Track the owner of any cell phone or unlisted number-US.

Nothing is confidential any more.

Find out the owner of any cell phone or unlisted number. Results include name, address, carrier, and other details when available. Your search is confidential.

http://www.phonedetective.com/PD.aspx?_act=search_app&hop=1000ideas&site=pd&utm_source=worldviewupdate.com&utm_medium=cb&utm_campaign=1000ideas&ucb=1

Do you have Caller ID? How helpful is it when an anonymous number shows up? Not very helpful, is it? Especially if it’s an annoying prank caller giving you trouble.

So Do You Want To Find Out Who It Is? – If the answer is yes then let me introduce you to your new best friend.Reverse Cell Phone Look up is the easiest, the fastest and 100% confidential way to get the details you need. All you need is the cell number and you are set to go.

But How Is It Possible? Aren’t Cell Numbers protected and Unlisted? – Yes, they are but some companies have access to databases with these details. These databases are maintained for emergency reasons. You too can access them through these companies. And the best part about it is that you can try as many numbers as and when you want.
Beware! How Do You Choose The Best Database? You need to remember three things.
1.    The database should have at least 200 Million in numbers – Why? USA has an estimated over 250 million mobile users. Smaller the database size, the higher the chance you won’t find the number you’re looking for
2.    It should be accurate – This is important because you don’t want to end up with the wrong details. So accuracy is a must.
3.    Details should be up-to-date – Some companies update their details every 15 minutes. They offer a higher guarantee that the details you want are current and not outdated. An outdated service simply tell you who the previous owner of that number was instead of the current owner

http://r3v3rs3cpl00kup.wordpress.com/2010/12/30/find-someones-name-using-a-cell-phone-number-three-things-you-must-pay-attention-to-beware/

ReversePhoneCaller.com today announced the launch of its site and service to quickly locate any landline number or a cell phone number for people who want to gather more information about unknown people calling or sending them text messages. There are a lot of situations when someone needs to use this service. After receiving unwanted or uncomfortable phone calls, getting a free reverse phone lookup is the best strategy to disarm the caller. Unwanted phone conversations are annoying and stressful. ReversePhoneCaller.com allows its customers to find out where the calls came from and the identity of the caller, even for unlisted phone numbers. The reverse phone finder works with landlines and cell phone numbers as well.

http://www.prweb.com/releases/reverse-lookup-phone/reverse-phone-caller/prweb5124184.htm

A Reader suggests mr trace.com for US, Canada,

You can send us any U.S. or Canada telephone number: landline, cell, payphone, non-published and unlisted phone number.

Confidentiality.

Non-published and unlisted numbers also supported.

http://mrtrace.com/