How do I block unwanted callers?

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Getting nuisance calls? You can block them quickly using your TalkTalk phone features.

Start here – quick ways to block calls

Use CallSafe to automatically screen and block unwanted callers
Use Last Caller Barring to block specific numbers
Turn on Anonymous Caller Reject to stop hidden numbers

CallSafe is the perfect way to stop nuisance callers. Once you enable CallSafe you can use it to screen and block unwanted calls. Every time you get a call, CallSafe checks to make sure it's someone you want to hear from. The caller is then either:

Approved and put straight through to you.
Blocked so that your phone doesn't ring.
Screened to confirm who they are.

Before you start using CallSafe, please check that you meet our compatibility requirements .

Use Last Caller Barring if you want to block someone who’s already called you:

Block the last number that called
Add numbers to your block list
Block up to 100 numbers

Whenever someone tries to call you from a blocked number, they will hear a recorded message and you won't be disturbed by the call. You can block up to 100 different numbers using this feature.

Take a look at our article for more information on setting up and using Last Caller Barring .

Need more help?

If you’re still getting unwanted calls, check our guide on managing nuisance calls for more ways to stay protected.

Find out more about:

Need more information or help? Take a look at our guide to handling nuisance calls for further assistance.

CallSafe price update

Important: From 11^th January 2026 the price for CallSafe will be increasing to £1 a month. If you wish to continue to use CallSafe no action is needed, the £1 charge will automatically be added to your bill from 11th January. If you prefer to switch CallSafe off you should do so before 10th January 2026 in My Account: