ITU Operational Bulletin www.itu.int/itu-t/bulletin
No. 1146	15.IV.2018	(Information received by 30 March 2018)  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:

Denmark (Danish Energy Agency, Copenhagen) 5

Other communications: Austria, Serbia. . 6

Service Restrictions. . 7

Call – Back and alternative calling procedures (Res. 21 Rev. PP – 2006) 7

AMENDMENTS  TO  SERVICE  PUBLICATIONS

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

List of Issuer Identifier Numbers for the International Telecommunication Charge Card

List of International Signalling Point Codes (ISPC).. 10

National Numbering Plan.... 10