Samsung
Block a Phone Number auf Samsung
Unwanted calls or spam texts usually keep coming from the same number, and saving it as a contact just to block it feels unnecessary. Samsung builds a dedicated block list directly into the Phone app, separate from your contacts, so you can add any number manually or pull it from your call history.
Once a number is blocked, One UI silently rejects incoming calls from it and filters out any SMS. You will not see missed-call notifications or message previews for blocked senders, and they get no indication the call was rejected on your end.
Where to find the block list
Open Phone ➔ Open the Menu ➔ Tap on Settings ➔ Tap on Block numbers. From there choose Recents, Contacts or Add phone number depending on where the number is coming from.
If you pick Add phone number, type the number and tap Add to confirm. The number appears in the list immediately and blocking takes effect right away, no restart needed.
Blocking works for both calls and standard text messages. It does not stop messages sent through third-party apps unless that app has its own blocking feature, so check there too if the contact keeps reaching you through a chat app.