3GPP Scout / Reference / 5GMM causes / 5GMM cause #76
TS 24.5015GMM cause
In plain words
The network sends this cause when the UE requests access or de-registration in a CAG cell unauthorized by its allowed CAG list for the PLMN. The network also sends it for those requests in a non-CAG cell when the UE is authorized for CAG cells only.
Our summary of the spec text quoted below.
Not authorized for this CAG or authorized for CAG cells only
Source: 3GPP TS 24.501 V20.1.0, clause 9.11.3.2, table 9.11.3.2.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.
This 5GMM cause is sent to the UE if the UE requests access or de-registration: i) in a CAG cell with a CAG-ID which is not authorized based on the UE's "allowed CAG list" for the PLMN; or ii) in a non-CAG cell, wherein the UE is only allowed to [...]
Source: 3GPP TS 24.501 V20.1.0, clause A.2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.
3GPP Scout built this page from TS 24.501 V20.1.0 as indexed on 2026-10-15. The quotes are copied from the spec, and code checks each one against the stored text and the 3GPP archive file before publishing. The plain-words line was written by an AI model (GPT-6 Sol) and checked against the quotes by a second AI model from another company (Claude Opus 5.5). The official 3GPP text governs.