RCS messaging on iPhone has expanded, here are all of the supported US carriers
With iOS 18, Apple introduced support for RCS messaging, a new protocol that enhances the texting experience between iPhone and Android users. Unlike SMS, you can see read/delivered receipts, send larger files, and have typing indicators, features that were previously missing. At first, only the big three carriers supported RCS messaging. Since then, a lot more have joined in on the fun.
