What Is a Mobile Proxy? 4G/5G IPs Explained
What a mobile proxy is, how 4G/5G carrier IPs earn the highest trust score of any proxy type, when to use one, and how mobile compares to residential and datacenter proxies.
A mobile proxy routes your traffic through an IP address assigned by a mobile carrier to a real 4G or 5G device. Because hundreds of genuine subscribers share each carrier IP through CGNAT, blocking one mobile IP risks blocking many real users — which gives mobile proxies the highest trust score of any proxy type.
## How does a mobile proxy work?
Mobile carriers route thousands of subscribers through a small pool of public IPs using Carrier-Grade NAT (CGNAT). When your request exits through a mobile proxy, the target site sees a carrier IP shared by a crowd of real phone users. That shared nature is exactly why mobile IPs are so hard to block: the IP reputation is "ordinary mobile user," and a ban would catch innocent subscribers too.
## Mobile vs residential vs datacenter proxies
- **Mobile** — 4G/5G carrier IPs. Highest trust, hardest to block, most expensive. Best for social platforms, app testing and ad verification. - **Residential** — real ISP home IPs. High trust, mid-priced, huge pool. Best for general scraping and geo-locked content. See [what is a residential proxy](/blog/what-is-a-residential-proxy). - **Datacenter** — server-hosted IPs. Fast and cheap but easy to detect. Best for tolerant public targets.
## What are mobile proxies used for?
- **Social media automation and management** — Instagram, TikTok, X, Reddit - **Ad verification** on mobile-first networks - **App and mobile-web QA** from real carrier IPs - **Account creation** on platforms with aggressive device and network fingerprinting - **Sneaker and limited-release** retail at scale
Every workload must respect the destination site's terms of service, applicable law and our acceptable-use policy.
## When should you choose mobile over residential?
Choose mobile when the target specifically scores carrier ASNs or when residential IPs are getting blocked despite clean sessions — typically the strictest social and mobile-only platforms. For most scraping, geo-targeting and price-intelligence work, residential is more cost-effective. ProxyGen lets you keep both on one balance and route by target, so you only pay mobile rates where they actually move the needle.
## How are mobile proxies priced?
ProxyGen bills mobile traffic pay-as-you-go per gigabyte with no subscription. Mobile costs more than residential because carrier IP supply is scarcer, but you only pay for the bandwidth you use, and you can verify pool quality with the free [proxy checker](/proxy-checker) first.
## Frequently asked questions
### What is a mobile proxy in simple terms? It is a way to send your traffic through a real phone's 4G or 5G carrier IP, so websites see an ordinary mobile user instead of a server or your own connection.
### Why are mobile proxies the hardest to block? Because many real subscribers share each carrier IP through CGNAT, blocking a mobile IP would also block legitimate phone users — so sites are far more cautious about banning them.
### Are mobile proxies better than residential proxies? Not universally. Mobile has higher trust but costs more and has a smaller pool. Residential is more cost-effective for most tasks; mobile wins on the strictest social and mobile-only targets.
### Can I target a country with a mobile proxy? Yes. ProxyGen mobile proxies support country-level targeting and sticky sessions, so you can hold one carrier identity through a multi-step flow.
### Do mobile proxies support sticky sessions? Yes. You can rotate on every request or hold the same mobile IP for a set window using session modifiers, which matters for logins and multi-step automation.