I have rec'd calls much like the "mega bucks sweepstakes" description with 9543248133, only they came directly from the 702-874-3285 on my cell phone.  The caller spoke with an accent from India..and suggested he wanted to VERIFY my credit card information. I hung up onhim and fortunately he called back and left a detailed message on voicemail and the information he has on file is not a current card.  I will call American Express and give them this fraud alert.

just got the same call from 876-859-9081 w/address 10 Miller Drive,Chicago,Il
says it's in conjuntion with publisher Clearing House

Got a call from this number on my cell, which I dont generally give out. ON May 31, 2008.
A man left a voicemail starting with my name, said he was with the "Mega Bucks Sweepstakes Lottery Company" calling in regards to a winning that they had with Me. And that they were calling, "with regards to my check, and its delivery." And gave a different number to call back, which is in Nevada. 702-874-3285