List of future North American area codes
This is a list of future area codes in the North American Numbering Plan, which are intended to be used as needed for additional telephone numbers in various locations. Relief formats and dates are subject to change. All new area codes below will be in the "overlay" format.List
†Indicates planned overlay of multiple area code regions.
*Indicates exhaust date of the existing area code that will require relief. Others with exhaust dates within three years that currently do not have an approved relief plan and relief area code: 202, 289/365/905, 303/720, 305/786, and 404/770/470/678.
