i don't think it's from facebook either. my number is on there, but not published publicly, and they used my name in lowercase. obviously some other source we've all registered at somewhere.

btw, mine came from a 660 area code.

I dont think it is from facebook.. I got it and my mobile number is not on my facebook at all... not even hidden.

MAJOR SCAM DO NOT CLICK THROUGH OR GIVE THEM ANY INFORMATION!!!
Just went to http://giveprizes.com and it's obviously a phishing scam. They have a Best Buy logo and a graphic of a store (not a pic). It says "Get a free $1000 Best Buy gift card. Participation required. Click (hyperlink) for details." Then there are fields for your first and last name, email and cell phone. Below it is a "disclaimer" that states:
Best Buy is a registered trademark of BBY Solutions, Inc. onlinerewardsclub.com is not affiliated with Best Buy® and all Best Buy® trademarks are the property of Best Buy®. onlinerewardsclub.com does not, in any way, claim to represent or own any of the Best Buy® trademarks or rights. Best Buy® does not own, endorse, or promote onlinerewardsclub.com or this promotion.

This Gift Program is not endorsed, sponsored by or affiliated with the manufacturers and retailers of the gift items listed above in anyway. All trademarks, service marks and logos are property of their respective owners.

THE FOLLOWING IS A SUMMARY OF PROGRAM REQUIREMENTS. SEE TERMS & CONDITIONS FOR COMPLETE DETAILS. Members are being accepted subject to the following Program Requirements: 1) Must be a legal US resident; 2) must be at least 18 years old or older; 3) must have a valid email and shipping address; 4) Eligible members can receive the incentive gift package by completing two reward offers from each of the Silver and Gold reward offer page options and nine reward offers from the Platinum reward offer page options and refer 3 friends to do the same. Various types of reward offers are available. Completion of reward offers most often requires a purchase or filing a credit application and being accepted for a financial product such as a credit card or consumer loan. The following link illustrates a Representative Sample of reward offers by group along with monetary and non-monetary obligations. Failure to submit accurate registration information will result in loss of eligibility. This promotion is administered solely by this website. This promotion is void where prohibited by law. Please read the Terms and Conditions for complete program details. Your information will be shared with our marketing partners. Please read the Privacy Policy for more details.

They are obviously trying to legitimize themselves by having this disclaimer. DO NOT FALL FOR IT!! They want you to "register" and provide all of your personal information, which they will most likely use to steal your identity and destroy your credit.

It came from your facebook page

I got a text at 5:35 am (argh!) from 303-578-1635 which used my first name and said "You've been chosen to get a free BestBuy Giftcard. Please go to http://giveprizes.com within 24 hours. No such site exists. Creepy that they used my name!!!!

told to go to same site   none exists   came from 769  area code

Got the same text from (618) 715-0398 claiming there was a best buy gift card waiting. Definitely want to know how these companies are getting my number. It's not the first text marketing I've received.

same here 2 1/2 hours ago 231-333-5625 from Best Buy
It was a text

Same thing, only from best buy. 509-896-4570. 20 min ago

recieved a txt message from this number stating I won a Wallmart gift card for the upcomming 2011 holiday season.  Looked it up and also it led me to this sight.  Oh well!!?

i got the SAME text a few min ago  that when i googled the number led me to this  -  and mine is coming from a 503 area code?

Told me I had won a walmart gift card.  Not sure how they got my name and cell phone number. said to log on to "http://giveprizes. com to claim it now!"  no such website.