ITU Operational Bulletin www.itu.int/itu-t/bulletin
No. 1293	1.VI.2024	(Information received by 16 May 2024)   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. 4

Telephone Service:

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

Thailand (Office of the National Broadcasting and Telecommunications Commission
(the Office of NBTC), Bangkok) 5

Testing Laboratories recognized by ITU

Service Restrictions

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

AMENDMENTS  TO  SERVICE  PUBLICATIONS

Mobile Network Codes (MNC) for the international identification plan  for public networks
and subscriptions. 8

List of International Signalling Point Codes (ISPC)

National Numbering Plan

Annex:

List of Signalling Area/Network Codes (SANC) (Complement to Recommendation ITU-T Q.708 (03/1999))
(Position on 1 June 2024)