Who called from 7707900034

For last several weeks this number has been calling my cell - no message it rings 3 times and attempts to call day and evening.

same for me, leaves no message

I get calls on my cell from this number - called the number back from work fax machine (so they wouldn't see my cell number) and recording that it is a newspaper subscription service.

Aways calls in A.M.everyday.  I don't answer the phone.

Has called 4 times. Hangs up when I answer.