteer, the proxy setting handles DNS correctly by default when using SOCKS5.

testing for leaks:

# connect through your proxy, then hit a dns leak test
curl --proxy socks5h://user:pass@host:port \
  "https://ipleak.net/json/" | python3 -m json.tool

look at the dns_detected_ips field. if it contains your real ISP’s DNS servers, you have a leak. switch to SOCKS5h or configure your proxy software to use remote DNS resolution.

for browser-based DNS leak testing, use browserleaks.com/dns while the proxy is active. each listed DNS server should resolve to the proxy provider’s network or the carrier’s DNS, not your home ISP.

legality and acceptable use

mobile proxies are legal tools in Singapore and in most jurisdictions. using a proxy to route your traffic through a different IP is not inherently unlawful. the legality question always comes down to what you do with it, not the proxy itself.

legitimate use cases with no legal concerns:

  • accessing geo-restricted content you have the right to access
  • ad verification and market research
  • app and website QA testing
  • privacy-conscious browsing
  • accessing your own accounts from a different IP
  • data collection from public websites (within their terms of service)

use cases that may create legal or terms-of-service risk:

  • violating a platform’s terms of service (ban risk, not usually a legal risk, but read the terms)
  • automated purchasing in violation of retailer fair-use policies (may constitute unauthorized computer access in some jurisdictions if the site explicitly prohibits it and you bypass technical measures)
  • impersonating another user or entity
  • fraud of any kind, including creating fake accounts to deceive platforms or users

Singapore-specific context: Singapore’s Computer Misuse Act (CMA) covers unauthorized access to computer systems. using a proxy to route traffic is not covered by the CMA. using a proxy to access systems you do not have authorization to access is a separate matter and is covered.

for legitimate use cases, a mobile proxy is simply a network tool. the same way a VPN, a CDN, or a corporate gateway routes your traffic, a proxy routes your traffic. the IP you appear from changes. the lawfulness of your activity does not.

SMP operates under Singapore law, is registered as a business, and requires users to agree to an acceptable use policy at sign-up. the use cases above are the framing we use for our own policy decisions.

cost and how pricing works

mobile proxy pricing varies a lot, and the variance reflects genuine differences in what you are getting.

what drives the cost of a legitimate dedicated mobile proxy:

  • physical hardware: a 4G/LTE modem costs SGD 40-150 depending on the model. it has a useful life of 2-4 years before replacement
  • Singapore SIM cards and data plans: real carrier SIMs in Singapore are not free. data capacity adds direct cost
  • rack space, power, connectivity: physical servers to host the modems and route traffic
  • the management layer: software to handle port assignment, rotation, credential management, monitoring

a legitimate dedicated Singapore mobile proxy is priced accordingly. rough market range as of mid-2026: SGD 30-80/month per dedicated port, depending on data allocation and the carrier.

pricing models you will encounter:

model what it means right for
per port, fixed monthly one dedicated port, fixed bandwidth (e.g. 50GB, 100GB, unlimited) account management, any session-based work
bandwidth-based pay per GB used, port may be shared or dedicated variable scraping workloads
per-IP pool access to a rotating pool, not dedicated stateless scraping
per-day or per-hour short-term dedicated access one-off audits, testing

at SMP, we sell by the port: each port is dedicated to one customer, comes with a specific data allocation, and includes on-demand rotation. current plans are at /plans, and you can see what carrier IPs are in the active pool at /pool.

the math on “is it worth it” for account management: the cost of a dedicated mobile port is typically less than the cost of re-warming a banned account or the lost revenue from platform downtime. for serious operations (agencies, resellers, automation-heavy businesses), dedicated mobile proxies are not a luxury item. for individual users testing one thing, the free trial at /client/trial is the right starting point.

