Apple reportedly began distributing carrier bundle 72.0.3 on Oct. 8, 2026, to U.S. iPhone 18 Pro Max devices on AT&T running the iOS 27.2 beta. The bundle number identifies carrier settings; iOS 27.2 beta is the operating-system branch.
Carrier settings by iOS branch
The reported versions differ by software branch. AT&T users on iOS 27.0 had carrier settings version 72.1, while iPhone 18 Pro Max devices on the iOS 27.2 beta had version 72.0.2 before the reported 72.0.3 rollout.
| Configuration | iOS branch | Carrier settings version reported |
| AT&T users | iOS 27.0 | 72.1 |
| AT&T iPhone 18 Pro Max | iOS 27.2 beta | 72.0.2, followed by the reported 72.0.3 rollout on Oct. 8 |
The earlier cellular-service reports
Earlier reports described a small number of AT&T iPhone 18 Pro Max users experiencing cellular-service failures. Some affected phones displayed SOS and lost or intermittently lost cellular service, including access to calls, texts, or mobile data. Individual user accounts also described SOS status and interrupted service.
