Companhia de Telecomunicações de Macau, S.A.
(CTM)
Macao, China · ISO MO
Network Details
- Operator (ITU)
- Companhia de Telecomunicações de Macau, S.A.
- Brand Name
- CTM
- Country
- Macao, China
- ISO Code
- MO
- MCC
- 455
- MNC
- 04
- PLMN
ITU Source
- Bulletin Number
- #1342
- Bulletin Date
- June 15, 2026
- Last Change
- Amended (LIR)
About PLMN 455-04
Companhia de Telecomunicações de Macau, S.A. (commonly known as CTM) is a mobile network operator in Macao, China assigned PLMN code 455-04 by the national telecommunications authority.
The MCC 455 identifies Macao, China, while MNC 04 uniquely identifies this operator within the country. Together they form the PLMN (Public Land Mobile Network) identifier used by mobile devices for network selection, SIM card identification, and international roaming.
This assignment was last reported in ITU Operational Bulletin #1342 (June 15, 2026). Search all MCC/MNC codes or view all Macao, China operators.
In this database the code first appears in ITU Operational Bulletin #1162 (December 15, 2018) and has 3 bulletin records in total. It is currently active.
Other mobile operators in Macao, China
5 other active operators · see all Macao, China MCC/MNC codes