Quick answer. Yes, AT&T supports RCS. AT&T customers use RCS through Google Messages on Android and the Messages app on iPhone (iOS 18.1+), and AT&T supports the end-to-end-encrypted RCS added in iOS 26.5. AT&T is retiring its older "Advanced Messaging" RCS implementation in July 2026, after which RCS on AT&T Android devices runs through Google Messages.
Key facts
- AT&T supports RCS via Google Messages (Android) and Apple Messages (iPhone, iOS 18.1+).
- AT&T's legacy "Advanced Messaging" RCS is being retired in July 2026, RCS continues via Google Messages.
- AT&T supports encrypted RCS on iPhone (iOS 26.5, 2026).