List of North American Numbering Plan area codeswikipedia
The North American Numbering Plan (NANP) divides the territories of its member countries into Numbering Plan Areas (NPAs), each identified by a three-digit code commonly called area code.
List of North American area codesNPAArea CodesList of area codes in Canada+1North AmericaNPA area codeArea codeXXXNorth American area code

Area codes 847 and 224

847847 & 224224
On January 5, 2002, area code 224 overlaid the 847 NPA and 10-digit dialing was implemented.

List of country calling codes

Country CodeDialing codeTelephone code
Member countries of the North American Numbering Plan (NANP) are assigned three-digit area codes under the common country prefix 1, shown in the format +1 XXX.

Telephone numbering plan

Area codeCalling codearea codes
The North American Numbering Plan (NANP) divides the territories of its member countries into Numbering Plan Areas (NPAs), each identified by a three-digit code commonly called area code.

North American Numbering Plan

Area codeArea codes<span style="white-space:nowrap;">Area code(s)
The North American Numbering Plan (NANP) divides the territories of its member countries into Numbering Plan Areas (NPAs), each identified by a three-digit code commonly called area code.