How do I block unwanted callers?
CallSafe Update
Important: From 11th 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:
- Log in to My Account
- Head to offers and upgrades
- Select Manage CallSafe
- Choose Switch off CallSafe
If you have CallSafe enabled we'll have reached out to you to explain your options.
If you’re experiencing nuisance callers, then take a look at the below features to help block unwanted calls .
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:
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Approved and put straight through to you.
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Blocked so that your phone doesn't ring.
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Screened to confirm who they are.
Before you start using CallSafe, please check that you meet our compatibility requirements .
Last Caller Barring is another great way to block unwanted callers. You can use it to block the last number that called you or you can enter specific numbers you want to bar, all for free.
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 .
What else can help?
In addition to CallSafe and Last Caller Barring, you may find some of our other call features helpful when it comes to dealing with nuisance callers.
Find out more about:
Need more information or help? Take a look at our guide to handling nuisance calls for further assistance.