troubleshooting

symptom most likely cause check first
proxy not connecting at all wrong host or port re-check credentials, try telnet host port or nc -zv host port
connecting but wrong IP proxy bypassed (direct connection) run the ipinfo check explicitly through the proxy
datacenter IP showing wrong product or misconfigured port check org field on ipinfo, contact provider if carrier IP was promised
geo shows wrong country provider has non-SG IPs in pool check country and city fields on ipinfo, escalate if SG was specified
CAPTCHA on every request IP flagged or heavily shared rotate the IP, if still hitting captchas the IP has accumulated bad history
login challenges on social accounts session on multiple IPs (rotation when sticky needed) disable rotation, hold one IP per account, start a fresh session on that IP
DNS leak showing real ISP using SOCKS5 instead of SOCKS5h switch to SOCKS5h in your client config
slow speeds modem signal quality, network congestion try rotating to get a new modem connection, check provider status page
rotation not working wrong API token or port number re-check the rotation URL, confirm with provider
timeout errors intermittently normal cellular network behavior add retry logic with backoff, mobile networks have brief dropouts
proxy authentication required wrong username/password re-paste both, watch for trailing spaces or smart-quote substitution
works on wifi, fails on cellular your client device’s ISP blocks proxy port try a different port (ask provider), most offer ports 1080, 3128, 8080, 10080
anti-detect browser not using proxy profile not pinned to port check browser profile settings, confirm proxy is active in that profile

FAQ

do I need a mobile proxy or will a residential proxy do?

depends on your use case. for Singapore-specific work where carrier ASN matters (account management on platforms that specifically filter residential pools, or any platform where you need a verifiably local mobile IP), dedicated mobile is the right choice. residential pools vary enormously in quality and many Singapore residential proxy products are actually routing through VPS nodes in SG datacenters, not residential broadband. verify the ASN either way.

can I use one mobile proxy port for multiple accounts?

yes, but your accounts share an IP. if one account gets flagged for behavior, the IP gets associated with that behavior, which affects all accounts on that port. for isolation, one dedicated port per account or per account group is the standard practice. shared ports reduce cost but increase cross-contamination risk.

how often should I rotate the IP?

for account management: rarely. hold one IP per account indefinitely unless something goes wrong. for scraping: as often as useful given the target site’s rate limits, can be per-request on a rotating endpoint.

will a mobile proxy make me completely anonymous?

no. it changes your apparent IP address, which is one layer of attribution. your proxy provider sees your traffic. your device fingerprint (browser canvas, WebGL, screen size, etc.) is unchanged. your account credentials and login behavior are unchanged. mobile proxies improve your trust profile with platforms, they do not provide anonymity from your proxy provider, and they do not replace other operational security practices.

what happens if the modem loses signal or the device reboots?

on a well-run provider, the port stays active. the modem reconnects, gets a new carrier IP (which may be different from the previous one), and the port forwards traffic on the new IP. you can check the current exit IP at any time by hitting ipinfo through the proxy. SMP has automated monitoring that flags ports with signal or connectivity issues.

is it legal to use a mobile proxy for scraping in Singapore?

using a proxy to scrape is not illegal in Singapore per se. the Computer Misuse Act covers unauthorized access to computer systems. scraping a public website without circumventing authentication is generally not covered. that said, many sites prohibit scraping in their terms of service, which is a contractual issue even if not a criminal one. the practical risk from aggressive scraping is a ban from the platform, not a legal action, unless you are circumventing technical access controls.

can I get a dedicated Singapore Singtel or StarHub IP specifically?

at SMP, you can see the carrier distribution of our active pool at /pool. the mix of Singtel, StarHub, and M1 changes as modems rotate and new hardware is added. if a specific carrier is critical to your use case (some platforms have per-carrier trust differences), ask support which carriers are currently available for dedicated assignment.

what does “unlimited bandwidth” mean on mobile proxy plans?

it means there is no hard data cap on the port. in practice, mobile modems have physical throughput limits (typically 50-150 Mbps on 4G depending on signal and network congestion), and providers with unlimited plans often have fair-use policies. check the plan terms. for heavy-throughput scraping workloads, confirm whether the unlimited plan has any sustained-throughput or concurrent-connection limits.

how anti-detect browsers work with mobile proxies

if you are running multiple social media accounts, understanding the browser fingerprint layer is as important as understanding the IP layer. this is the part most guides skip, and the gap explains why people buy mobile proxies, set them up correctly from an IP standpoint, and still get account bans.

what browser fingerprinting is: every browser leaves a distinct signature composed of dozens of signals. canvas fingerprint (how your GPU renders a specific drawing operation), WebGL fingerprint (GPU and driver details), screen resolution and color depth, installed fonts, timezone, language settings, navigator.userAgent, hardware concurrency, device memory, audio context behavior, WebRTC leak status, and more. platforms combine these signals into a fingerprint that is often more stable and unique than your IP address.

