About AreaCodeAtlas.com

AreaCodeAtlas.com is a free reference tool for North American telephone area codes. We cover every area code in the NANPA (North American Numbering Plan Administration) system — including the US, Canada, and the Caribbean.

Each area code page includes the geographic region served, active cities, time zones, overlay codes, split history, and relief planning status. Data is sourced from NANPA public records and GeoNames.

This site is operated by Long Pattern LLC. We build reference tools on top of publicly available government and open datasets. AreaCodeAtlas.com is not affiliated with NANPA or any telecommunications carrier.

Questions or corrections? Contact us.