About Phone Validator Data

Our free phone search uses the area code, prefix and first number of the last 4 digits to determine if a phone is a landline or cell based on its original assignment in the North American Numbering Plan.

Our free search does NOT check to see if the phone number has been ported from one phone company to another or from a landline to a cell phone. Phone porting or "portability" is the process in which the owner of a phone number can switch from one phone company to another and not lose his or her phone number. Information provided on the free web lookup at PhoneValidator.com is based on the original assignment of the phone number via the North American Numbering Plan. However, information provided from our batch processing option DOES include a check if the number has been ported or not.


  • Works with U.S. based phone numbers only.
  • Use by humans (not bots) for personal or low volume commercial use is permitted. However we deploy CAPTCHA when automated or excessive use of the system is detected. We do not allow the harvesting, scraping or re-purposing of our data.
  • We do not store or share the phone numbers run at PhoneValidator.com with anyone else for any reason.
  • For businesses who need to process large files of phone numbers to identify which are cell numbers and which are landlines, we offer batch processing. Please click here for details. Please note our batch processing option includes ported phone number information. This includes landlines that have been ported to wireless.