ITU Operational Bulletin |
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No. 1230 |
15.X.2021 |
(Information received by 30 September 2021) ISSN 1564-5223 (Online) |
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E-mail: itumail@itu.int |
Standardization
Bureau (TSB) |
Radiocommunication Bureau (BR) |
GENERAL INFORMATION
Lists annexed to the ITU Operational Bulletin: Note from TSB
Approval of ITU-T Recommendations
Telephone Service:
Bhutan (Bhutan InfoComm and Media Authority (BICMA), Thimphu)
Morocco (Agence Nationale de Réglementation des Télécommunications (ANRT), Rabat)
Zambia (Zambia Information & Communications Technology Authority (ZICTA), Lusaka)
Service Restrictions
Call-Back and alternative calling procedures (Res. 21 Rev. PP-06)
AMENDMENTS TO SERVICE PUBLICATIONS
List of Issuer Identifier Numbers for the International Telecommunication Charge Card
Mobile Network
Codes (MNC) for the international identification plan for public networks and
subscriptions
List of ITU Carrier Codes
List of International Signalling Point Codes (ISPC)
National Numbering Plan