I have started to get those phone calls again, however having call screening I normally allow it to go to answer machine. Occaisionally I will google them if I happen to be working on the computer, they are usually well known and are usually listed as accident/insurance/computer scammers or silent calls.
Today it was 0001274293163, and nothing at all when I searched online, five-ten minutes later and I get another. I look and it is 00274293163, again nothing online, but I also notice, perhaps you also did, that it is the same number without 01 near the beginning (Forgot to add both calls were less than required to activate the answer machine)
How is something like this possible, anyone know?