Mobile proxy

A mobile proxy routes your internet traffic through a real device connected to a cellular network, so the website you reach sees an IP address assigned by a mobile carrier rather than your own. The device is physical hardware, a handset or modem with a live SIM in it, sitting on the same network an ordinary phone uses.

Why it matters when you buy proxies

Mobile IP addresses are expensive for a site to block, because they're shared with real people. Carriers put large numbers of subscribers behind the same public address using carrier-grade NAT, so refusing one mobile IP also refuses everyone else sitting behind it. That collateral damage is the reason mobile addresses survive filters that flag a datacenter proxy on sight.

The trade-offs are cost and speed. Real hardware and a real data plan sit behind every mobile IP, so it costs more per address than any other type, and traffic crosses a cellular link, so latency is higher than a server in a data center. Whether that link is 4G or 5G matters less than most buyers expect, which 5G vs 4G mobile proxies goes through.

A concrete example

You're managing five client accounts on one platform and each needs to look like a separate person. Through a mobile proxy, each session leaves from a T-Mobile or Verizon address that the platform sees millions of times a day from genuine phones. Through a datacenter proxy, all five leave from a hosting company's address range that the platform can identify in a single lookup.

For the longer walk-through of the hardware and the traffic path, read what a 5G mobile proxy is. For how carrier addresses compare with home-broadband ones, see mobile proxies vs residential proxies.