Where can I buy US mobile proxies on T-Mobile, AT&T or Verizon?

What is a US mobile proxy?

A US mobile proxy sends your requests through a 4G/5G modem on a T-Mobile, AT&T or Verizon SIM, so websites see a carrier IP. With FiftyStateProxy, a dedicated port means one modem for one customer. Use your port from several of your own devices and tools at the same time; bandwidth is shared between them. Reselling or sharing access with third parties is not allowed. Proxy (data) access only: no SMS, no calls, and no direct access to the SIM card or the device.

How much do US mobile proxies cost?

As of October 2026, a dedicated FiftyStateProxy port rents for $3.75 a day, $15 a week or $45 a month (30 days). The price is the same on T-Mobile, AT&T and Verizon. A 30-day port costs 60% less per day than a 1-day port; renting 30 single days would cost 2.5 times as much. Every product sits on one page: how much do US mobile proxies cost.

What does rotating US mobile traffic cost per GB?

Rotating US mobile traffic costs $2.99 for 1 GB and $1.50/GB on the 50 GB and 100 GB plans, about half the 1 GB rate. Each connection draws a US mobile IP from a shared pool. Prepaid residential and rotating-mobile traffic never expires: unused GB stay on your account until you use them.

At $1.50/GB, a $45 30-day port breaks even at 30 GB: above that monthly volume, the dedicated port is cheaper. Per-GB billing suits light or irregular use, since unused rotating traffic never expires.

How do I change the IP of a US mobile port?

Open the rotation link or call the API, and the port reconnects to its carrier with a new IP. New IP on demand by rotation link or API call, at most once every 30 seconds. On 7-day and 30-day ports, you can also set an automatic rotation timer, from every 2 minutes to every 24 hours. Otherwise your port keeps its IP until you rotate it, although the carrier can change it on its own from time to time. Each rotation reconnects your port to the carrier and usually takes 5–15 seconds; the carrier may occasionally hand back the same IP: just rotate again. Scripts, cron jobs and browser tools can all call the same link. The full walk-through is in how to rotate a mobile proxy IP.

# 1. Ask for a new IP (link shown in your dashboard)
curl "https://fiftystateproxy.com/api/v1/mobile/{port}/rotate?key=API_KEY"

# 2. Wait a few seconds, then read the new exit IP through the port
curl -x http://USERNAME:PASSWORD@PORT_HOST:PORT https://api.ipify.org

Why do websites treat mobile IPs differently?

Websites are slow to block a mobile IP because a carrier shares each public address among many subscribers. The technique is carrier-grade NAT (CGNAT); its internal range, 100.64.0.0/10, is set aside by RFC 6598. Per Cloudflare (October 2025), a single shared IPv4 address "may represent hundreds or even thousands of users".

Blocking such an address would lock out real customers. The same Cloudflare study also shows that CGNAT addresses hit rate limits roughly three times as often. Space out requests and stay within each site's terms.

What can I use a US mobile proxy for?

US mobile proxies suit jobs that need a real carrier connection or one stable IP for hours. Typical uses:

• Social media management: an agency runs its clients' accounts, one stable carrier IP per client.
• App and mobile-site QA: test your own app on T-Mobile, AT&T or Verizon.
• Mobile ad verification: check which ads US carrier customers are shown.
• Mobile search checks: read Google results as a phone on a US network.

Blocked on every plan: Banking, government and payment-portal sites, plus SMTP (email-sending) ports 25, 465 and 587.

Who else sells US mobile proxies?

Several providers rent US mobile ports, and they differ on price, daily data caps, KYC and payment methods. Bright Data has left this market: "Bright Data discontinued its mobile proxy product in April 2026", per Proxyway's 2026 market research. Our best US mobile proxies ranking compares providers side by side. The US proxy price index tracks prices per day and per GB.