Opt-Out Additional Keywords Added per FCC Ruling

Twilio, by default, handles standard English-language reply messages such as STOP, UNSUBSCRIBE, END, QUIT, STOPALL or CANCEL for US and non US Long Code numbers, in accordance with industry standards. As of May 13, 2025, Twilio added REVOKE, and OPTOUT as additional opt-out keywords.

Learn More: Update to FCC's SMS Opt Out Keywords