ITU Operational Bulletin www.itu.int/itu-t/bulletin
No. 1340	15.V.2026	(Information received by 30 April 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

Telephone Service:

Armenia (Ministry of High-Tech Industry, Yerevan)

Burundi (Agence de Régulation et de Contrôle des Télécommunications du Burundi
(ARCT), Bujumbura)

France (Autorité de Régulation des Communications Électroniques, des Postes et de la Distribution
de la Presse (Arcep), Paris)

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

Mozambique (Instituto Nacional das Comunicações de Moçambique (INCM), Maputo)

Turkmenistan (Turkmenaragatnashyk Agency, Ashgabat)

Service Restrictions.. 26

Call-Back and alternative calling procedures (Res. 21 Rev. PP-06).. 26

AMENDMENTS  TO  SERVICE  PUBLICATIONS

List of Issuer Identifier Numbers

Mobile Network Codes (MNC) for the international identification plan for public networks
and subscriptions.. 28

National Numbering Plan.... 29