AT&T Mobile Proxies from Our Miami Rack

AT&T is the carrier we stock deepest in Miami. Walk down the rack and most of the modems and phones on the shelves carry an AT&T SIM, because that is what South Florida customers and the Latin America teams who work through Miami ask for most. Here is what an AT&T line from Florida Proxies looks like to the outside world and how to decide if it is the right one for you.

What a website sees when you connect

Every request through your line leaves from an address that AT&T assigned to the SIM in your device. A site that looks the address up gets AT&T Mobility LLC, autonomous system AS20057, the same owner that iPhones and Android phones all over Florida show. Reverse lookups, IP reputation services and the fraud scoring tools most platforms rent all classify it as a mobile carrier address, which is a different class from a data centre range or a home cable connection.

The address is shared. AT&T puts many phones behind one public address with carrier-grade NAT, so whatever a site sees from your line, it also sees from real subscribers browsing on the sand in Miami Beach or sitting in traffic on I-95. That is the whole reason mobile addresses get treated gently: blocking one would block a crowd of paying phone customers.

Reading as Miami and Florida

Our AT&T SIMs are registered and active in Miami-Dade County and they connect through AT&T's South Florida network. The main geolocation databases place the addresses in Miami or the wider Miami-Fort Lauderdale area, and the state is Florida. Time zone is Eastern. If your work needs a Florida presence, whether that is a store locator, a regional price check, a local ad placement or a Spanish-language campaign aimed at the Miami market, the address matches the story.

One honest note: carrier geolocation is maintained by the carriers and the database companies, not by us. A small share of lookups may name another Florida city or occasionally a neighbouring state, because AT&T's regional pool stretches beyond one city. We see this rarely on AT&T in Miami, and a fresh address from rotation usually clears it.

4G and 5G on AT&T

We run AT&T lines in two flavours. 4G LTE lines sit in USB modems and cellular routers and typically deliver 20 to 45 Mbps, which covers browsing, account work, light scraping and most automation with room to spare. 5G lines use 5G-capable routers and Android phones and typically land at 50 Mbps and up, with lower latency, which matters for anything interactive or video-heavy.

AT&T's 5G coverage in Miami is strong, so 5G lines here hold their speed well through the day. Evenings in busy neighbourhoods are slower on every carrier, and a tower upgrade can change things for a week. If you need the extra headroom, pick 5G; if the job is steady and modest, 4G is the better value.

Rotation on an AT&T line

A line is sticky by default: your address stays the same for as long as AT&T keeps the data session alive, which can be hours or days. When you want a new one, you ask for it. The dashboard has a button, every line has a private rotation link you can call from anywhere, the API has an endpoint, and you can set a timer so the line rotates itself every few minutes or hours. Rotation drops and re-registers the data session, and AT&T hands out an address from its pool.

Because the pool is finite and shared, a new address can be one you have had before, and the carrier may change your address on its own in between rotations. Both are normal for every mobile carrier and both are part of why the addresses look like phones.

Who picks AT&T

Teams running ad verification or price checks across the Southeast, who want the carrier the most Floridians actually use. Agencies that manage social and marketplace accounts for Latin American brands and need a US mobile footprint on the Miami side of the bridge. App testers who need to see what an AT&T customer in Florida sees. People who have simply found that AT&T addresses behave well on the sites they care about and want more of them.

If you are not sure which carrier to start with, start with AT&T. It is the one we have most of, it is the one we have run the longest in Miami, and if it is not the right fit, support can move you to a free T-Mobile or Verizon device with your remaining time carried over.

Stock and plans

AT&T is the deepest stock in our Miami rack, so a free device is almost always available on both 4G and 5G. Checkout shows live availability; what you see there is what we have. Pricing is the same on every carrier: hourly from $2 for 2 hours on 4G or $3 on 5G, then the same per extra hour up to four hours; $5 or $6 for a day; $28 or $31 for a week; $65 or $75 for a month. Data is unlimited within fair use, rotation is unlimited, and activation is instant after payment.

Lines work over HTTP, HTTPS and SOCKS5 with UDP support, and we answer support around the clock by email at [email protected] and through @FloridaProxiesBot on Telegram.

AT&T proxy questions