Messages

You cannot block those. You can however setup and use the Filter Unknown Senders feature so that you can identify those unwanted messages. Open Settings ➡️ Messages ➡️ Filter Unknown Senders: Set this to ON.

Axel F.

DYNO80 Said:

"messages: How to block scam messages when there is no BLOCK THIS CALL in information"

-------

Blocking Out Spammers:

Use Malwarebytes Mobile Security. The free version blocks popups. The paid version blocks out known spam numbers. So, consider using it. Read the following post to see how to use this software: Blocked numbers - Apple Community