| T.3-1 Relevant TSB databases. |
| T.3-2 Allocation and management of international telecommunication numbering, naming, addressing and identification resources in accordance with ITU-T recommendations and procedures. |
T.3-1 Relevant TSB databases
| ITU-T E.164: The international public telecommunication numbering plan |
|
Country Codes |
|
International Shared Country Codes |
| ITU-T E.118: The international telecommunication charge card |
|
IIN (issuer identifier number) |
| ITU-T E.212: The international identification plan for public networks and subscriptions |
| MCC (mobile country code) |
| MNC (mobile network code) |
|
International Mobile, shared codes |
|
MCC+MNC used extra-territorially |
| ITU-T E.218: Management of the allocation of terrestrial trunk radio Mobile Country Codes |
| TMCC (terrestrial trunk radio mobile country code) |
| ITU-T Q.708: Assignment procedures for international signalling point codes |
| SANC (signalling area/network code) |
Access to the INR database is restricted to ITU Member States and ITU-T Sector Members.
T.3-2 Allocation and management of international telecommunication numbering, naming, addressing and identification resources in accordance with ITU-T recommendations and procedures
ITU assigns about two-dozen types of International Numbering Resources (INRs), either directly or indirectly.
Each year, 24 Operational Bulletins are published in 6 languages and some 20 annexes on the lists of codes are kept up to date.
Pursuant to the recommendations of Council 2015, revenue generation from INRs was further discussed in the Council Working Group on Financial and Human Resources (CWG-FHR) meeting held in October 2015.
Two reports of misuse of numbering resources were received in 2015, one of which was titled “test”.
Recommendation ITU-T E.156 “Guidelines for ITU-T action on reported misuse of E.164 number resources” is under revision to include new cases of misuse and to investigate more efficient means of combating misuse.
