---
title: "AT&T: MCC 334 MNC 090"
mcc: "334"
mnc: "090"
plmn: "334090"
tadig: "MEXN3"
brand: "AT&T"
operator: "AT&T Mexico"
country: "Mexico"
country_iso: "MX"
region: "North America & Caribbean"
technologies: ["3G", "4G"]
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/334_090"
---

# AT&T: MCC 334, MNC 090 (Mexico)

**AT&T** (operator: AT&T Mexico) is a mobile network in [Mexico](https://mcc-mnc.org/countries/mexico.md) (North America & Caribbean), identified by MCC **334** and MNC **090**: PLMN ID 334090, also written 334-090 or 334 090, with the TADIG roaming code **MEXN3**. It runs 3G and 4G.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 334 |
| MNC (Mobile Network Code) | 090 |
| PLMN ID (MCC+MNC) | 334090 |
| TADIG code | MEXN3 |
| Brand | AT&T |
| Operator | AT&T Mexico |
| Country | Mexico (MX) |
| Region | North America & Caribbean |
| Dialling code | — |
| Technologies | 3G, 4G |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| 3G | [UMTS 1700](https://mcc-mnc.org/coverage/umts_1700.md) | 6,285 |
| 4G | [LTE 1700](https://mcc-mnc.org/coverage/lte_1700.md), [LTE 850](https://mcc-mnc.org/coverage/lte_850.md) | 597 |

## Voice & calling services

| Service | Status | Source |
|---|---|---|
| VoLTE | Unknown | — |
| VoWiFi | Unknown | — |
| ViLTE | Unknown | — |
| VoNR | Unknown | — |

A service not marked Supported or Not supported is unknown: no data either way, not a sign that the network lacks it.

## About AT&T

AT&T Mexico, operating within North America & Caribbean, provides mobile network services throughout Mexico. Identified by the Mobile Country Code (MCC) 334 and Mobile Network Code (MNC) 90, AT&T Mexico aims to deliver reliable connectivity to its subscribers. As one of the significant players in the Mexican telecommunications market it provides competition to other networks such as Telcel, and has invested heavily in expanding its 4G LTE and 5G coverage in recent years, particularly targeting major cities and tourist destinations. 

As well as it's direct-to-consumer services, AT&T Mexico also caters to businesses, offering enterprise-grade solutions for communication and data management. It's network infrastructure utilises the designated MCC and MNC to ensure seamless roaming for international visitors and supports various technologies to deliver voice, SMS, and high-speed data services across its coverage area. While it faces challenges inherent in the competitive Mexican mobile market, AT&T Mexico continues to innovate and adapt to the evolving needs of its customer base.

## APN settings

| Name | APN | Types | Protocol | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|
| Nextel Navegación | `wap.nexteldata.com.mx` | default, supl | — | — | — | — | LineageOS |
| Nextel MMS | `mms.nexteldata.com.mx` | mms | — | `http://3gmms.nexteldata.com.mx` | 129.192.129.104 | 8080 | LineageOS |
| Nextel Internet | `modem.nexteldata.com.mx` | dun | — | — | — | — | LineageOS |
| Nextel Localización | `location.nexteldata.com.mx` | supl | — | — | — | — | LineageOS |

Settings come from Android's AOSP and LineageOS APN lists and user corrections.

## APN settings: Other brands (brand not identified)

| Name | APN | Types | Protocol | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|
| Internet | `wap.attmex.mx` | default, ia | IPV4V6 | — | — | — | AOSP |
| MMS | `mms.attmex.mx` | mms | IPV4V6 | `http://mms.att.com.mx` | 129.192.129.104 | 8080 | AOSP |
| Location | `supl.attmex.mx` | supl | IPV4V6 | — | — | — | AOSP |
| Modem | `modem.attmex.mx` | dun | IPV4V6 | — | — | — | AOSP |

## Android carrier config highlights

| Setting | Value | Key |
|---|---|---|
| Allow emergency numbers in call log | Yes | `allow_emergency_numbers_in_call_log_bool` |
| Mmi two digit number pattern | #9 | `mmi_two_digit_number_pattern_string_array` |
| SIM country iso override | mx | `sim_country_iso_override_string` |
| Skip cf fail to disable dialog | Yes | `skip_cf_fail_to_disable_dialog_bool` |

## Cell towers

OpenCelliD has measured **6,882** cells on this network across 599 location/tracking areas, first seen 2016-03-24 and last seen 2026-09-17 (data as of 2026-09-27).

| Radio | Generation | Cells |
|---|---|---|
| UMTS | 3G | 6,285 |
| LTE | 4G | 597 |

Locate a single cell by MCC, MNC, LAC/TAC and cell ID with the https://mcc-mnc.org/cell-id-lookup tool, `GET /api/v1/cells` or the MCP `lookup_cell` tool. Cell data from OpenCelliD (https://opencellid.org), licensed CC BY-SA 4.0.

## Other networks in Mexico

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 334 | 001 | [Comunicaciones Digitales Del Norte, S.A. de C.V.](https://mcc-mnc.org/networks/334_001.md) | — |
| 334 | 010 | [AT&T](https://mcc-mnc.org/networks/334_010.md) | — |
| 334 | 020 | [Telcel](https://mcc-mnc.org/networks/334_020.md) | MEXTL |
| 334 | 030 | [Movistar](https://mcc-mnc.org/networks/334_030.md) | MEXMS |
| 334 | 040 | [Unefon](https://mcc-mnc.org/networks/334_040.md) | — |
| 334 | 050 | [AT&T / Unefon](https://mcc-mnc.org/networks/334_050.md) | MEXIU |
| 334 | 060 | [Servicios de Acceso Inalambrico, S.A. de C.V.](https://mcc-mnc.org/networks/334_060.md) | — |
| 334 | 066 | [Telefonos de México, S.A.B. de C.V.](https://mcc-mnc.org/networks/334_066.md) | — |
| 334 | 070 | [Unefon](https://mcc-mnc.org/networks/334_070.md) | — |
| 334 | 080 | [Unefon](https://mcc-mnc.org/networks/334_080.md) | — |
| 334 | 100 | [Telecomunicaciones de México](https://mcc-mnc.org/networks/334_100.md) | — |
| 334 | 110 | [Maxcom Telecomunicaciones, S.A.B. de C.V.](https://mcc-mnc.org/networks/334_110.md) | — |
| 334 | 120 | [Quickly Phone, S.A. de C.V.](https://mcc-mnc.org/networks/334_120.md) | — |
| 334 | 130 | [Axtel, S.A.B. de C.V.](https://mcc-mnc.org/networks/334_130.md) | — |
| 334 | 140 | [Nextel](https://mcc-mnc.org/networks/334_140.md) | MEXAL |
| 334 | 150 | [Ultranet](https://mcc-mnc.org/networks/334_150.md) | — |

---

HTML version: https://mcc-mnc.org/networks/334_090 · Index for AI agents: https://mcc-mnc.org/llms.txt · Data is community-maintained; corrections welcome on the HTML page.