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bullet ITU Recommendation E.164, on Numbering plan and dialing procedures in the international service.
bullet National Numbering plans, List of Codes and numbers, ENUM, ITU-T
bullet Procedures for allocation and management of international numbering resources, Resolution No. 20
bullet International mobile telecommunications - 2000 (IMT2000) Numbering aspects,
[COM2-34] Rapporteur, Question 13/2, and United Kingdom.
bullet Request for study of the E.164 Numbering requirements for internet telephony,
[COM2-D145] Post & Telekom Austria (Q1/2).
bullet Summary of ITU-T Recommendation E.191, on B-ISDN numbering and addressing. Geneva, 10/1996.
bullet Numbering for Nomadic “Voice over IP” Services, ECC Recommendation (05)03, May 2005
bullet World Numbering Developments (revised and extended version of Global telecommunications numbering issues review, 2002) Claire and Robert Milne, Antelope Consulting, 2005 
bullet Consultation Document An assessment of alternative solutions for UK number portability, Ofcom, United Kingdom, 2004
bullet A review of numbering arrangements for Premium Rate Services, Ofcom, United Kingdom, 2004
bullet Numbering for VoIP Services, Report 59, EEC, December 2004
bullet Numbering (See p. 35-39), Annex 3: Regulatory Issues: supplementary data, Sixth Report on the Implementation of the Telecommunications Regulatory Package, European Commission, COM(2000)814, Brussels, 7 December 2000.
bullet Final Report on Number Portability for Mobile Networks, European Committee for Telecommunications Regulatory Affairs, April 2000
bullet Plan Técnico Fundamental de Numeración
(Basic Numbering Technical Plan). Comisión Federal de Telecomunicaciones, Mexico. [Spanish - Español]
bullet World Telephone Numbering Guide (Regional/Special)


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Updated : 2006-09-09