---
title: "Oi: MCC 724 MNC 31"
mcc: "724"
mnc: "31"
plmn: "72431"
tadig: "BRATM"
brand: "Oi"
operator: "TNL PCS Oi"
country: "Brazil"
country_iso: "BR"
region: "South & Central America"
technologies: ["2G", "3G", "4G"]
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/724_31"
---

# Oi: MCC 724, MNC 31 (Brazil)

**Oi** (operator: TNL PCS Oi) is a mobile network in [Brazil](https://mcc-mnc.org/countries/brazil.md) (South & Central America), identified by MCC **724** and MNC **31**: PLMN ID 72431, also written 724-31 or 724 31, with the TADIG roaming code **BRATM**. It runs 2G, 3G and 4G.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 724 |
| MNC (Mobile Network Code) | 31 |
| PLMN ID (MCC+MNC) | 72431 |
| TADIG code | BRATM |
| Brand | Oi |
| Operator | TNL PCS Oi |
| Country | Brazil (BR) |
| Region | South & Central America |
| 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) | — |
| 3G | [UMTS 2100](https://mcc-mnc.org/coverage/umts_2100.md) | — |
| 4G | [LTE 1800](https://mcc-mnc.org/coverage/lte_1800.md), [LTE 2600](https://mcc-mnc.org/coverage/lte_2600.md), [LTE 2100](https://mcc-mnc.org/coverage/lte_2100.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 Oi

TNL PCS Oi Oi, operating in Brazil and identifiable by its Mobile Country Code (MCC) 724 and Mobile Network Code (MNC) 31, is a significant player in South America's telecommunications landscape. Brazil, a nation renowned for its vibrant culture and economic dynamism, relies heavily on robust mobile networks to power its connectivity. TNL PCS Oi Oi contributes to this infrastructure, offering mobile services to a substantial portion of the Brazilian populace. While details regarding specific coverage areas, technology (e.g., 4G, 5G), and subscriber base for TNL PCS Oi Oi are constantly evolving, its presence adds to the competitive environment alongside other major Brazilian mobile operators. Its MCC/MNC combination (724 31) allows mobile devices to correctly identify and connect to the network within Brazil.

The Brazilian mobile market is highly competitive, with a handful of major operators vying for market share. TNL PCS Oi Oi, despite not always being the largest, plays a key role in providing alternative options for consumers. Understanding the MCC (724) is crucial for international travelers and device manufacturers ensuring compatibility within Brazil, while MNC (31) specifically pinpoints TNL PCS Oi Oi. As mobile technology progresses across South and Central America, the continued importance of well-defined and globally recognized MCC/MNC values (like 724 31) cannot be overstated, facilitating seamless roaming and device operation.

## APN settings

| Name | APN | Types | Protocol | Username | Password | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|---|---|
| Oi Internet | `gprs.oi.com.br` | default, ia, supl | IPV4V6 | — | — | — | — | — | AOSP |
| Oi Internet | `gprs.oi.com.br` | default, ia, supl | IPV4V6 | `oi` | `oi` | — | — | — | LineageOS |
| Oi MMS | `mmsgprs.oi.com.br` | mms | IPV4V6 | `oimms` | `oioioi` | `http://200.222.42.204:8002` | 192.168.10.50 | 3128 | AOSP |
| Oi MMS | `mmsgprs.oi.com.br` | mms | IPV4V6 | `oimms` | `oioioi` | `http://200.222.42.204:8002/` | 192.168.10.50 | 3128 | LineageOS |

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

## Android carrier config highlights

| Setting | Value | Key |
|---|---|---|
| Show 4G for LTE data icon | Yes | `show_4g_for_lte_data_icon_bool` |

## Other networks in Brazil

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 724 | 00 | [Nextel](https://mcc-mnc.org/networks/724_00.md) | — |
| 724 | 01 | [SISTEER DO BRASIL TELECOMUNICAÇÔES](https://mcc-mnc.org/networks/724_01.md) | — |
| 724 | 02 | [TIM](https://mcc-mnc.org/networks/724_02.md) | BRARN |
| 724 | 03 | [TIM](https://mcc-mnc.org/networks/724_03.md) | BRASP |
| 724 | 04 | [TIM](https://mcc-mnc.org/networks/724_04.md) | BRACS |
| 724 | 05 | [Claro](https://mcc-mnc.org/networks/724_05.md) | BRACL |
| 724 | 06 | [Vivo](https://mcc-mnc.org/networks/724_06.md) | BRAV2 |
| 724 | 10 | [Vivo](https://mcc-mnc.org/networks/724_10.md) | BRAV1 |
| 724 | 11 | [Vivo](https://mcc-mnc.org/networks/724_11.md) | BRAV3 |
| 724 | 15 | [Sercomtel](https://mcc-mnc.org/networks/724_15.md) | — |
| 724 | 16 | [Brasil Telecom GSM](https://mcc-mnc.org/networks/724_16.md) | BRABT |
| 724 | 17 | [Correios](https://mcc-mnc.org/networks/724_17.md) | — |
| 724 | 18 | [datora](https://mcc-mnc.org/networks/724_18.md) | — |
| 724 | 23 | [Vivo](https://mcc-mnc.org/networks/724_23.md) | BRATC |
| 724 | 24 | [Amazonia Celular](https://mcc-mnc.org/networks/724_24.md) | — |
| 724 | 28 | [No name](https://mcc-mnc.org/networks/724_28.md) | — |
| 724 | 30 | [Oi](https://mcc-mnc.org/networks/724_30.md) | — |
| 724 | 32 | [Algar Telecom](https://mcc-mnc.org/networks/724_32.md) | — |
| 724 | 33 | [Algar Telecom](https://mcc-mnc.org/networks/724_33.md) | — |
| 724 | 34 | [Algar Telecom](https://mcc-mnc.org/networks/724_34.md) | BRAC4 |
| 724 | 35 | [Telcom Telecomunicações](https://mcc-mnc.org/networks/724_35.md) | — |
| 724 | 36 | [Options Telecomunicações](https://mcc-mnc.org/networks/724_36.md) | — |
| 724 | 37 | [aeiou](https://mcc-mnc.org/networks/724_37.md) | — |
| 724 | 38 | [Claro](https://mcc-mnc.org/networks/724_38.md) | — |
| 724 | 39 | [Nextel](https://mcc-mnc.org/networks/724_39.md) | — |
| 724 | 54 | [Conecta](https://mcc-mnc.org/networks/724_54.md) | — |
| 724 | 70 | [iez!](https://mcc-mnc.org/networks/724_70.md) | — |
| 724 | 99 | [Local](https://mcc-mnc.org/networks/724_99.md) | — |

---

HTML version: https://mcc-mnc.org/networks/724_31 · Index for AI agents: https://mcc-mnc.org/llms.txt · Data is community-maintained; corrections welcome on the HTML page.