---
title: "CTM: MCC 455 MNC 01"
mcc: "455"
mnc: "01"
plmn: "45501"
tadig: "MACCT"
brand: "CTM"
operator: "Companhia de Telecomunicações de Macau, S.A.R.L."
country: "Macau"
country_iso: "MO"
region: "Asia & Middle East"
technologies: ["4G"]
updated: "2025-04-09"
canonical: "https://mcc-mnc.org/networks/455_01"
---

# CTM: MCC 455, MNC 01 (Macau)

**CTM** (operator: Companhia de Telecomunicações de Macau, S.A.R.L.) is a mobile network in [Macau](https://mcc-mnc.org/countries/macau.md) (Asia & Middle East), identified by MCC **455** and MNC **01**: PLMN ID 45501, also written 455-01 or 455 01, with the TADIG roaming code **MACCT**. It runs 4G. Calling: VoLTE: Likely.

## Identifiers

| Field | Value |
|---|---|
| MCC (Mobile Country Code) | 455 |
| MNC (Mobile Network Code) | 01 |
| PLMN ID (MCC+MNC) | 45501 |
| TADIG code | MACCT |
| Brand | CTM |
| Operator | Companhia de Telecomunicações de Macau, S.A.R.L. |
| Country | Macau (MO) |
| Region | Asia & Middle East |
| Dialling code | — |
| Technologies | 4G |
| Last updated | 2025-04-09 |

## Technologies & bands

| Generation | Bands | Measured cells |
|---|---|---|
| 4G | [LTE 1800](https://mcc-mnc.org/coverage/lte_1800.md) | 304 |
| 5G | No bands on file | 1 |

## 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 CTM

Companhia de Telecomunicações de Macau, S.A.R.L. (CTM), operating in Macau, is the primary telecommunications provider in the special administrative region of China. As the dominant player, CTM offers a comprehensive suite of communication services, including mobile, fixed-line, and internet solutions. For network identification purposes, CTM utilizes the Mobile Country Code (MCC) 455, which identifies it as operating in Macau, and the Mobile Network Code (MNC) 01. This MCC/MNC combination is crucial for mobile devices to correctly identify and connect to the CTM network.

CTM's presence in Macau's telecommunications landscape is significant, rivaling other providers in the region with its established infrastructure and wide range of services. While specific competitor information might vary, CTM holds a considerable market share, shaping the digital communication experience for individuals and businesses across Macau. The 455-01 MCC/MNC code ensures seamless roaming for international visitors and accurate network identification for locals, underscoring CTM's role in connecting Macau to the global network.

## APN settings

| Name | APN | Types | Protocol | MMSC | MMS proxy | MMS port | Source |
|---|---|---|---|---|---|---|---|
| CTM (Prepaid) | `ctmprepaid` | default, ia, mms, supl | IPV4V6 | `http://mms.wap.ctm.net:8002` | 192.168.99.3 | 8080 | AOSP, LineageOS |
| CTM Data | `ctm-mobile` | default, ia, supl | IPV4V6 | — | — | — | AOSP, LineageOS |
| CTM MMS | `ctmmms` | mms | IPV4V6 | `http://mms.wap.ctm.net:8002` | 192.168.99.3 | 8080 | AOSP, LineageOS |
| CTM IMS | `ims` | ims | IPV4V6 | — | — | — | AOSP, LineageOS |
| CTM XCAP | `XCAP` | xcap | — | — | — | — | AOSP, LineageOS |

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

## Cell towers

OpenCelliD has measured **305** cells on this network across 8 location/tracking areas, first seen 2016-03-25 and last seen 2026-07-12 (data as of 2026-09-27).

| Radio | Generation | Cells |
|---|---|---|
| LTE | 4G | 304 |
| NR | 5G | 1 |

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 Macau

| MCC | MNC | Network | TADIG |
|---|---|---|---|
| 455 | 00 | [SmarTone](https://mcc-mnc.org/networks/455_00.md) | MACSM |
| 455 | 02 | [China Telecom](https://mcc-mnc.org/networks/455_02.md) | — |
| 455 | 03 | [3](https://mcc-mnc.org/networks/455_03.md) | MACHT |
| 455 | 04 | [CTM](https://mcc-mnc.org/networks/455_04.md) | — |
| 455 | 05 | [3](https://mcc-mnc.org/networks/455_05.md) | — |
| 455 | 06 | [SmarTone](https://mcc-mnc.org/networks/455_06.md) | — |
| 455 | 07 | [China Telecom](https://mcc-mnc.org/networks/455_07.md) | — |

---

HTML version: https://mcc-mnc.org/networks/455_01 · Index for AI agents: https://mcc-mnc.org/llms.txt · Data is community-maintained; corrections welcome on the HTML page.