What a scam! Even the name of the company sounds fake.
Got a call from this number today as a follow up to their earlier call. Their first call was from 1-213-363-5152 which I answered just to see how far they'd go. The initial call was from a company called m4sunset. They told me I'd won a prize to Cancun Meixco. They would give me all the details about my prize and at the end of the call I had to confirm if I accepted it or not. My 'Prize' : 6 days 5 nights in Cancun, Mexico and 5 days 4 nights in Florida for the 'too good to be true' cost of $598 USD. They also threw in some disney passes and ground transportation something. This so called vacation prize was valid for 2 years. All I had to do was confirm at the end of the call that I agreed to what was purchased and give them my credit card number. I said "Thanks but no thanks. I can't afford a $600 charge to my credit card right now."
The next day I got another call from them (caller id: Unknown number). They said I was a valued client and since I was not comfortable about the cost they were willing to give me a special rate of $349USD for both Cancun and Florida plus they'd through in another destination as Bonus. They called again today from this number 1-915-534-8299 to ask if I was still interested in their offer.
I didn't answer first time, but when it rang again right away I picked up and it was a friend that lives in Mexico calling. I think Lyle's post is spot on.