Get Started

Error - 21612

The 'To' phone number is not currently reachable via SMS

You have attempted to send to a number that is not currently reachable via Twilio SMS. If the number provided is a properly formatted E.164, it is most likely that Twilio does not yet have service with the carrier you are trying to reach.

We have logged the carrier you are attempting to reach and will monitor these failures when adding new carriers.