TS 23.003 – Numbering, Addressing and Identification
3GPP TS 23.003 is the 3GPP Technical Specification for Numbering, Addressing and Identification. It is published in 18 releases (R99 to Rel-20); the latest version is 20.1.0 in Rel-20.
Defines naming, numbering, addressing and identification resources (Identifiers) across digital cellular and 3GPP systems including IMEI, IMSI, MSISDN, and 5G identifiers.
Releases and versions of TS 23.003
| Release | Latest version | Links |
|---|---|---|
| Rel-20 | 20.1.0 | Read · Download (3GPP) |
| Rel-19 | 19.8.0 | Read · Download (3GPP) |
| Rel-18 | 18.8.0 | Read · Download (3GPP) |
| Rel-17 | 17.11.0 | Read · Download (3GPP) |
| Rel-16 | 16.12.0 | Read · Download (3GPP) |
| Rel-15 | 15.11.0 | Read · Download (3GPP) |
| Rel-14 | 14.7.0 | Read · Download (3GPP) |
| Rel-13 | 13.10.0 | Read · Download (3GPP) |
| Rel-12 | 12.9.0 | Read · Download (3GPP) |
| Rel-11 | 11.9.0 | Read · Download (3GPP) |
| Rel-10 | 10.10.0 | Read · Download (3GPP) |
| Rel-9 | 9.15.0 | Read · Download (3GPP) |
| Rel-8 | 8.21.0 | Read · Download (3GPP) |
| Rel-7 | 7.11.0 | Read · Download (3GPP) |
| Rel-6 | 6.17.0 | Read · Download (3GPP) |
| Rel-5 | 5.11.0 | Read · Download (3GPP) |
| Rel-4 | 4.9.0 | Read · Download (3GPP) |
| R99 | 3.15.0 | Read · Download (3GPP) |
Scope of TS 23.003
Category: Core Network (Numbering and Addressing). Technology generation: Multi-Gen. Network layer: CoreNetwork.
Who should read this specification?
- Network operators
- Device manufacturers
- Regulators and standards bodies
- Researchers and academics
Implementation notes
Complexity level: Intermediate. Implementation difficulty: Medium.
Key technologies
Specifications that reference TS 23.003
- TS 23.501 5G System Architecture
- TS 23.502 5G System Procedures
- TS 33.501 5G Security Architecture
- TS 24.008 NAS Call, Mobility and Session Procedures
- TS 24.229 IMS SIP/SDP Call Control Protocol
- TS 23.401 Evolved Packet System Architecture
- TS 36.331 E-UTRA Radio Resource Control (RRC) Protocol
- TS 23.228 IP Multimedia Core Network Subsystem
- TS 23.060 GPRS Stage 2 Service Description
- TS 36.300 E-UTRAN Radio Interface Protocol Architecture
- TS 38.331 NR Radio Resource Control (RRC)
- TS 26.114 IMS Multimedia Telephony Client
Other specifications in the 23 series
Frequently asked questions
What is 3GPP TS 23.003?
3GPP TS 23.003 is the 3GPP Technical Specification for Numbering, Addressing and Identification. Defines naming, numbering, addressing and identification resources (Identifiers) across digital cellular and 3GPP systems including IMEI, IMSI, MSISDN, and 5G identifiers.
Which 3GPP releases include TS 23.003?
TS 23.003 is published in 18 releases, from R99 to Rel-20. The latest version on 3GPP Explorer is 20.1.0 (Rel-20).
What category does TS 23.003 belong to?
TS 23.003 belongs to the Core Network (Numbering and Addressing) category of 3GPP specifications. It applies to Multi-Gen networks.
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