This was a reminder from TracFone that a phone subscription was about to run out. There was a lot of static on the line. A United Nations site indicates that this is a unused area code for South-Central Asia. Another site shows the number being listed to Digital Design Inc. in Nashville, TN. Digital Design does offer VoIP (Voice over IP) internet phone service. Interesting that a reputable (?) company such as TracFone would mask their identity.