Operational Bulletin online

ITU Operational Bulletin

No. 1275

Information received by 15.VIII.2023 ISSN 1564-5223 (Online)
Place des Nations CH-1211
Genève 20 (Switzerland)
Tel: +41 22 730 5111 Email:
Standardization Bureau (TSB) Tel: +41 22 730 5211 Fax: +41 22 730 5853 Email:
Radiocommunication Bureau (BR) Tel: +41 22 730 5560 Fax: +41 22 730 5785 Email:

Dates of publication of the next Operational Bulletins

No. Publication date Including information received by
1276 15.IX.2023 31.VIII.2023
1277 30.IX.2023 18.IX.2023
1278 15.X.2023 29.IX.2023
1279 1.XI.2023 13.X.2023
1280 15.XI.2023 6.XI.2023
1281 1.XII.2023 17.XI.2023
1282 15.XII.2023 30.XI.2023
1283 1.I.2024 14.XII.2023
1284 15.I.2024 28.XII.2023
1285 1.II.2024 15.I.2024
1286 15.II.2024 1.II.2024
1287 1.III.2024 15.II.2024
1288 15.III.2024 1.III.2024
1289 1.IV.2024 18.III.2024
1290 15.IV.2024 28.III.2024
1291 1.V.2024 15.IV.2024
1292 15.V.2024 1.V.2024
1293 1.VI.2024 16.V.2024
1294 15.VI.2024 31.V.2024
1295 1.VII.2024 14.VI.2024

General information

Lists annexed to the ITU Operational Bulletin

A. The following Lists have been published by TSB or BR as Annexes to the ITU Operational Bulletin:

OB No.
1199 List of International Signalling Point Codes (ISPC) (according to ITU-T Q.708 (1999-03)) (position on 2020-06-30 22:00:00 UTC)
1162 Mobile Network Codes (MNC) for the international identification plan for public networks and subscriptions (according to ITU-T E.212 (2016-09)) (position on 2018-12-15 00:00:00 UTC)
1161 List of Issuer Identifier Numbers for the International Telecommunication Charge Card (according to ITU-T E.118 (2006-05)) (position on 2018-12-01)
1154 Status of Radiocommunications between Amateur Stations of different Countries (in accordance with optional provision No. 25.1 of the Radio Regulations) and Form of Call Signs assigned by each Administration to its Amateur and Experimental Stations (position on 2018-08-15)
1125 List of terrestrial trunk radio mobile country codes (according to ITU-T E.218 (2004-5)) (position on 2017-06-01 00:00:00 UTC)
1125 List of Signalling Area/Network Codes (SANC) (according to ITU-T Q.708 (1999-03)) (position on 2017-06-01 00:00:00 UTC)
1117 List of mobile country or geographical area codes (according to ITU-T E.212 (2016-09)) (position on 2017-02-01 00:00:00 UTC)
1114 List of Recommendation ITU-T E.164 Assigned Country Codes (according to ITU-T E.164 (2010-11)) (position on 2016-12-15)
1096 Legal time 2016
1073 Legal time 2015
1060 List of ITU Carrier Codes (according to ITU-T M.1400 (2013-03)) (position on 2014-09-15 00:00:00 UTC)
1049 Legal time 2014
1027 Legal time 2013
1015 List of Access codes/numbers for mobile networks (according to ITU-T E.164 (2010-11)) (position on 2012-11-01 00:00:00 UTC)
1002 List of Country or Geographical Area Codes for non standard facilities in telematic services (according to ITU-T T.35 (2000-02)) (position on 2012-04-12 00:00:00 UTC)
1001 List of the national authorities designated to assign ITU-T Recommendation T.35 terminal provider codes (according to ITU-T T.35 (2000-02)) (position on 2012-04-15 00:00:00 UTC)
1000 Service Restrictions (Recapitulatory list of service restrictions in force relating to telecommunications operation) (position on 2012-03-15 00:00:00 UTC)
999 Legal time 2012
994 Dialling Procedures (International prefix, national (trunk) prefix and national (significant) number) (according to ITU-T E.164 (2010-11)) (position on 2011-12-15 00:00:00 UTC)
991 Call-Back and alternative calling procedures (position on 2011-11-01 00:00:00 UTC)
980 List of Telegram Destination Indicators (according to ITU-T F.32 (1995-10)) (position on 2011-05-15 00:00:00 UTC)
978 List of Telex Destination Codes (TDC) and Telex Network Identification Codes (TNIC) (position on 2011-04-15 00:00:00 UTC)
977 List of Data Network Identification Codes (DNIC) (according to ITU-T X.121 (2000/10)) (position on 2011-01-01 00:00:00 UTC)
976 List of Data Country or Geographical Area Codes (according to ITU-T X.121 (2000/10)) (position on 2011-03-15 00:00:00 UTC)
974 List of Names of Administration Management Domains (ADMD) (according to ITU-T F.400) (position on 2011-02-15 00:00:00 UTC)
955 Various tones used in national networks (according to ITU-T E.180 (1998-3)) (position on 2010-05-01 00:00:00 UTC)
669 Five-letter Code Groups for the use of the International Public Telegram Service (according to ITU-T F.1 (1998-3))