if you log into five Instagram accounts from five dedicated mobile proxy ports but from the same browser with the same fingerprint, the five sessions look like the same device despite appearing from different IPs. that is a ban signal.

how anti-detect browsers address this: tools like AdsPower, Multilogin, GoLogin, and Incogniton create isolated browser profiles where each profile has a synthetically unique and internally consistent fingerprint. canvas noise is different, WebGL renderer is different, timezone matches the proxy location, fonts are adjusted. crucially, these values are consistent within a session but different across profiles.

the pairing that works for account isolation: one dedicated mobile proxy port + one anti-detect browser profile, with the port pinned to the profile. the proxy handles the IP layer, the anti-detect browser handles the fingerprint layer. without both, you are patching one signal while leaking another.

the profile-port pairing protocol:

  1. create a profile in your anti-detect browser
  2. assign the dedicated mobile proxy port to that profile at creation time
  3. create the target account from within that profile, through that proxy, from day one
  4. never use that profile for any other account, never use that port in any other profile
  5. if you need to rotate the IP, do it from within the same profile and notify yourself in your account registry

the registry part is important. once you have more than five account-profile-port triples, managing these mappings in your head creates errors. a spreadsheet at minimum, preferably a queryable log: account identifier, platform, anti-detect profile name, proxy port, proxy credentials, date created, current status. the failure you are preventing is accidentally pointing two accounts at the same port, or rebuilding a device and losing the mapping.

the warm-up layer that settings cannot give you: even with perfect IP and fingerprint isolation, brand-new accounts on competitive platforms have less latitude than aged accounts. there is an operational warm-up period where you avoid aggressive actions (mass follows, bulk posting, scraping-adjacent behavior) and build a normal-looking history. mobile proxies do not shortcut warm-up. they give you a clean starting position. what you do in the warm-up window determines whether you keep it.

how platforms detect proxies and why mobile bypasses most of it

understanding the detection mechanisms explains why mobile works when other proxy types do not, and where the limits are.

IP reputation database lookups are the first filter. commercial databases like Maxmind GeoIP2, ipinfo.io, and Scamalytics maintain classifications of IP ranges: hosting, residential, mobile, VPN, proxy, TOR. these are updated continuously based on usage signals and ASN data. when a platform receives a connection, it queries one or more of these databases. a “hosting” or “proxy” classification triggers elevated scrutiny or automatic friction. a “mobile” classification from a real carrier ASN essentially never appears in the proxy classification lists, because the carrier IP is a real carrier IP, not a proxy server.

ASN checks are the bluntest version of this. ASN 24940 is Hetzner Online GmbH. ASN 16509 is Amazon. ASN 7473 is Singapore Telecommunications. platforms maintain allow/deny logic by ASN type. no custom signal processing needed, the ASN lookup is instant and sufficient to classify 90% of non-residential proxies.

geolocation consistency checks: if your account was created in Singapore, your device claims to be an iPhone in Singapore, but your IP is geolocating to Frankfurt, that inconsistency is a risk signal. mobile proxies geolocate to their actual carrier’s coverage area. a Singtel SIM on a device connected to Singtel’s network resolves to Singapore, consistently, matching every other signal in the request.

IP velocity checks: multiple accounts sharing an IP within a short time window is a known signal for shared proxies and VPN exits. the CGNAT model dilutes this signal for mobile IPs: thousands of legitimate users share every carrier IP. the statistical expectation is already set for multiple accounts per mobile IP.

behavioral signals: these are independent of IP type. request rate, timing patterns, action sequences, mouse movement patterns (for web), tap patterns (for app). a clean mobile IP running bot-speed form fills still fails behavioral analysis. mobile proxies address the network layer only.

TLS and HTTP fingerprinting: advanced platforms fingerprint the TLS handshake (JA3/JA4 fingerprints) and HTTP header order. a Python requests library has a different TLS fingerprint than a real iPhone browser. if you need to defeat TLS fingerprinting, you need a client that mimics real browser behavior (curl-impersonate, or actual browser automation with Playwright/Puppeteer). this is a separate layer from the proxy.

