Mobile Proxy

A mobile proxy routes traffic through an exit address associated with a cellular carrier network. The destination sees the public IP used by the carrier connection rather than the proxy client’s original address.

Mobile carriers commonly place many subscribers behind carrier-grade NAT. As a result, one public address may represent traffic from many unrelated devices over time. Destinations are often cautious about blocking such an address because a broad block could affect ordinary mobile users. This shared use can give carrier addresses high trust, but it can also make their history and performance less predictable.

A mobile proxy differs from a datacenter proxy in network ownership and access type. Datacenter exits come from hosting infrastructure, while mobile exits come from cellular networks. Mobile connections may change addresses as devices reconnect, move between network areas, or receive a new carrier assignment. Applications should not assume that a mobile exit will stay fixed unless the proxy service explicitly provides session persistence.

The use of a carrier address does not conceal browser behavior, TLS characteristics, cookies, or request patterns. Those signals remain available to a destination even when the source IP changes.

Related terms: CGNAT and datacenter proxy.