Who called from 2159718655

Got a call from this number. No message left.

Called my mobile at 2:58 PM Eastern. No message left. Blocked with iOS.

Called my work number.  I answer.  Nothing.  They hang up.

Called my cell today but did not leave a message. I did not call them back.

Some resort deal. Same person and spiel as from another number I had blocked previously.  Me: hello. Hello? Caller: (apparently waiting just long enough to ascertain I wasn't a voicemail box ) "Oh! Sorry, a problem with my headset. Anyway, I'm calling because you stayed at one of our resorts in the past" at which point I hung up.