There are an increasing number of paid sites that offer a cell phone number search. These sites have powerful computer programs that hunt down and gobble up any phone number that is found on the internet.

An unlisted number enables people to enjoy their privacy. You can pick, choose and refuse the people who you desire to give your number to. The boundaries however, are slowly but surely closing in.

Unlisted numbers are deposited into the google databank on a daily basis. The key is that these numbers are freely deposited. Here is how! Lets say you are hard up for a few dollars. You decide to get rid of a few expensive family heirlooms.

You make your way to the local newspaper and run an ad. Included in the ad is your unlisted cell phone number and maybe even your girlfriends number. If you are really hard up for quick cash, you may even have also included your address. Are you aware that most newspapers can be found on the internet?

Have you ever heard of search spiders and crawlers? These are automated programs that search websites for content. When they come to a newspaper website they gobble up the information; (search engine crawlers love content), including phone numbers.

These search engine crawlers dutifully take your information, which you freely gave to the newspaper and hand it over to their masters, at the google database.

Along comes someone conducting a free cell phone number search. They want a name to match a specific number. If they are lucky, they will get an address as well.

Somewhere far away your number goes into the number lookup. Unfortunately, you gave your unlisted phone number, your address, your girls number and whatever else. Google immediately rushes to its database and proudly boasts that it found your unlisted information in 2.1 seconds.

Finding information using the number lookup is not always as cut and dried as that. Most times it is a bit more involved. But make no mistake, even the unlisted cell phone number that you put on a website registration form will be found by the search engine crawlers.