Anyone else keep getting automated calls from Cheap Trips dot com?

I get about one automated voice mail each day on my cell phone from a guy saying

I’ve not called the number and thought I was on the Don’t Call Telemarketer’s list, but I was just curious as to how widespread this call is. I’ll admit I’m also curious to what the catch is- whether the 4 free tickets are if you buy 12 more or whether they’re for 3 a.m. travel on Tuesdays between Des Moines and Syracuse in exchange for a $192 per handling fee. Just curious.

Just googled- nothing came up earlier because (duh) I’d misspelled cheaptrips (extra p) but apparently it’s anold scam. So now- how do I stop it?