ITU Operational Bulletin www.itu.int/itu-t/bulletin
No. 1135	1.XI.2017	(Information received by 16 October 2017) 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

Approval of ITU-T Recommendations

Telephone Service

Palau (Division of Communication under the Ministry of Public Infrastructure, Industries and
Commerce, Koror)

Other communication: Serbia

Service Restrictions

Call – Back and alternative calling procedures (Res. 21 Rev. PP – 2006)

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)

National Numbering Plan