3GPP Scout / Reference / 5GMM causes / 5GMM cause #78

TS 24.5015GMM cause

5GMM cause #78: PLMN not allowed to operate at the present UE location

TS 24.501 V20.1.0Clause 9.11.3.2Value 78 (bits 0100 1110)Checked 2026-10-15

In plain words

The network sends this cause for PLMNs not allowed to operate at the UE's location, only with specific satellite features in 5G PLMN/access technology combinations.

Our summary of the spec text quoted below.

What the spec says

Name in the cause table

PLMN not allowed to operate at the present UE location

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.

When it is used

This 5GMM cause is sent to the UE to indicate that the PLMN is not allowed to operate at the present UE location. NOTE: This cause is only applicable for a 5G PLMN/access technology combination with specific satellite features.

Source: 3GPP TS 24.501 V20.1.0, clause A.3. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24501-k10.zip in the 3GPP archive.

Same cause in EPS (TS 24.301)

TS 24.301 defines the corresponding cause for EPS. Its page quotes the EPS wording.

How this page was made

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.