Who called from 3012320073

Number now being used for cold-calling for ventilation system cleaning ("Safe Ducts").

Just got a call from this number. Answered and the caller hung up. I tried twice to call it back, but I couldn't get the call to go through.

No one was there when I answered.  They almost certainly have a computer placing calls.  The software's set to make more calls than their staff is ready to handle, so when you answer there's no one ready to speak with you.  That's pretty routine for call centers.  It's adds an extra layer of rudeness to an already rude action.

call to Maryland home phone.  cid sandy spring md.  no v/m.

Received a call (to my VA landline), no message left. Adding another to my block list.