Just got a call from 312-924-5636. Caller ID said "ICENET." Recorded female voice said that I had entered a contest (I hadn't of course) and have won a free cruise to the Bahamas. I hung up. Obviously a scam trying to sell a cruise or collect personal info to sell to other telemarketers. Best rule of thumb is to not answer any call from a number you don't recognize. If it's legit, they will leave a message on the answering machine or voicemail.