ITU Operational Bulletin www.itu.int/itu-t/bulletin
No. 1321	1.VIII.2025	(Information received by 22 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

The International Public Telecommunication Numbering Plan (Recommendation ITU-T E.164):
Note from TSB

International Identification Plan for Public Networks and Subscriptions (Recommendation ITU-T E.212):
Note from TSB

The international telecommunication charge card (Recommendation ITU-T E.118): Note from TSB

Data Transmission Service:

Spain (Secretaría de Estado de Telecomunicaciones e Infraestructuras Digitales, Madrid)

Telephone Service:

Eswatini (Eswatini Communications Commission, Ezulwini)

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

Mauritius (Information and Communication Technologies Authority (ICTA), Port-Louis)

Service Restrictions.. 10

Call-Back and alternative calling procedures (Res. 21 Rev. PP-06).. 10

AMENDMENTS  TO  SERVICE  PUBLICATIONS

List of Issuer Identifier Numbers

List of Recommendation ITU-T E.164 assigned Country Codes

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)

List of Data Network Identification Codes (DNIC)

National Numbering Plan