How to Verify Phone Numbers
If you have a phone number and want to verify that it is valid, you can look it up and find out its status, or you can check it by calling the number with your phone. An online phone validator can tell you under what name a phone number is listed, whether it is for a landline or a cell phone, and what phone company services it.
Point your Internet browser to the free online service Phone Validator website (see "Resources").
Type the phone number into the search field, using dashes between the numbers. For example, type 555-555-1212.
Click the "Search" button to see the result.
Point your Internet browser to the free online service The Official WhitePages.
Type the phone number in the "Reverse Phone" field. Use dashes between the numbers. For example, type 555-555-1212.
Click the "Find" button to see the result.
Call the phone number in question.
Ask whomever answers to verify the phone number.
Leave your phone number if voicemail or an answering machine picks up your call,and ask for your call to be returned with the information.