WebRTC leak: browsers expose local and STUN-discovered IPs via WebRTC by default. if WebRTC is enabled, your real IP can be visible to the page even through a proxy. anti-detect browsers suppress WebRTC, standalone proxy setups do not. check browserleaks.com/webrtc while proxied to confirm.

the summary: mobile proxies definitively address IP reputation, ASN classification, geolocation consistency, and IP velocity dilution. they do not address browser fingerprint, behavioral signals, TLS fingerprinting, or WebRTC leaks. for simple use cases (ad verification, market research, one-off scraping), mobile IP alone is often sufficient. for account management at scale, pair mobile proxies with anti-detect browsers and realistic behavioral patterns.

mobile proxies for Singapore specifically

Singapore is a specific use case that comes up often enough to warrant a dedicated section. the SG proxy market has a few dynamics that are different from buying a US or EU mobile proxy.

why Singapore mobile IPs are useful beyond Singapore: Singapore is a major cloud and connectivity hub for Southeast Asia. many SEA-regional services use Singapore as their primary CDN point of presence, so a Singapore IP often gives you the lowest-latency access to services serving Singapore, Malaysia, Indonesia, Thailand, and the Philippines. if you need SEA regional access rather than specifically Singapore, a Singapore mobile IP often works for the whole region.

the three Singapore carriers and their differences:

carrier ASN typical use by platforms
Singtel 7473 highest recognition, most common in proxy infrastructure
StarHub 3758 solid trust, well-distributed
M1 38040 good trust, less common in proxy pools

from a proxy trust perspective, all three are legitimate Singapore mobile carrier ASNs. the differences matter more at the application level: some geo-targeted campaigns, some localization logic, and some carrier-specific services distinguish between them. for most platform trust purposes, any of the three Singapore carriers will behave equivalently.

MVNO SIMs (virtual carriers): Singapore has several MVNOs (mobile virtual network operators) that resell capacity on the big three networks. examples include Circles.Life (on TPG’s network), Zero Mobile, Giga!, and others. MVNOs get their own ASN or share the host carrier’s ASN depending on their agreement. if you encounter a proxy claiming to be “Singapore mobile” but the ASN traces to an MVNO you have not heard of, check whether the MVNO’s ASN has the same trust properties as the major carriers. it usually does, but confirm by looking at the actual ASN classification.

Singapore-specific platforms and localization:

  • Shopee and Lazada: both have Singapore storefronts with SG-specific pricing, promotions, and product availability. accessing these from a Singapore mobile IP gives you the genuine Singapore user experience. from a datacenter IP, you may get redirected or see global pricing rather than SG-local pricing.
  • PropertyGuru, 99.co, Carousell: Singapore’s major property and marketplace platforms do IP-based localization. research from a Singapore mobile IP ensures you are seeing the same listings, pricing, and recommendations a local user sees.
  • Singapore government digital services: gov.sg services, Singpass-adjacent flows, and various e-government portals may behave differently for SG vs non-SG IPs.
  • streaming and media: services with SG licensing (Toggle, Mediacorp streaming) restrict by IP. a Singapore mobile IP provides SG-localized access.

the TikTok, Shopee, and Lazada Singapore guide covers the specific operational considerations for those platforms in detail.

the dedicated Singapore proxy advantage: SMP operates physical modems in Singapore on real Singapore carrier SIMs. the infrastructure is in Singapore, the SIMs are Singapore SIMs, the carrier ASNs are Singapore carrier ASNs. this is distinct from a proxy provider who claims “Singapore IPs” but routes through a Singapore-located VPS (datacenter IP, not mobile) or through a VPN exit in Singapore (datacenter ASN). always verify the ASN before trusting the country claim.

multi-account management: a practical workflow

running multiple accounts across social, e-commerce, or advertising platforms is the most common high-stakes use case for mobile proxies. this section gives a concrete workflow rather than principles.

the core constraint: platforms do not want one person or entity controlling many accounts. their detection systems are built to find that pattern. every signal they collect is weighted toward finding it. your operational security is about not providing those signals.

signals platforms use to cluster accounts:

  • same IP address across accounts
  • same device fingerprint across accounts
  • same payment method across accounts
  • common email domain or phone number patterns
  • accounts created in the same time window from the same IP
  • accounts that follow each other, interact with each other, or share audiences
  • same recovery email or linked phone numbers

mobile proxies address the first point. you still need to manage the others.

