ITU Operational Bulletin |
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No. 1261 |
1.II.2023 |
(Information received by 13 January 2023) 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:
Czech Republic (Czech Telecommunication Office, Prague)
Ghana (National Communications Authority (NCA), Accra)
Gibraltar (Gibraltar Regulatory Authority)
Taiwan, China (Ministry of Industry and Information
Technology of the People’s Republic of China,
Beijing)
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