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The CTM Carrier From Macao is denoted by codes: 455 04, 455 01. The followings IDs are called HNI (Home network identity). This code is created by the combination of two other Mobile Country Code (MCC) and Mobile Network Code (MNC). The first three numbers stand for the MCC and they are used in order to identify the region which the carried comes from (in the following example it’s Macao). The last numbers of the HNI code are equal with the MNC and this ID is given for the specific mobile network operator.

Besides CTM Macao has assigned country code + 853. This number + 853 is equal with international calling code and it’s simply the telephone dialing prefixes used for calling CTM numbers.
CTM uses 2 GSM bands, 1 UMTS bands, 2 and 0 CDMA bands.. You can read the specific frequency bands in the table below. All bands of the CTM are display in MHz units.
Another important information in CTM Macao architectures is the standard of used protocols. It also uses 4 protocols such as GSM, UMTS, LTE, CDMA. The ISO standard code of CTM is MO. You can see more info about this mobile network operator at https://www.ctm.net/. How to check CTM coverage? How to check if your phone will work in Macao?

FloppySend About
Name CTM
Company Companhia de Telecomunicacoes de Macau, S.A.R.L.
Country Macao flag Macao
Country ISO MO
Country code + 853
Carrier website https://www.ctm.net/
Carrier codes
  • 455 04
  • 455 01
Mobile prefix 6
Size of NSN 8
Number format

+853 6xx xxx xx

Coverage map Unknown
Subscribers 856 000 (December 2016)
GSM bands
  • 900 (E-GSM)
  • 1800 (DCS)
GSM protocols
  • EDGE
  • GPRS
UMTS bands
  • B1 (2100)
UMTS protocols
  • UTMS
LTE bands
  • B3 (1800+)
  • B40 (TD 2300)
LTE protocols
  • LTE
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