phone numbers originating in North Carolina are becoming predictable to the extent that I had a hunch it was from "this is Joe Collins calling from the NC Troopers Association.."

...called back from my cell phone:
    (a live person answered) "...hello..."
    ( me) "..someone called my home from this number..."
    "...this is Joe Collins from the NC Troopers Association...

                                                 suspicion confirmed