Who called from 7708540603

Calls coming in from this number which I believe to be from National Enterprise Systems a debt collector.  Immediately after getting this call which was blocked we received a call on my cell looking for wife from 678-929-4369.  This number came up Out of Area.

this number calls my phone everyday. i never answer the house phone unless i see who it is on caller id. i wish they would stop call  me