the minimum viable isolation setup:

for each account that needs genuine isolation:

  1. a dedicated mobile proxy port (one port, one account)
  2. an anti-detect browser profile with unique fingerprint settings
  3. a unique email address not linked to your other accounts
  4. a payment method not shared across accounts (or use platforms that allow crypto/gift card top-up)
  5. a warm-up period before any high-value actions

the account registry: build and maintain a registry before you need it. a simple spreadsheet with these columns covers most operations:

account ID platform anti-detect profile proxy port credentials location created date current status notes

every time you create an account, log it immediately. the failure mode is losing the proxy-to-account mapping when you have dozens of accounts and a provider incident scrambles your mental model.

what to do when an account gets flagged:

  1. stop all activity on that account immediately
  2. do not rotate the proxy while the account is under review, this adds a signal
  3. if the account is appealable, appeal on a clean connection (not through the same proxy, ideally)
  4. assess whether the IP is burned (test it with a new session) or whether the issue is behavioral
  5. if the IP is clean but the account is gone, the issue was behavioral or fingerprint, not the proxy
  6. if the IP is flagged, rotate and start fresh sessions on the new IP from accounts that have not yet been on that IP

the diagnostic principle: if all accounts on a port get hit simultaneously, suspect the IP. if accounts on different ports with the same behavioral pattern get hit, suspect the behavior. mobile proxies are one variable, not the only one.

working with the proxy pool

the Singapore Mobile Proxy pool page shows the active carrier distribution of modems in the current infrastructure. this section explains how to read it and what it means operationally.

what “pool” means in context: at SMP, the pool is not a shared rotating pool of IPs shared among customers. each customer gets a dedicated port, meaning your port-to-modem assignment is exclusive to you. the “pool” refers to the available modems that new customers can be provisioned onto, and the carrier and data distribution across those modems.

carrier distribution matters for different use cases: if your target platform has per-carrier detection logic (some do, particularly for SG market campaigns), knowing which carrier your modem is on matters. you can verify this after provisioning by checking the ASN of your exit IP. if you need a specific carrier, contact support before ordering.

modem signal quality: not all physical locations have equally strong cellular signal. modems in the SMP farm are co-located in controlled environments with known-good signal. this is why managed proxy infrastructure has a quality advantage over DIY setups on consumer devices in variable signal environments.

what happens when the carrier changes your IP allocation: carriers periodically re-number CGNAT pools as their infrastructure evolves. when this happens, the IP you were on may change even without a manual rotation trigger. this is normal cellular network behavior and is handled transparently by the infrastructure. from your perspective, if you check your exit IP and it has changed without you triggering rotation, this is why. for account management, this is operationally the same as a modem dropping and reconnecting, which platforms accept as normal behavior.

mobile proxies vs VPNs vs dedicated servers

the comparison question that comes up most often: “why not just use a VPN?” this deserves a direct answer.

VPN: a VPN creates an encrypted tunnel from your device to a VPN server, and your traffic exits through that server’s IP. the VPN server IP is almost always a datacenter IP (the VPN provider rents server capacity from cloud providers). commercial VPN services (ExpressVPN, NordVPN, Surfshark, etc.) have their IP ranges well-catalogued in commercial databases and are almost universally classified as VPN/hosting IPs. platforms that care about IP quality block them at the same rate as other datacenter IPs. VPNs are excellent for privacy from your ISP and for bypassing network-level censorship. they are not good for tasks where you need a trusted-looking IP.

dedicated server / VPS with datacenter IP: you get a static, clean IP that is yours alone. the issue is ASN: an OVH or DigitalOcean IP is still identifiable as a hosting IP. useful for server-to-server operations where IP type does not matter, not useful for operations where platform trust scoring applies.

residential proxy pool: better IP classification than datacenter, worse than mobile. the pool model means you share IPs with other customers. past behavior on those IPs affects you. quality varies by provider and by the specific IPs you draw. cheaper than dedicated mobile, less predictable.

dedicated mobile proxy: dedicated port, carrier IP, on-demand rotation within the same carrier ASN. highest trust tier for platform operations. most expensive per port.

