Numbering & addressing

Introduction

The International Telecommunication Union (ITU-T) has set out the principles of international public telecommunication numbering for the fixed network in their Recommendation E.164. However, the widespread use of the Internet has meant that it is becoming more and more necessary to unify the E.164 telephone numbering scheme with the addressing schemes used in the Internet.

The Internet uses the Domain Name System (DNS) to provide IP addresses, among other things. Specification RFC 3761 from the Internet Engineering Task Force (IETF) defines ENUM (Electronic Numbering) and provides a suite of protocols to enable callers or networks to determine if a called party can be contacted over the internet. ENUM facilitates the transfer of traffic from public telecommunications networks to the Internet.

RFC 3761 specifies how the DNS can be used for storage of E.164 numbers. More specifically, it shows how DNS can be used for identifying available services connected to one E.164 number.

Our Role & Activities

TC NTECH has the task of working on issues concerning Numbering, Naming, Addressing and Routeing. It is responsible for:

  • Co-ordination of the numbering and addressing issues within ETSI, and contributing to ITU-T Study Group 2
  • Addressing and Naming translation
  • Collaborating with CEPT/ECC WG NaN (Numbering and Networks)
  • Collaborating with ERO (the European Radio Office) on European numbering, naming and addressing issues

Standards

The following is a list of the latest published ETSI standards on numbering and addressing.

A full list of related standards in the public domain is accessible via the ETSI standards search. Via this interface you can also subscribe for alerts on updates of ETSI standards.

For work in progress see the ETSI Work Programme on the Portal.

Standard No. Standard title.
TS 123 003 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 13.5.0 Release 13)
TS 123 003 Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 13.4.0 Release 13)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 12.9.0 Release 12)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 12.8.0 Release 12)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 12.7.0 Release 12)
TR 102 300-5 Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Designers' guide; Part 5: Guidance on numbering and addressing
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 12.6.0 Release 12)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 12.5.0 Release 12)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 12.3.1 Release 12)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 12.4.1 Release 12)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 11.9.0 Release 11)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 10.10.0 Release 10)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 8.21.0 Release 8)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 9.15.0 Release 9)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 10.9.0 Release 10)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 11.8.0 Release 11)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 8.20.0 Release 8)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 9.14.0 Release 9)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 10.8.0 Release 10)
TS 123 003 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); Numbering, addressing and identification (3GPP TS 23.003 version 11.7.0 Release 11)