At least once a day, I receive a call from this number plus 7276239901. I think it is from a "Time Share" company. I submitted my name and number for a sweepstake and soon after that the phone calls started. The funny part is that no one ever says a thing.

Rcv'd a call today, Feb 15, 2012, at 2:40 PM EST from (727) 623-9902.  The lady identified herself as Jill from American Travel and wanted to confirm my address to put me in a drawing for a 7-night cruise.  She was pleasant and the call short.

Yes, just receive a call. Didn't recognize number so let it go to voice mail and they hung up.  The cruises, if it's from the company that think others have referred to, are no bargain.  Requirements for attend and listen sessions with spouse/partner. Likely from a drawing at a local community event - seems like everyone "wins".
Lesson Learned: Don't bother entering unknown organization drawings - home repair, siding, etc.

Why do you keep calling and never leave a message ?!!!!  STOP

You are mistaken.  We never call Me.  We only call You.  Are You Me?