Quick answer. Nearly, for consumers — not yet fully, for business. Google has rolled out consumer RCS through Google Messages in most countries, so person-to-person RCS is close to globally available wherever there's a compatible device and data connection. Business RCS is more limited: it depends on carrier support and provider reach in each country, and Apple's iPhone RCS support is still expanding market by market. So RCS is approaching worldwide consumer availability, while business coverage continues to broaden each year.
The gap between consumer and business availability is the thing to understand. The protocol and the consumer app travel almost everywhere; the verified, branded business channel follows as carriers enable A2P RCS and providers add country support.
Key facts
- Consumer RCS (Google Messages): near-worldwide, with only a few gaps.
- Business RCS: available in a growing subset of countries, carrier- and provider-dependent.
- Android is ~79% of the global smartphone market, so reachable RCS audiences are large even where iPhone support is still expanding (Sinch, 2025–2026).