You can confirm that RCS is available and enabled on your iPhone by going to Settings > Apps > Messages and scrolling down to look for RCS Messaging, which should appear under “Text Messaging” (as shown in the image above). Make sure that’s toggled on, and you should be good to go.

Apple supports the RCS Universal Profile standard as defined by the GSM Association. You must manually turn on RCS support in Settings > Apps > Messages. However, the switch doesn't appear unless your carrier supports the feature. With it enabled, RCS messages are delivered as green bubbles, with blue bubbles reserved for iMessage.

Even though Apple officially launched RCS support on iPhone with iOS 18, not all carriers support it. Most do now, but your carrier may still be excluded.

Apple has expanded its list of RCS-compatible carriers, but a few high-profile companies are conspicuously absent.The Latest Tech News, Delivered to Your Inbox

Apple finally brought RCS support to the iPhone this year, but the company has to manually approve each carrier

Apple's own Message has similar features, but they previously worked only when you texted another iPhone user; if you happened to be texting with someone using Android, a lot of t

This was the year that messaging was to become more seamless, not more confusing. RCS coming to iPhone heralded the start of something exciting and new, we were told, but then the FBI warned that messages had been hacked and citizens should stop texting and everything suddenly changed. So, should you stop using RCS?

Apple has updated its list of US carriers that support RCS messaging on iPhones. Here's the full list, but who's missing?

Apple recently introduced support for RCS on iOS. This is even though the feature has been around for years. The good news for iPhone users out living in the US is that if you want to make use of RCS messaging,