ITU-T E.212 (09/2016)

1 Scope
2 References
3 Definitions
4 Abbreviations and acronyms
5 Considerations
6 IMSI structure, format and assignment procedures
6.1 Structure and format of the IMSI
6.2 IMSI assignment procedures
Annex A – Criteria and procedures for the assignment and reclamation of shared ITU‑T E.212 mobile country codes (MCC) for networks and their respective mobile network codes (MNCs)
A.1 Introduction
A.2 Scope
A.3 Principles for assignment
A.4 Criteria for assignment
A.5 Assignment
A.6 Voluntary return of unused MNCs
A.7 Criteria for reclamation
A.8 Reclamation
A.9 Reconsideration process
Annex B – Principles for the assignment of mobile network codes (MNCs) within geographic MCCs
Annex C – Procedures for the assignment of an additional MCC to a country
Annex D – Use of mobile subscription identification number (MSIN)
Annex E – The use of an MCC+MNC in a country other than the country to which the MCC has been assigned by the Director of TSB
E.1 Introduction
E.2 Procedure to be followed for implementation of the extra-territorial use of an MCC+MNC
E.3 Voluntary return of an MNC
E.4 Criteria for cancellation of extra-territorial use
E.5 Cancellation procedures
Annex F – Illustration of uses of ITU-T E.212 resources
F.1 Introduction
F.2 Mobile networks (PLMN)
F.3 Fixed networks (PSTN)
F.4 Satellite and non-terrestrial networks
F.5 Universal personal telecommunication (UPT)
F.6 Services used globally
F.7 Networks
Appendix I – Form A: Notification of the use of an MCC/MNC extra-territorially
Appendix II – Form B: Notification of the cancellation of use of an MCC/MNC extra-territorially
Bibliography

Recommendation ITU-T E.212 defines a unique international identification plan for public fixed and mobile networks providing users with access to public telecommunication services.

This Recommendation describes a unique and unambiguous identification plan for subscriptions and the format of the IMSI.