Blocking "Unknown" number

[Anonymous]

Hi all,

Done a google search but the suggestions for blocking unwanted calls are simply to block the Number which I already knew, but what I cant find out is how to block a number that comes up as "Unknown" on my phone.

I've been pestered by this for months and even when answering and telling them to bugger off they keep ringing back (PPI usually), is there anyway to block "Unknown" callers?

Thanks

[Bambino]

I don't believe there is, as some legitimate companies or individuals withold their numbers. I doubt that any network can do that.

[Anonymous]

One other option is to ask O2 to change your mobile number which is free the first time.

Or ask for their company details and draw up a complaint e mail.

Try here too.

It may or may not help.

http://www.tpsonline.org.uk/tps/mobile/index.html

[MI5 · Accepted solution]

Some phones have the feature built in and again, depending on phone there may be an app available.