---
title: "M1: MCC 525 MNC 03"
mcc: "525"
mnc: "03"
plmn: "52503"
tadig: "SGPM1"
brand: "M1"
operator: "M1 Limited"
country: "Singapore"
country_iso: "SG"
region: "Oceania"
technologies: ["3G", "4G"]
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/525_03"
---

# M1: MCC 525, MNC 03 (Singapore)

**M1** (operator: M1 Limited) is a mobile network in [Singapore](https://mcc-mnc.org/countries/singapore.md) (Oceania), identified by MCC **525** and MNC **03**: PLMN ID 52503, also written 525-03 or 525 03, with the TADIG roaming code **SGPM1**. It runs 3G and 4G. Calling: VoLTE: Likely.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 525 |
| MNC (Mobile Network Code) | 03 |
| PLMN ID (MCC+MNC) | 52503 |
| TADIG code | SGPM1 |
| Brand | M1 |
| Operator | M1 Limited |
| Country | Singapore (SG) |
| Region | Oceania |
| Dialling code | — |
| Technologies | 3G, 4G |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| 2G | No bands on file | 84 |
| 3G | [UMTS 2100](https://mcc-mnc.org/coverage/umts_2100.md), [UMTS 900](https://mcc-mnc.org/coverage/umts_900.md) | 11,941 |
| 4G | [LTE 1800](https://mcc-mnc.org/coverage/lte_1800.md), [LTE 2600](https://mcc-mnc.org/coverage/lte_2600.md) | 234 |
| 5G | No bands on file | 240 |

## Voice & calling services

| Service | Status | Source |
|---|---|---|
| VoLTE | Likely | Network publishes an IMS APN |
| 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 M1

M1 Limited, commonly known as M1, is a leading mobile network operator in Singapore, part of the Oceania region. Identified globally with the Mobile Country Code (MCC) 525, which signifies Singapore, and the Mobile Network Code (MNC) 03, M1 provides a comprehensive suite of communication services to both consumers and businesses.  As one of the major players in Singapore's telecommunications sector, alongside Singtel and StarHub, M1 has consistently innovated to offer cutting-edge mobile technology solutions, including advanced 5G connectivity.

Since its inception, M1 has played a pivotal role in shaping Singapore's mobile landscape. It differentiated itself early on by focusing on customer experience and data-centric plans. The company has invested significantly in its network infrastructure, ensuring robust coverage and high-speed internet access throughout the island nation, a key differentiating factor in the competitive Singaporean market.  M1’s commitment extends beyond just connectivity; they actively participate in various corporate social responsibility initiatives, emphasizing their dedication to the Singaporean community and sustainable business practices and the broader Oceanic region.

## APN settings

| Name | APN | Types | Protocol | Username | Password | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|---|---|
| Sunsurf Mobile | `sunsurf` | default, ia, supl | IPV4V6 | — | — | — | — | — | AOSP, LineageOS |
| M1 MMS | `miworld` | mms | — | `65` | `user123` | `http://mmsgw:8002` | 172.16.14.10 | 8080 | AOSP, LineageOS |
| M1 IMS | `IMS` | ims | IPV4V6 | — | — | — | — | — | AOSP, LineageOS |
| M1 hos | `hos` | xcap | IPV4V6 | — | — | — | — | — | AOSP, LineageOS |
| M1 XCAP | `XCAP` | xcap | IPV4V6 | — | — | — | — | — | AOSP, LineageOS |

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

## Cell towers

OpenCelliD has measured **12,499** cells on this network across 194 location/tracking areas, first seen 2013-04-30 and last seen 2026-08-23 (data as of 2026-09-27).

| Radio | Generation | Cells |
|---|---|---|
| GSM | 2G | 84 |
| UMTS | 3G | 11,941 |
| LTE | 4G | 234 |
| NR | 5G | 240 |

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 Singapore

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 525 | 01 | [SingTel](https://mcc-mnc.org/networks/525_01.md) | SGPST |
| 525 | 02 | [SingTel G18](https://mcc-mnc.org/networks/525_02.md) | SGPML |
| 525 | 05 | [StarHub](https://mcc-mnc.org/networks/525_05.md) | SGPSH |
| 525 | 06 | [StarHub](https://mcc-mnc.org/networks/525_06.md) | — |
| 525 | 07 | [SingTel](https://mcc-mnc.org/networks/525_07.md) | — |
| 525 | 08 | [StarHub](https://mcc-mnc.org/networks/525_08.md) | SGPMM |
| 525 | 09 | [Circles Life](https://mcc-mnc.org/networks/525_09.md) | — |
| 525 | 10 | [TPG Telecom Pte Ltd](https://mcc-mnc.org/networks/525_10.md) | — |
| 525 | 11 | [M1](https://mcc-mnc.org/networks/525_11.md) | — |
| 525 | 12 | [Grid](https://mcc-mnc.org/networks/525_12.md) | — |

---

HTML version: https://mcc-mnc.org/networks/525_03 · Index for AI agents: https://mcc-mnc.org/llms.txt · Data is community-maintained; corrections welcome on the HTML page.