Received call from 438 793 8980  at 6:21 pm July 4, 2014 on my home phone.  It only rang a couple of time, then stopped.  

Exactly 5 minutes later my cell phone rang, same number.  Only a handful of people and a few business contacts have my cell phone number.

No messages on either phone.  

The happens every few days.

National do not call lists do no work.