TS 24.501 words these values in parallel, so they share this page. Each has its own section with the spec text and a plain explanation.
15GMM cause #74: Temporarily not authorized for this SNPN
Clause 9.11.3.2Value 74 (bits 0100 1010)
In plain words
The network sends this cause for access requests or network initiated de-registration in an SNPN cell where the UE lacks a subscription or onboarding services permission.
This 5GMM cause is sent to the UE if it requests access, or if the network initiates a de-registration procedure, in a cell belonging to an SNPN for which the UE has no subscription to operate or for which the UE is not allowed to operate onboarding services.
25GMM cause #75: Permanently not authorized for this SNPN
Clause 9.11.3.2Value 75 (bits 0100 1011)
In plain words
The network sends this cause for access requests or network de-registration in an SNPN cell with a globally-unique SNPN identity. This cause applies for listed reasons, including no UE subscription to operate there or an expired UE subscription.
This 5GMM cause is sent to the UE if it requests access, or if the network initiates a de-registration procedure, in a cell belonging to an SNPN with a globally-unique SNPN identity for which the UE either has no subscription to operate, the UE's subscription has expired or the UE [...]
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 lines were 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.