# Where can I buy an AT&T mobile proxy in the USA?

> AT&T proxy on a dedicated 4G/5G modem with an AT&T SIM, from $3.75/day, fair-use unlimited data, new IP on demand. No KYC, pay in crypto.

- URL: https://fiftystateproxy.com/us-mobile-proxies/att/
- Last updated: 2026-10-29
- Publisher: FiftyStateProxy (https://fiftystateproxy.com)

A 4G/5G modem on an AT&T SIM for your traffic alone, rented by the day, week or month.

**Quick answer — Where can I buy an AT&T mobile proxy in the USA?**

**FiftyStateProxy** rents an AT&T proxy as a dedicated 4G/5G modem on an AT&T SIM, from $3.75/day; 30 days cost $45 at October 2026 prices. Of the three national carriers, AT&T posted the best time on network, 99.6%, in the January 2026 Opensignal report. The IP changes by link, API or timer, and data is unlimited under fair use. No KYC — no ID, no selfie, no documents. Pay in crypto.

## AT&T proxy at a glance

| Attribute | Value |
| --- | --- |
| Carrier | AT&T Mobility |
| Mobile ASN (RIPEstat, 2026-10-05) | AS20057 — "ATT-MOBILITY-LLC" (AT&T Enterprises, LLC) |
| IPv4 announced (Hurricane Electric, 2026-10-05) | 4,051,200 addresses on AS20057 |
| AT&T home network | AS7018 (AT&T Fiber and fixed lines), a different ASN from the mobile network |
| Time on network | 99.6%, highest of the three US carriers (Opensignal, January 2026) |
| Network type | 4G LTE or 5G, depending on carrier coverage at the modem location |
| Price | 1 day $3.75 · 7 days $15 · 30 days $45 (October 2026 prices) |
| Data | Unlimited data on your dedicated port, under fair use: the carrier may slow or pause very heavy use. One customer per modem, no resale |
| IP change | 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 |
| Rotation link | `https://fiftystateproxy.com/api/v1/mobile/{port}/rotate?key=API_KEY` |
| Stock | Dedicated ports are subject to stock per country and carrier; the checkout lists the carriers in stock. If we cannot deliver your port within 24 hours, its full price goes back to your balance |
| KYC | No KYC — no ID, no selfie, no documents. Pay in crypto. |
| Updated | October 29, 2026 |

## How much does an AT&T proxy cost?

Renting an AT&T port from FiftyStateProxy costs $3.75 a day, $15 a week or $45 for 30 days (October 2026 prices). **A 7-day AT&T port costs the same as 4 one-day ports, so days five to seven add nothing to the bill.** Weekly and monthly ports add the automatic rotation timer on top. Prices do not change with the carrier; see [how much does an AT&T proxy cost](https://fiftystateproxy.com/pricing/ "US mobile port prices per day, week and month") for every plan.

### AT&T port plans

| Plan | Quantity | Price | Price per unit |
| --- | --- | --- | --- |
| US · 1 day | 1 port · 1 day | $3.75 | $3.75/day |
| US · 7 days | 1 port · 7 days | $15 | $2.14/day |
| US · 30 days | 1 port · 30 days | $45 | $1.50/day |

In every plan: Carriers (US): T-Mobile, AT&T, Verizon · Data: Unlimited on a dedicated port, under fair use · IP rotation: Link or API; timer on 7-day and 30-day ports

**Before you pay**

- Minimum top-up $25. Top up once in crypto, then buy any plan from your balance.
- Unused balance stays on your account and never expires. When a purchase costs less than the minimum top-up, the part added only to reach the minimum is refundable on request to support within 30 days of the payment, in USDT or USDC, as long as it has not been spent. The rest of the balance is not paid back, except where the law requires it.
- Credited once your payment is checked on the blockchain. Typical network confirmation time: BTC ≈ 20 min · USDT TRC-20 ≈ 1 min · USDT ERC-20 ≈ 5 min · USDC ERC-20 ≈ 5 min · ETH ≈ 5 min · SOL ≈ 1 min · LTC ≈ 15 min

## How reliable is AT&T's mobile network in 2026?

Opensignal put AT&T first for time on network in January 2026, at 99.6%; Verizon scored 99.5% and T-Mobile 99.1%. **For a proxy port, staying connected matters more than peak speed, because every dropped connection breaks the session running through it.**

AT&T is not the speed leader. It took 1 Opensignal award, while T-Mobile took 12 and Verizon 3, over September 1 to November 29, 2025. Ookla's H1 2026 results named T-Mobile the fastest mobile network and Verizon the best for coverage. These figures describe AT&T's network, not a FiftyStateProxy port.

## Is AT&T's mobile ASN different from its home internet ASN?

Yes. AT&T's mobile network is AS20057, while AT&T Fiber and its other fixed lines sit on AS7018. Hurricane Electric's BGP Toolkit counted 97,381,376 IPv4 addresses on AS7018 and 4,051,200 on AS20057 (checked 2026-10-05). **AS7018 announces about 24 times more IPv4 addresses than AS20057, AT&T's mobile network.**

The fixed side keeps growing. On February 2, 2026, AT&T closed its purchase of 95% of Lumen's Quantum Fiber for $5.75 billion.

- **For an AT&T Mobility IP:** rent an AT&T mobile port.
- **For an AT&T Fiber home IP:** buy [US residential proxies with ASN targeting](https://fiftystateproxy.com/us-residential-proxies/ "US residential proxies with state, city, ZIP and ASN targeting") and add `asn-7018`.

## Which brands use AT&T's mobile network?

AT&T's mobile network carries Cricket and FirstNet. Their traffic leaves through AT&T, so websites see it as AT&T mobile traffic.

