What do you know?  I won 25k and need to call them back...  No thanks.

Here's the message left:
"Hi, Jalen here with the gift redemption department giving you a follow up call in regards to the $25,000 cash summer give away that was sponsored sometime back within the last 8 months.  We're looking at your name and number we have very good news for you. What we need you to do as soon as possible is give us a call here, toll free in the office at 1 888 510 5221. Again, that's toll free 1 888 5110 5221. We do need to hear from you as soon as possible and congratulations."

I got the same call yesterday. At first, I did wonder if this was a "real" call, since I did enter a $25K sweepstakes last month through Better Homes & Gardens. Then I remembered I'd only given the sweepstakes my email, not my phone. I wonder if that's the people they're targeting!?!

It is a scam.
The callers are con artists and off shore criminals who call random numbers and then try to convince you that you have won, just pay an upfront fee to process the winning and/or taxes.
They take your money, you get nothing in return.
https://www.consumer.ftc.gov/articles/0199-prize-scams

Hang up, block their number, and report the call to the FTC:
https://www.ftccomplaintassistant.gov/

Pure 100% Scam