Who called from 2143965554

Just got a call...I said hello 3x - no one talked, no message, nada, nothing.  I suspect they will call back since I answered.  Dang

Received call from this number on a DOE (Dept of Energy) cell phone.  Left no voice mail message

I to just received a call from this number on my work phone.  Spam phone call

ditto all above

Didn't answer, didn't recognize #.  Called my cell phone.  Claim they rec'd permission from "my credit card co" to contact me about lowering interest rate.  I don't have credit card and haven't in years.