| Assignment procedures for international telecommunication numbering, naming, addressing and identification (NNAI) resources |
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Recommendation ITU-T E.1120 specifies procedures to be used by an applicant, the Director of the Telecommunication Standardization Bureau (TSB) and the appropriate ITU-T Study Group1 (currently ITU-T SG2), for the assignment of:
–ITU-T E.164 identification codes (ICs) associated within the shared country codes (CCs) for the networks category of ITU-T E.164, whose combination is designated CC + IC.
–ITU-T E.212 shared mobile country codes for networks and their respective mobile network codes.
–ITU-T E.118.1 assigned global issuer identifier numbers (IINs).
–ITU-T E.218 shared terrestrial trunk radio access mobile network codes.
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| Citation: |
https://handle.itu.int/11.1002/1000/15520 |
| Series title: |
E series: Overall network operation, telephone service, service operation and human factors
E.1000-E.1999: International operation
E.1100-E.1199: Numbering plan of the international telephone service |
| Approval date: |
2025-02-14 |
| Provisional name: | E.gap |
| Approval process: | TAP |
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Status: |
In force |
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Maintenance responsibility: |
ITU-T Study Group 2 |
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Further details: |
Patent statement(s)
Development history
[11 related work items in progress]
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| Ed. |
ITU-T Recommendation |
Status |
Summary |
Table of Contents |
Download |
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1
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E.1120 (02/2025)
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In force
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here
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here
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here
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ITU-T Supplement
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Title
|
Status
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Summary
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Table of contents
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Download
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E.1100 series Suppl. 1 (03/2012)
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ITU-T E.1100-series – Operational aspects for the implementation of ITU-T E.164 country code 888
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In force
|
here
|
here
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here
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E Suppl. 11 (06/2020)
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Criteria for M2M/IoT-related assignments under Recommendation ITU-T E.164.1 and Recommendation ITU-T E.212 Annex A
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In force
|
here
|
here
|
here
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| Title |
Approved on |
Download |
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Radio fequency-level based single-number indicator for mobile network usefulness for a given range of applications
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2023
|
here
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Technical Report on analysis of ITU-T F.930
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2020
|
here
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Identify call location for emergency service
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2020
|
here
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