A Dedicated AT&T Proxy That Belongs to You Alone

A lot of proxy services sell access to a crowd. You connect, you get whatever address the pool hands out, and someone else may be using the same exit a minute later. ProxyMobile works the other way around. When you order an AT&T line, we assign you one physical device with one AT&T SIM card inside it, and that device serves your traffic only. Here is a calm, practical look at what that means day to day: what the hardware is, how to set it up, how the address behaves, and what to do when your needs change.

What sits on the other end of the line

Behind every dedicated AT&T proxy is a piece of real equipment in one of our US metro sites: a 4G or 5G USB modem, a 4G or 5G router, or an Android phone. You choose the hardware type at checkout, alongside the carrier, and availability depends on what is in stock in the metro you pick. The SIM is an ordinary AT&T SIM, so the address your traffic leaves from is an ordinary AT&T Mobility address, announced under AS20057.

Because nobody else is routed through your device, the history of that connection is your history. There is no neighbor on the same port burning through requests or triggering challenges. The phrase dedicated gets used loosely in this industry, so we try to be precise: one device, one SIM, one customer.

Your first hour with the line

After checkout, the line appears in your dashboard with a host, a port for HTTP(S), a port for SOCKS5, a username and a password. Paste those into your browser profile, script or app. If the software supports UDP over SOCKS5, that is available too. A quick way to confirm everything is working is to open any IP lookup page through the proxy. You should see AT&T listed as the network owner and a location matching the metro you ordered.

Take a moment to note one exception before you worry. If you ordered from our Boston site, an AT&T address there is usually placed in New York by geolocation databases. That is normal for the carrier's routing and not a misconfiguration on your line. If you need an address that reads as Boston, a Boston Verizon line is the one to pick.

How the AT&T address behaves over time

By default your line holds its address in a sticky session. It will not change until you ask it to. When you want a new one, open your rotation link or call the API, and the device reconnects to AT&T and picks up a fresh address. You can do that as often as you like, and there is no waiting period between changes. If your workflow prefers it, per-request rotation mode is available too.

It helps to know where those new addresses come from. AT&T hands out public addresses from a regional pool shared by its subscribers through carrier-grade NAT. The pool is large but it is not bottomless, so an address you saw in the morning may come round again in the evening. That is expected. It is also why sites tend to judge a mobile session by how it behaves rather than by the address alone, since the same address may carry many real customers at once.

On speed, a 4G line typically runs between 20 and 45 Mbps and a 5G line usually 50 Mbps or more, depending on the signal at the site. AT&T markets its faster mid-band and mmWave service as 5G+, but what you actually get on a given line comes down to local conditions.

Plans for a single AT&T line

Pricing is per line and the same whichever carrier you choose. Every plan includes 15 GB per day. The daily plan is handy for a short task or for trying the service. The weekly and monthly plans suit ongoing work where you want the same device and the same stable setup for a longer stretch. You can pay with a card through Stripe checkout, PayPal, Bitcoin, USDT, Ethereum, Zelle or a bank wire.

When the line needs to change

Needs shift. If your project moves to another region, you can relocate the line to a different metro yourself from the dashboard at no charge, as long as the destination has AT&T hardware available. Miami and North Carolina lean toward AT&T, so they are good places to look. If you decide a different carrier suits the work better, add a line on T-Mobile or Verizon at checkout; your existing setup stays exactly as it is. If anything feels off, support is open 24/7 by email and through our Telegram bot, and it is always quicker to ask than to guess.

AT&T proxy questions