How to Silence Unknown Callers on WhatsApp
Stop spam and scam calls from unknown numbers ringing your phone on WhatsApp. How to turn on Silence unknown callers, and what still reaches you afterwards.
WhatsApp calls from numbers you do not know, often from abroad, are a common way for scammers to start a conversation or check that a number is active. A single setting stops them ringing your phone.
How to turn it on
- Go to Settings, then Privacy.
- Tap Calls.
- Turn on Silence unknown callers.
What changes, and what does not
- Calls from numbers not in your contacts no longer ring.
- They still show in your Calls list and notifications, so you can decide later.
- Messages from unknown numbers still arrive. Treat them with care. See how to tell if a WhatsApp message is a scam.
- People you have chatted with or saved can still call normally.
Silencing calls also helps against video call blackmail, which often begins with an unexpected video call from a stranger.
Other calls to watch for
- Calls claiming to be from police, tax offices or embassies. See government impersonation calls.
- Missed calls designed to make you call back. See missed call tricks.
- Voice notes or calls that sound like someone you know. See AI voice notes.
For more, see our complete guide to WhatsApp scams.
Frequently asked questions
Will I miss important calls?
Silenced calls still appear in your Calls list and notifications, so you can see them and call back if you recognise the caller.
Does it block messages from strangers?
No. It only silences calls. Messages from unknown numbers still arrive.
Should I call back a missed international number?
No, not unless you know who it is. Missed calls are sometimes used to get you to call back or to check your number is active.
Sources
- How to silence unknown callers, WhatsApp Help Center
- Account security tips, WhatsApp Help Center
- Phone Scams, US Federal Trade Commission
