3GPP Scout / Reference / EMM causes / EMM cause #13

TS 24.301EMM cause

EMM cause #13: Roaming not allowed in this tracking area

TS 24.301 V20.1.0Clause 9.9.3.9Value 13 (bits 0000 1101)Checked 2026-10-15

In plain words

The PLMN offers the UE roaming by subscription, but not in the tracking area. The network sends this cause there when the UE requests service or the network initiates a detach request.

Our summary of the spec text quoted below.

What the spec says

Name in the cause table

Roaming not allowed in this tracking area

Source: 3GPP TS 24.301 V20.1.0, clause 9.9.3.9, table 9.9.3.9.1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24301-k10.zip in the 3GPP archive.

When it is used

This EMM cause is sent to an UE which requests service, or if the network initiates a detach request, in a tracking area of a PLMN which by subscription offers roaming to that UE but not in that tracking area.

Source: 3GPP TS 24.301 V20.1.0, clause A.2. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: 24301-k10.zip in the 3GPP archive.

Same cause in 5GS (TS 24.501)

TS 24.501 defines the corresponding cause for 5GS. Its page quotes the 5GS wording.

How this page was made

3GPP Scout built this page from TS 24.301 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.