## Why do many AT&T users share one public IP?

Mobile networks put many subscribers behind each public IPv4 address. The method is called carrier-grade NAT (CGNAT), and RFC 6598 is the standard that reserves the 100.64.0.0/10 block for it. A website that blocks one shared address can shut out many real AT&T customers at once. Cloudflare reported in October 2025 that shared addresses hit rate limits roughly three times as often, so keep request rates moderate.

## How do I get a new AT&T IP?

Hit the rotation link, or let the timer of a 7-day or 30-day port do it for you. 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. The Node.js example below rotates the port and prints the new IP. For curl, Python and timer settings, see [how to rotate a mobile proxy IP](https://fiftystateproxy.com/how-to-rotate-a-mobile-proxy-ip/ "Rotate a 4G/5G proxy IP by link, API or timer").

*Rotate an AT&T port in Node.js*

```javascript
// Node 18+ with undici (npm i undici)
import { request, ProxyAgent } from "undici";

await request("https://fiftystateproxy.com/api/v1/mobile/{port}/rotate?key=API_KEY");          // ask AT&T for a new IP
await new Promise((done) => setTimeout(done, 15000));  // reconnect pause

const port = new ProxyAgent("http://USERNAME:PASSWORD@PORT_HOST:PORT");
const { body } = await request("https://api.ipify.org", { dispatcher: port });
console.log("AT&T exit IP:", await body.text());
```

## When is AT&T the right carrier for a proxy?

Pick AT&T when a session must stay up for hours, such as running a client's social accounts or a long app test. Pick a [T-Mobile proxy](https://fiftystateproxy.com/us-mobile-proxies/t-mobile/ "Dedicated T-Mobile 5G mobile port") for raw 5G speed, or a [Verizon proxy](https://fiftystateproxy.com/us-mobile-proxies/verizon/ "Dedicated Verizon 4G/5G mobile port") for coverage. The three carriers are compared line by line in [T-Mobile vs AT&T vs Verizon proxies](https://fiftystateproxy.com/t-mobile-vs-att-vs-verizon-proxies/ "Which US carrier to pick for a mobile proxy").

## AT&T proxy: FAQ

### How much is an AT&T mobile proxy for a week?

A 7-day AT&T port costs $15, as of October 2026, the price of four 1-day ports. It includes unlimited data under fair use and the automatic rotation timer.

### Does an AT&T proxy use AT&T Fiber IPs?

No. A mobile port uses AT&T's mobile network, AS20057. AT&T Fiber home IPs sit on AS7018 and can be requested on FiftyStateProxy residential plans with `asn-7018`.

### Do Cricket subscribers use AT&T IPs?

Yes. Cricket runs on AT&T's network, so its subscribers reach websites from AT&T mobile addresses.

### Can an AT&T port change its IP automatically?

Yes, on 7-day and 30-day ports. 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.

### Do I need ID to rent an AT&T proxy?

No. An AT&T port is rented without ID, selfie or documents. You pay from a crypto balance (BTC, USDT, USDC, ETH, SOL, LTC), topped up from $25.

**Rent a dedicated AT&T 4G/5G port** Day, week or month, starting at $3.75/day; $45 covers 30 days. No KYC — no ID, no selfie, no documents. Pay in crypto. [Rent an AT&T 4G/5G port](https://fiftystateproxy.com/pricing/ "How much do US proxies cost?") · [Compare carriers](https://fiftystateproxy.com/t-mobile-vs-att-vs-verizon-proxies/ "T-Mobile vs AT&T vs Verizon proxies: which carrier should I pick?")

## Sources

1. [AS20057 overview (ATT-MOBILITY-LLC)](https://stat.ripe.net/data/as-overview/data.json?resource=AS20057) — RIPEstat (2026-10-05)
2. [AS7018 overview (AT&T)](https://stat.ripe.net/data/as-overview/data.json?resource=AS7018) — RIPEstat (2026-10-05)
3. [AS20057 AT&T Enterprises (Mobility)](https://bgp.he.net/AS20057) — Hurricane Electric BGP Toolkit (2026-10-05)
4. [AS7018 AT&T Enterprises](https://bgp.he.net/AS7018) — Hurricane Electric BGP Toolkit (2026-10-05)
5. [T-Mobile leads in Opensignal's 2026 U.S. mobile network report](https://broadbandbreakfast.com/t-mobile-leads-in-opensignals-2026-u-s-mobile-network-report/) — Broadband Breakfast (2026-01-13)
6. [Ookla: T-Mobile receives best mobile network in first half of 2026](https://broadbandbreakfast.com/ookla-t-mobile-receives-best-mobile-network-in-first-half-of-2026/) — Broadband Breakfast (2026-07-22)
7. [Lumen Technologies (Quantum Fiber sale to AT&T)](https://en.wikipedia.org/wiki/Lumen_Technologies) — Wikipedia (2026-10-05)
8. [List of mobile network operators in the United States](https://en.wikipedia.org/wiki/List_of_mobile_network_operators_in_the_United_States) — Wikipedia (2026-10-05)
9. [RFC 6598: IANA-Reserved IPv4 Prefix for Shared Address Space](https://www.rfc-editor.org/rfc/rfc6598) — RFC Editor (2026-10-05)
10. [Detecting CGN to reduce collateral damage](https://blog.cloudflare.com/detecting-cgn-to-reduce-collateral-damage/) — Cloudflare (2025-10-29)

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FiftyStateProxy: FiftyStateProxy is a US proxy provider: residential IPs in all 50 states and Washington, D.C. with state, city, ZIP code and ASN targeting, plus dedicated T-Mobile, AT&T and Verizon 4G/5G mobile ports. No KYC — no ID, no selfie, no documents. Pay in crypto.