It gives you a nice article about how to go about searching for a reverse cell phone number with free tools. Here’s the article in case you can’t click through:

Searching for Reverse cell phone numbers is a thankless task mainly because of the lack of freely available information. Getting contact details for a cell phone number is more than likely going to cost you a small fee, unless your adversaries have been careless in what they do with their personal information.

You see, if you’re lucky – there is a technique for finding cell phone & unlisted phone numbers for free – using free resources.

Notice I said “if you’re lucky” there? That’s because this technique relies on your “target” being rather careless in where they post their address & personal information in places such as forums, chat rooms or even MySpace.

Using this free technique, we’re going to try and find if your target has posted any personal information and if so, we will grab it.

This is possible because if your target likes to use social sites, such as MySpace and they are not adverse to giving away contact information – they most probably have put their cell phone number up in the form of “xxx-xxx-xxxx” or “xxx-xxxx” depending on whether they include an area code.

To conduct a free lookup, you should head over to Google.com and type the phone number in quotation marks. This should bring up only results with that exact search term in.

If that brings up no results, it would be wise to look on MySpace.com or even the likes of Craigslist.org to see if your contact has been on those.

Failing that, and evidently your target is keeping their personal information a secret, then it would be worth performing a reverse cell phone number lookup for paid contact details.

This form of paid reverse cell phone number look up guarantees to find the address & contact information for any cell phone & unlisted number from an extensive US numbers database.

You could also use this resource too: http://reversecellphonelistings.com/2007/10/30/free-reverse-cell-phone-lookup-tutorial/

It basically says the same thing.

Both articles want you to go to http://reversecellphonesearcher.com in order to perform a comprehensive guaranteed reverse cell phone lookup

Hope that helped?