Who called from 2394433940

Call comes from this number 3-4 times a day.

Received several calls from this number the last few days..Driving me crazy..

This number 239 comes up and it is a magazine company saying I am being billed for magazines I receive and I do not , nor have I ever ordered magazines in the mail.  When I called back it said it was not a working number obviously so how can I ensure I am not being billed for these crazy things and how did they know my address!

started getting calls from this number and i dont know who it is. they leave no voice mail, no nothing.