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ITU-T E.164/I.331 (08/1991)

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Numbering plan for the ISDN era

Citation:	https://handle.itu.int/11.1002/1000/416
Series title:	E series: Overall network operation, telephone service, service operation and human factors E.100-E.229: International operation E.160-E.169: Numbering plan of the international telephone service
Approval date:	1991-08-23
Approval process:	TAP
Status:	Superseded
Observation:	This Recommendation is also included but not published in I series under alias number I.331. It replaces former E.163 numbering plan
Maintenance responsibility:	ITU-T Study Group 2
Further details:	Patent statement(s)

EditionsRelated Supplement(s)Related technical papers and reports

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
6.9	E.164 Suppl. 6 (03/2012)	In force	here	here	here
6.8	E.164 Suppl. 5 (11/2009)	In force	here	here	here
6.7	E.164 (2010) Amd. 1 (06/2011)	In force	here	-	here
6.6	E.164 Suppl. 4 (2004) Amd. 1 (11/2009)	In force	here	-	here
6.5	E.164 Suppl. 4 (05/2004)	In force	here	here	here
6.4	E.164 Suppl. 3 (2004) Amd. 1 (11/2009)	In force	here	-	here
6.3	E.164 Suppl. 3 (05/2004)	In force	here	here	here
6.2	E.164 Suppl. 2 (06/2020)	In force	here	here	here
6.1	E.164 Suppl. 1 (03/1998)	In force	-	here	here
6	E.164 (11/2010)	In force	here	here	here
5.4	E.164 Suppl. 2 (06/2014)	Superseded	here	here	here
5.3	E.164 Suppl. 5 (05/2008)	Superseded	here	here	here
5.2	E.164 Suppl. 2 (03/2012)	Superseded	here	here	here
5.1	E.164 Suppl. 2 (11/2009)	Superseded	here	here	here
5	E.164 (02/2005)	Superseded	here	here	here
4.3	E.164 Suppl. 4 (05/2003)	Superseded	here	here	here
4.2	E.164 Suppl. 3 (05/2002)	Superseded	here	here	here
4.1	E.164 Suppl. 2 (11/1998)	Superseded	-	here	here
4	E.164 (05/1997)	Superseded	here	here	here
3	E.164/I.331 (08/1991)	Superseded	-	here	here
2	E.164/I.331/Q.11 bis (11/1988)	Superseded	-	here	here
1	E.164/I.331 (10/1984)	Superseded	-	-	Not available


ITU-T Supplement	Title	Status	Summary	Table of contents	Download
E-100 series Suppl. 1 (02/2019)	ITU-T E.100 series – Framework of disaster management for disaster relief system	In force	here	here	here
E Suppl. 11 (06/2020)	Criteria for M2M/IoT-related assignments under Recommendation ITU-T E.164.1 and Recommendation ITU-T E.212 Annex A	In force	here	here	here

Title	Approved on	Download
Radio fequency-level based single-number indicator for mobile network usefulness for a given range of applications	2023	here
Technical Report on analysis of ITU-T F.930	2020	here
Identify call location for emergency service	2020	here
ISDN field trial guidelines	1991	here