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I.331�:�The international public telecommunication numbering plan �

Recommendation I.331

This Recommendation is published under alias number E.164
In force components
Number
 Title Status
E.164 (11/10)
� 		The international public telecommunication numbering plan � In force
E.164 (2010) Amd. 1 (06/11)
� 		Revised Annex A: Clarification and explanation of the structure and function of international ITU-T E.164-numbers � In force (prepublished)
E.164 Supplement 2 (11/09)
� 		Number portability � In force
E.164 Supplement 3 Amendment 1 (11/09)
� 		� In force
E.164 Supplement 4 Amendment 1 (11/09)
� 		� In force
E.164 Supplement 5 (11/09)
� 		Guidance with regard to the selection of numbers for helplines for children � In force
�
�
Superseded and Withdrawn components
Number
 Title Status
E.164/I.331/Q.11bis (11/88)
� 		Numbering plan for the ISDN era �
This Recommendation is also included but not published in I series under alias number I.331 		Superseded
E.164/I.331/Q.11bis (08/91)
� 		Numbering plan for the ISDN era �
This Recommendation is also included but not published in I series under alias number I.331. It replaces former E.163 numbering plan 		Superseded
E.164 Supplement 5 (05/08)
� 		Guidance with regard to the selection of numbers for helplines for children � Superseded
I.331 (05/97)
� 		The international public telecommunication numbering plan �
This Recommendation is published under alias number E.164 		Superseded

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