Sure it works. It confirms your number. You will get more junk phone calls now.
And the scammers know you are easily tricked into thinking that crooks will stop calling you because you press some number. LOL and you wonder why the scam calls never seem to stop.
Scammers love it when you call them back. Congrats.
Must be telemarketers. Received two calls from 360-322-6063 in the last 24 hours, and they left no message. I'm on the DNC list, for all that is worth.