Skip to main content
Help Center

How to supply your phone number

A valid phone number is a real working telephone number. This is normally what is meant when a website asks you to enter a valid phone number or if you are asked to give a valid phone number on a form. A valid phone number is a number that connects to a working telephone line.


  • U.S. Phone Number: XXX-XXX-XXXX
  • International Phone Number: +X-XXX-XXX-XXXX - When phone numbers are published for use abroad they typically include the country calling code, but replace the international call prefix with "+" to signify that the caller should use the prefix appropriate for their country.

Still need help?