VPN datacenter VPS residential pool dedicated mobile
IP type datacenter (usually) datacenter residential mobile carrier
ASN classification hosting/VPN hosting ISP/residential mobile
dedicated to you yes (shared server) yes no yes
on-demand rotation no no usually yes
best for privacy, censorship bypass server automation, cost-sensitive moderate-trust scraping account management, high-trust ops
worst for platform trust any trust-sensitive use case account management bulk cost-sensitive scraping

VPNs and mobile proxies solve different problems. using a VPN for account management is the wrong tool. using a mobile proxy for bypassing national content censorship is overpaying for something a VPN or MTProto proxy does better. the tool choice depends on the job.

running a mobile proxy yourself vs buying managed infrastructure

some users ask whether they can build their own mobile proxy with a phone and a SIM card. the answer is yes, with significant practical caveats.

the DIY mobile proxy setup:

  1. a 4G USB modem (Huawei E3372, ZTE MF79U, and similar) or a spare Android phone
  2. a SIM card on a Singapore carrier
  3. a Linux server (Raspberry Pi works) connected to the modem via USB
  4. a SOCKS5 server (dante, 3proxy, or microsocks) running on the Linux server
  5. NAT routing configured to send outbound traffic from the SOCKS5 server through the modem’s cellular interface
# rough outline for microsocks on linux
# install microsocks
git clone https://github.com/rofl0r/microsocks
cd microsocks && make && sudo make install

# run with auth on port 1080
microsocks -i 0.0.0.0 -p 1080 -u youruser -P yourpass &

# route traffic through modem interface (usb0 or eth1 depending on modem mode)
# check interface name: ip link show
sudo ip route add default via MODEM_GATEWAY_IP dev usb0 metric 100

what you get with DIY:

  • full control over the hardware and SIM
  • no monthly proxy subscription cost (you pay hardware and SIM data costs directly)
  • single port, single modem, single IP

what you give up compared to managed infrastructure:

  • no failover. if the modem drops, you have no proxy until you fix it
  • no rotation API. manually cycling the connection via ip link set usb0 down && ip link set usb0 up is the rough equivalent, but it is not an API endpoint
  • no dashboard or port management
  • no monitoring. you will not know the port is down until you check it
  • no scale. one modem is one port. running ten requires ten modems, ten SIMs, and significantly more management
  • limited SIM plan options. getting good data pricing for proxy-level usage on consumer Singapore SIMs is harder than enterprise arrangements providers have

when DIY makes sense: you have a specific use case that needs a single dedicated SG mobile IP, you have the time to manage the infrastructure, and you want maximum control. technical users who need one or two ports and are willing to handle maintenance often find DIY viable.

when managed infrastructure makes sense: you need more than two or three ports, you need reliable uptime, you need rotation and management APIs, or you want to focus on your actual use case rather than modem management. the operational overhead of a modem farm at scale is significant, which is why managed providers exist.

SMP’s infrastructure currently runs 100+ physical modems across Singapore carriers, with automated monitoring, failover handling, rotation APIs, and a management dashboard. that is the managed alternative. the Singapore Mobile Proxy landing page has the full product description.

understanding the provider landscape

the mobile proxy provider market is worth navigating carefully. a few patterns to recognize:

the datacenter-as-mobile scam: the most common fraud in the proxy space. a provider advertises “Singapore mobile proxies” and delivers IPs from a Singapore-located VPS. the IPs are not mobile carrier IPs; they are datacenter IPs that happen to geolocate to Singapore. the provider is either deliberately misrepresenting or is reselling someone else’s product without understanding it. ASN verification is your protection: a Singtel, StarHub, or M1 ASN is real. a cloud provider ASN is not mobile regardless of what the product page says.

residential-pool-resold-as-mobile: some providers who legitimately run residential IP pools label their Singapore residential IPs as “mobile” because mobile sounds more premium. residential IPs from Singapore home broadband connections are classified as ISP/residential in most databases, not mobile. they are better than datacenter but not mobile-tier trust. check the usage type field in ipinfo.

