nanp
Test if a string is a North American Number Plan (phone) number.
Test if a string is a North American Number Plan (phone) number.
Simple library to validate if a phone number is valid according to the North American Numbering Plan.
A tool to generate only numbers that comply with the North American Numbering Plan
List of in-service (active and valid) U.S. area codes (NPAs) according to the North American Numbering Plan Administrator (NANPA)