Name in the cause table
No Suitable Cells In 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.
3GPP Scout / Reference / EMM causes / EMM cause #15
TS 24.301EMM cause
EMM cause #15: No Suitable Cells In tracking area
In plain words
This cause is sent to the UE when it requests service, or the network initiates a detach request, in a tracking area its subscription does not allow. This applies when, in addition, the UE should find another allowed tracking area or location area in the same PLMN or an equivalent PLMN.
Our summary of the spec text quoted below.
What the spec says
When it is used
[...] to the UE if it requests service, or if the network initiates a detach request, in a tracking area where the UE, by subscription, is not allowed to operate, but when it should find another allowed tracking area or location area in the same PLMN or an equivalent PLMN [...]
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.
- 5GMM cause #15 (TS 24.501)
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 separately for this value, because the generated line kept dropping a condition, and checked against the quotes by an AI model (Claude Opus 5.5). The official 3GPP text governs.