AT&T Lines for Marketers, Verification and QA Teams

AT&T is the carrier to pick when a check needs a steady, conservative US address that platforms treat gently and that will keep working through a dip in 5G signal. An AT&T line from Stateside Proxies is one AT&T SIM in a modem, router or phone we own in one of eight US metros, used by you alone, with unlimited data and rotation when you want it. This page is written for people who run campaigns and tests rather than networks: what AT&T looks like to the platforms you check, where its addresses geolocate and the one case to know about, how the address behaves over a working day, which checks suit it, and what it costs.

How platforms see an AT&T line

As a phone on AT&T's network. The address block is registered to AT&T Mobility under AS20057, reputation databases classify it as cellular, and ad platforms count it as mobile inventory. That is why a mobile-targeted campaign serves to it, why consent and geo rules treat it as a US visitor, and why sites do not greet it with the CAPTCHAs and generic pages they reserve for datacenter traffic. AT&T's fixed broadband is registered separately, so there is no confusion with a household connection.

Where AT&T addresses geolocate, and the Boston exception

AT&T sends mobile traffic through a small number of regional hubs, and databases attach an address to the hub's registered city. In most of our metros that hub is local, so a lookup reads the metro or a large neighbour in the same state. The exception is Boston: AT&T lines there read New York, because New England traffic exits through the New York hub, and even the state field reads New York. For a check that needs Boston or Massachusetts in the lookup, take Verizon or T-Mobile there. Everywhere else the state is reliable; the country is always the United States.

How the address behaves over a working day

Left alone, an AT&T address commonly holds for many hours, which suits a long QA session or a logged-in account. When you rotate, by button, link, API or timer, the hub assigns another address from its pool within seconds; repeats can happen because the pool is finite, and AT&T occasionally changes an address on its own when it resets a session. There is no limit on rotations. For verification work, rotate between sessions rather than during one.

5G and the LTE safety net

AT&T runs mid-band 5G in all eight metros over the widest LTE footprint of the three carriers. A 5G line runs up to 50 Mbps download and a 4G line up to 25 Mbps, with the normal variation of radio; eligible 5G lines take 5G+ for a 70 Mbps+ average. When 5G signal dips, the device falls back to LTE and keeps working, which is the safety net that makes AT&T the pick for monitors and sessions that must not drop.

Checks that suit AT&T

State-level ad verification, where a hub reading is no disadvantage. Geo QA keyed on the state: tax, consent notices, shipping rules. Long logged-in sessions and monitors that benefit from an address that rarely moves. Accounts that carry an AT&T phone number. Anything where a conservative address reputation matters more than the exact city in the lookup.

Metros and devices

AT&T SIMs are stocked in New York, Los Angeles, Chicago, Houston, Phoenix, Miami, Boston and North Carolina as the shelf allows, in USB modems, routers and Android phones chosen at checkout. The dashboard shows stock per device and metro before you pay. Set the browser profile's time zone to the metro and its language to US English.

What an AT&T line costs

The same as any carrier here: 4G at $5 a day, $27 a week or $65 a month; 5G at $6, $30 or $74; a two-hour look at $2 on 4G or $3 on 5G, up to four hours. 5G+ adds $2 a day, $5 a week or $15 a month on an eligible 5G line. HTTP(S) and SOCKS5 with UDP on every line, a VLESS link on server-based lines, unlimited data, free moves between metros.

AT&T proxy questions