Re:FCC orders phone companies to help trace illegal robocallers
by diebeforei485 on Thursday December 31, 2020 @04:29PM
(#25597364)
There is also a Screen Time feature called Communication Limits which can be used to restrict Messages and Phone to contacts only. Doesn't apply to third-party apps though.
FWIW, T-Mobile does allow you to block all SMS and MMS.