B. The following Lists are available online from the ITU-T website:

Approval of ITU-T Recommendations

By AAP-34, it was announced that the following ITU-T Recommendations were approved, in accordance with the procedures outlined in Recommendation ITU-T A.8:

  • ITU-T L.1023 (07/2023)
  • ITU-T L.1027 (07/2023)
  • ITU-T L.1326 (07/2023)
  • ITU-T L.1471 (07/2023)

International Identification Plan for Public Networks and Subscriptions

In accordance with ITU-T Recommendation E.212 (2016-09)

Note from TSB

Identification codes for International Mobile Networks

Associated with shared mobile country code 901 (MCC), the following two-digit mobile network codes (MNC) have been assigned .



Mobile Country Code (MCC) and Mobile Network Code (MNC)

Date of assignment

GlobalmatiX AG

901 02


Mobile Country Code
Indicatif de pays du mobile
Indicativo de país para el servicio móvil
Mobile Network Code
Code de réseau mobile
Indicativo de red para el servicio móvil

Telephone Service

In accordance with ITU-T Recommendation E.164

Iridium Satellite LLC ++881 6 and +881 7

Communication of 15.VIII.2023

Iridium Satellite LLC announces the following information about the Iridium numbering plan and dialling procedure:

A 13 th digit has been added to the dialling procedures for numbers in range +8816-xxx-xxxxx to support expanded Iridium services and subscriber growth. Iridium’s MSISDNs are now either 12 digits or 13 digits long. These calls should therefore be considered valid.

Service providers are kindly requested to program their switches to enable access to these numbering ranges.


Iridium Satellite LLC has interconnection agreements with the following carriers listed below. At the present time, these are the only valid directly interconnected IXC carriers for terminating or originating traffic with the Iridium Network. Their local representative should be contacted for pricing and routing information:

AT&T (U.S.):                                    

Sinch (U.S.):                                     

Telstra International (AUS):      

Iridium Satellite LLC requests that access be ensured to the Iridium network using country codes +881 6 and +881 7, and has set up a recorded announcement in its switch that will enable customers to validate their routing.

To access this service, please dial:   +881 6 311 10006 and

                                                                        +881 7 311 10007

Calls placed to these numbers will terminate at Iridium Satellite LLC switch with the following recorded announcement: “You have reached the Iridium Satellite Tempe Gateway, your access to the Iridium global network. Welcome.”

The contact person below would appreciate an e-mail message or fax from you with the contact information for both the person responsible for your main translations and the main technical point of contact for your company. This will allow Iridium Satellite LLC to work together with customers to solve any routing problems and other issues that might arise.

Service Restrictions

Country/geographical area OB
Seychelles (page 12)
Malaysia (page 5)
São Tomé and Principe (page 14)
Hong Kong, China (page 5)

Call-back and alternative calling procedures (Res. 21 Rev. PP-2006)


Abbreviations used in this section


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

In accordance with ITU-T Recommendation E.212 (2016-09)

Position amended originally published as annex to ITU Operational Bulletin No. 1162 — 15.XII.2018

Country/Geographical area



Australia LIR



505 90

UE Access Pty Ltd

International Mobile, shared code ADD



901 02

GlobalmatiX AG

*                  MCC:  Mobile Country Code / Indicatif de pays du mobile / Indicativo de país para el servicio móvil

                    MNC:  Mobile Network Code / Code de réseau mobile / Indicativo de red para el servicio móvil