MVNO confusion: as noted above, some MVNO-sourced IPs classify slightly differently from major carrier IPs. not a scam, just a real product difference. if a provider’s “mobile” IPs trace to a Singapore MVNO ASN, that is what you are getting. it may be fine for your use case. know what you are buying.

resellers: a layer of the market resells capacity from upstream providers. this is fine as long as the underlying IP quality is real. the issue with resellers is usually support quality (they depend on upstream) and pricing (added margin on top of actual costs). verify the IP type yourself regardless of what channel you buy through.

green flags for a legitimate provider:

  • transparent about which carriers they use
  • able to confirm the ASN of your exit IP
  • offer a real trial (not a “money-back guarantee” that requires a purchase, a genuinely free trial port)
  • have real support who can answer technical questions about the infrastructure
  • have been operating for a verifiable period with consistent reviews

red flags:

  • “unlimited bandwidth” at prices that do not cover hardware and SIM costs
  • no information about what hardware or carriers they use
  • trial requires a full subscription first
  • support is only automated chatbot or a generic email address
  • the exit IP ASN is a cloud provider, not a carrier

glossary

terms that appear in mobile proxy documentation and what they actually mean:

ASN (autonomous system number): a number assigned to a network operator that identifies whose IP range an address belongs to. the fastest way to check whether a proxy is actually mobile carrier.

CGNAT (carrier-grade network address translation): how mobile carriers put many users behind one public IP. the mechanism that makes mobile IPs inherently shared and inherently harder to block.

dedicated port: a proxy endpoint assigned exclusively to one customer. your reputation is yours. opposite of a shared pool where multiple customers share an exit.

DNS leak: when your device resolves domain names using local DNS instead of routing queries through the proxy. fix with SOCKS5h (remote DNS resolution).

exit IP: the IP address the destination server sees. for a proxy, this is the proxy’s outbound IP, not your device IP.

fingerprint (browser): the combined signature of a browser’s capabilities, settings, and rendering behavior. unique enough to identify a browser across sessions even without cookies. distinct from IP, a separate tracking layer.

HTTP proxy: a proxy that understands HTTP/HTTPS. simpler to configure in most clients. does not handle non-HTTP protocols.

IMEI: the hardware identifier of a modem. relevant for managed proxy infrastructure; not something you typically interact with as a customer.

IP reputation: the aggregate trust score of an IP address based on historical usage, ASN classification, database labels, and behavioral signals. mobile carrier IPs start with high reputation. datacenter IPs start low.

rotation: changing the exit IP. on-demand rotation (you trigger it) is correct for account work. per-request or timed rotation is for stateless scraping.

SOCKS5: a general-purpose TCP proxy protocol that works with any application protocol. the correct choice for most mobile proxy use cases. SOCKS5h adds remote DNS resolution.

SOCKS5h: SOCKS5 with remote hostname resolution. the client sends the hostname to the proxy instead of resolving locally first. prevents DNS leaks.

sticky session: holding the same exit IP for the duration of a session. the default and correct mode for logged-in account work.

SIM (subscriber identity module): the card in a modem that connects it to a specific carrier network and data plan. what makes a mobile proxy actually mobile.

usage type: the classification databases assign to an IP range: hosting, ISP, mobile, business, etc. the field to check when verifying an IP is actually mobile carrier.

warm-up: the period of cautious, human-speed activity on a new account before applying heavier automation or aggressive actions. required regardless of proxy quality.

bottom line

a mobile proxy is a proxy whose exit IP comes from a real mobile carrier’s CGNAT pool rather than a datacenter or residential ISP. that carrier IP is what changes the trust math with platforms, because platforms can’t aggressively block carrier IPs without also blocking the thousands of legitimate users behind them.

the practical value is real but specific: mobile proxies are the right tool for account management, ad verification, Singapore-localized market research, and scraping targets that have datacenter and residential block lists. they are not magic. they address the IP-reputation layer. browser fingerprinting, behavioral signals, and session hygiene are separate layers you also need to manage.

if you are not sure whether mobile proxies are the right fit for your use case, the fastest way to find out is to put a real session on one for 24 hours and observe the difference. we make that easy: start a free trial at /client/trial, no credit card required, dedicated port with a real Singapore carrier SIM.

for the technical protocol layer underneath mobile proxies, the MTProto vs SOCKS5 guide goes deep on what SOCKS5 actually does and why it is the right protocol for session-based proxy work. and the web scraping case studies give concrete examples of mobile proxy performance across different scraping targets.

ready to try Singapore mobile proxies?

2-hour free trial. no credit card required.

start free trial
message me on telegram