We got a phone call from 4-420-748-6873... where is that?

Question

I googled it and nothing comes back that explains it. Could it have been something like a collect call that my sister got while we were away? Or what? Has anyone ever dealt with this? Does anyone know what it is?

Answer 1

Definitely an international number. Anything that starts with a 1 is the US.

According to this website, 4-4 is the UK.

http://www.kropla.com/dialcode.htm

Answer 2

Yes it's a number from London, UK. 20 is the city code.

Answer 3

44 is the UK..