---
title: "A1: MCC 284 MNC 01"
mcc: "284"
mnc: "01"
plmn: "28401"
tadig: "BGR01"
brand: "A1"
operator: "A1 Bulgaria"
country: "Bulgaria"
country_iso: "BG"
region: "Europe"
technologies: ["2G", "3G", "4G"]
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/284_01"
---

# A1: MCC 284, MNC 01 (Bulgaria)

**A1** (operator: A1 Bulgaria) is a mobile network in [Bulgaria](https://mcc-mnc.org/countries/bulgaria.md) (Europe), identified by MCC **284** and MNC **01**: PLMN ID 28401, also written 284-01 or 284 01, with the TADIG roaming code **BGR01**. It runs 2G, 3G and 4G.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 284 |
| MNC (Mobile Network Code) | 01 |
| PLMN ID (MCC+MNC) | 28401 |
| TADIG code | BGR01 |
| Brand | A1 |
| Operator | A1 Bulgaria |
| Country | Bulgaria (BG) |
| Region | Europe |
| Dialling code | — |
| Technologies | 2G, 3G, 4G |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| 2G | [GSM 1800](https://mcc-mnc.org/coverage/gsm_1800.md), [GSM 900](https://mcc-mnc.org/coverage/gsm_900.md) | 52 |
| 3G | [UMTS 2100](https://mcc-mnc.org/coverage/umts_2100.md), [UMTS 900](https://mcc-mnc.org/coverage/umts_900.md) | 197 |
| 4G | [LTE 1800](https://mcc-mnc.org/coverage/lte_1800.md), [LTE 2100](https://mcc-mnc.org/coverage/lte_2100.md), [LTE 900](https://mcc-mnc.org/coverage/lte_900.md) | 6,416 |
| Other | [TETRA](https://mcc-mnc.org/coverage/tetra.md), [TETRA 380](https://mcc-mnc.org/coverage/tetra_380.md) | — |

## 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 A1

A1 Bulgaria, operating under Mobile Country Code (MCC) 284 and Mobile Network Code (MNC) 01, stands as one of Bulgaria's leading mobile network providers. Part of the A1 Telekom Austria Group, A1 Bulgaria offers comprehensive telecommunications services, including mobile voice and data, fixed broadband, and digital television. The company has invested significantly in its network infrastructure, including advanced 4G LTE and increasingly, 5G deployments, striving to provide reliable and high-speed connectivity across Bulgaria. Its geographic coverage extends to major urban centers like Sofia, Plovdiv, Varna, and Burgas, as well as many rural areas throughout the country.

Competing primarily with Telenor Bulgaria (now PPF Telecom Group) and Vivacom, A1 Bulgaria distinguishes itself with a focus on innovation and customer-centric services. This includes offering a wide range of data plans, bundled service packages, and digital entertainment options. They have actively participated in the digital transformation of Bulgaria, driving the adoption of mobile technologies amongst consumers and businesses. A1 Bulgaria also plays a role in supporting the Bulgarian economy, providing connectivity solutions for various sectors and contributing to technological advancement within the nation which is member of the European Union, located in Southeastern Europe.

## APN settings

| Name | APN | Types | Protocol | Username | Password | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|---|---|
| A1 | `internet.a1.bg` | default, ia, supl | — | — | — | — | — | — | AOSP |
| M-Tel Internet | `inet-gprs.mtel.bg` | default, supl | — | — | — | — | — | — | LineageOS |
| A1 MMS | `mms.a1.bg` | mms | — | `mtel` | `mtel` | `http://mmsc/` | 10.150.0.33 | 8080 | AOSP |
| M-Tel MMS | `mms-gprs.mtel.bg` | mms | — | `mtel` | `mtel` | `http://mmsc/` | 10.150.0.33 | 8080 | LineageOS |

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

## Cell towers

OpenCelliD has measured **6,665** cells on this network across 74 location/tracking areas, first seen 2009-09-05 and last seen 2026-09-15 (data as of 2026-09-27).

| Radio | Generation | Cells |
|---|---|---|
| GSM | 2G | 52 |
| UMTS | 3G | 197 |
| LTE | 4G | 6,416 |

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 Bulgaria

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 284 | 03 | [Vivacom](https://mcc-mnc.org/networks/284_03.md) | — |
| 284 | 05 | [Telenor](https://mcc-mnc.org/networks/284_05.md) | BGRCM |
| 284 | 07 | [НКЖИ](https://mcc-mnc.org/networks/284_07.md) | — |
| 284 | 09 | [COMPATEL LIMITED](https://mcc-mnc.org/networks/284_09.md) | — |
| 284 | 11 | [Bulsatcom](https://mcc-mnc.org/networks/284_11.md) | — |
| 284 | 13 | [Ти ком](https://mcc-mnc.org/networks/284_13.md) | — |

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