Using the cell phone search online gives you the ability to type in any number to learn more about the person who owns the phone. If you find a number and do not recognize it, you can use the reverse phone lookup tools to find out more information. Using the reverse systems will connect you to detailed information if you use the paid subscriptions to trace cell phone numbers. Some of the programs online will charge nominal fees to find numbers, yet if you do not get results you will not have to pay a dime. Using the system you can find property reports, email addresses, cell phone IDs, and even conduct people searches and background checks. The databases are filled with information used by law enforcement and the government.