Who called from 3079200621

Our firm has been getting between 12 to 18 calls a day from 307-920-0621.  No one is there and the phone is not valid when you try to call it back.    This weekend the number called our system 30 times.   We have reported it to AT&T but they tell us we need to report to fraud units.

I just got a call from this number (and one the other day as well). When I answered it was a pre-recorded message in Spanish. No clue what they said.

Yeah, I got a call from this number.  I didn't pick up because, Wyoming?  No voicemail left.

Got a call from yesterday and today.  Found out it is a cell phone from Wyoming.  Didn't answer either time. Don't recognize the number I won't answer the phone.

Received a missed call from this number - no voicemail.  Looked it up here first - I'm not going to bother calling back.