The usual scam...
mobiletestandkeep.com is in France, code # takes you to http://www.samplerewardsonline.com/
Which tries to get you to sign up and requires a bunch of purchases related to some sort of credit card.
Reported to the FCC (as usual)

------ SMS Text ------
From: 4074437837
Sent: Feb 2, 2012 4:39 AM
Subject: Apple is looking for iPhone 5...

Apple is looking for iPhone 5 testers! The first 1000 users that go to http://mobiletestandkeep.com & enter code 8183 will get to test & keep a new iPhone5.

I got sms from this number and it's spam!

I also got that message! But the number is 917-373-8726 It looks like NY - It's the same exact message but the website is: www.iphone5tester.us and the code is 7777!
I went to that website and it looked "normal" but of course, too good to be true lol
Mina, how did you know it's a spam?!

I got the same text but from 407-446-6514. THIS IS A SCAM OF COURSE.

I got the same text but from 407-443-9428.