ITU Operational Bulletin www.itu.int/itu-t/bulletin
No. 1341	1.VI.2026	(Information received by 15 May 2026)   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 and deletion of ITU-T Recommendations

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

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

Telephone Service:

Malta (Malta Communications Authority (MCA), Floriana)

Kazakhstan (Ministry of Artificial Intelligence and Digital Development, Astana)

Russian Federation (Ministry of Digital Development, Communications and Mass Media of the Russian Federation, Moscow)

Testing Laboratories recognized by ITU

Other communications:

Serbia

Austria

Service Restrictions.. 11

Call-Back and alternative calling procedures (Res. 21 Rev. PP-06).. 11

AMENDMENTS  TO  SERVICE  PUBLICATIONS

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).. 15

National Numbering Plan.... 16