---
title: "byfly: MCC 257 MNC 05"
mcc: "257"
mnc: "05"
plmn: "25705"
brand: "byfly"
operator: "Beltelecom"
country: "Belarus"
country_iso: "BY"
region: "Europe"
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/257_05"
---

# byfly: MCC 257, MNC 05 (Belarus)

**byfly** (operator: Beltelecom) is a mobile network in [Belarus](https://mcc-mnc.org/countries/belarus.md) (Europe), identified by MCC **257** and MNC **05**: PLMN ID 25705, also written 257-05 or 257 05.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 257 |
| MNC (Mobile Network Code) | 05 |
| PLMN ID (MCC+MNC) | 25705 |
| TADIG code | — |
| Brand | byfly |
| Operator | Beltelecom |
| Country | Belarus (BY) |
| Region | Europe |
| Dialling code | — |
| Technologies | — |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| Other | [WiMAX 3500](https://mcc-mnc.org/coverage/wimax_3500.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 byfly

Beltelecom Byfly, operating in Belarus (Europe), represents a significant player in the mobile network infrastructure of the country. Officially recognized with Mobile Country Code (MCC) 257 and Mobile Network Code (MNC) 05, Byfly plays a vital role in connecting both urban and rural communities within Belarus. As a branch of the national telecommunications provider Beltelecom, Byfly leverages existing infrastructure to offer more competitive, and cost focused services to subscribers.

Byfly's significance can be understood in the context of Belarus' broader mobile landscape, where it competes with the likes of MTS Belarus and A1 Belarus. While detailed performance metrics and subscriber numbers aren't always readily available, Byfly contributes to the overall connectivity rate within Belarus. The MCC 257 identifies Belarus as the operating country, while the MNC 05 clearly designates Byfly within that national framework, which makes it easy to identify the network correctly on roaming devices and network scanning equipment. Understanding these codes is valuable for international travelers, network engineers, and anyone analyzing the telecommunications footprint in Belarus.

## Other networks in Belarus

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 257 | 01 | [A1](https://mcc-mnc.org/networks/257_01.md) | BLRMD |
| 257 | 02 | [MTS](https://mcc-mnc.org/networks/257_02.md) | BLR02 |
| 257 | 03 | [DIALLOG](https://mcc-mnc.org/networks/257_03.md) | — |
| 257 | 04 | [life:)](https://mcc-mnc.org/networks/257_04.md) | — |
| 257 | 06 | [beCloud](https://mcc-mnc.org/networks/257_06.md) | — |

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