ITU Operational Bulletin www.itu.int/itu-t/bulletin
No. 1320	15.VII.2025	(Information received by 3 July 2025)   ISSN 1564-5223 (Online)
Place des Nations CH-1211 Genève 20 (Switzerland) Tel:            +41 22 730 5111 E-mail:       itumail@itu.int		Standardization Bureau (TSB) Tel:            +41 22 730 5211 Fax:            +41 22 730 5853 E-mail:       tsbmail@itu.int / tsbtson@itu.int	Radiocommunication Bureau (BR) Tel:            +41 22 730 5560 Fax:            +41 22 730 5785 E-mail:       brmail@itu.int

Table of Contents

GENERAL  INFORMATION

Lists annexed to the ITU Operational Bulletin: Note from TSB.... 3

Approval of ITU-T Recommendations

Telephone Service:

Bhutan (Bhutan InfoComm and Media Authority (BICMA), Thimphu)

Guyana (Telecommunications Agency, Georgetown) 7

Iraq (Communications and Media Commission (CMC), Baghdad).... 11

Kyrgyzstan (Service for Regulation and Supervision in the Communication Industry under the
Ministry of Digital Development of the Kyrgyz Republic, Bishkek)

Morocco (Agence Nationale de Réglementation des Télécommunications (ANRT), Rabat)

Service Restrictions.. 15

Call-Back and alternative calling procedures (Res. 21 Rev. PP-06).. 15

AMENDMENTS  TO  SERVICE  PUBLICATIONS

List of Issuer Identifier Numbers

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