111

The number is probably a fake (spoofed) one and you may not even be able to call back. Honest people do not do that.

Same call 3 years later wtf

Just got a call from 111 and didn’t answer what’s that number?
-Doha- State of Qatar

You must be really creeped out, you posted in the wrong thread. Try this:
https://whocallsme.com/Phone-Number.aspx/1112765392

how do I find out who is calling me from #111

You can't. You won't. This is not a call you want to answer, only scammers do this sort of thing.

To Poster "Phone Call Comment":  111 might be a number YOU Call, not one that would be texting you. And that is only in areas concerned with NHS.  Most of the reports here were connected to calls and texts in the USA.