ITU Operational Bulletin www.itu.int/itu-t/bulletin
No. 1330	15.XII.2025	(Information received by 30 November 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

Telephone Service:

Central African Rep. (Autorité de Régulation des Communications électroniques et
de la Poste, Bangui)

Iran (Islamic Republic of) (Communications Regulatory Authority (CRA), Tehran)

New Zealand (Ministry of Business, Innovation and Employment, Wellington)

Other communication:

Serbia

Service Restrictions.. 15

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

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)