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Glossary of 3GPP Identifiers

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Source:   ETSI (SCP) TS 101 220 – Clause 4

Data element, which identifies an Application in a card. The AID consists of a Registered application provider IDentifier (RID) of 5 bytes and a Proprietary application Identifier eXtension (PIX) of up to 11 bytes.


Source:   TS 23.003, clause 18.9

An Additional MSISDN is an MSISDN that is assigned to a user with PS subscription in addition to the already assigned MSISDN(s). The structure of an A-MSISDN should follow the structure of an MS international ISDN number. The A‑MSISDN shall be able to be used for TS11 (telephony) in the CS domain and shall be uniquely assigned per IMSI.


Source:   TS 23.003, clause 22.2

The ANDSF-SN is used by the UE to discover the ANDSF Server in the network.

The ANDSF-SN is composed of six labels. The last three labels shall be "". The second and third labels together shall uniquely identify the PLMN. The first label shall be "andsf".

The ANDSF-SN is derived from the IMSI or Visited PLMN Identity as follows:


Source:   TS 24.302, clause 4.4.4

For access to EPC through a trusted non-3GPP access network via S2a the UE has to use the ANID in the key derivation. The handling of the ANID is described in TS 24.302, clause and the generic format and specific values for the ANID are defined in TS 24.302, clause 8.1.1.

ANID is temporary subscriber data stored in HSS and 3GPP AAA server.


Source:   TS 23.003, clause 9

In the GPRS backbone, an Access Point Name (APN) is a reference to a GGSN. To support inter-PLMN roaming, the internal GPRS DNS functionality is used to translate the APN into the IP address of the GGSN.


Source:   RFC 4825 (XCAP), section 4

A unique identifier within the namespace of application unique IDs created by this specification that differentiates XCAP resources accessed by one application from XCAP resources accessed by another.