Who called from 2622219979

Same here.  Called but hung up after a ring or 2.

Called and hung up immediately without me answering.

I've also been getting calls from this number. I answer they hang up.

Called and immediately hung up

Called me. Hung up. I called back and it said I had a $100 rebate coming from a store I recently visited. It was a recording. I hung up.  That's a Milwaukee area phone number (Waukesha county).