Who called from 2143775979

I got a call from this number this morning.

Called and left no message.

I keep getting calls from this number. When I call back I get an announcement indicating the call cannot go through. It is very likely like a scam phone.

Receiving calls from this number daily for the past two days.  No messages left.

Wife's at home healing after surgery, and getting 6-8 calls today from these folks, selling Carpet Cleaning services.  Had a supervisor tell her he'd take us out of the queue, then got call number 8 a while ago.  Dallas number... United Air Ducts?