List of North American Numbering Plan area codes

List of North American area codesArea CodesNPAArea codeList of area codes in CanadaNorth AmericaNorth American area codeNPA area codeXXX
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.wikipedia
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Area codes 847 and 224

847847 & 224847 and 224
On January 5, 2002, area code 224 overlaid the 847 NPA and 10-digit dialing was implemented.

Area code 246

+1 246246+1246
Callers must simply dial 1 + NPA (area code) + seven digit phone number.

Area code 202

202Area codes in Washington, D.C.
List of North American Numbering Plan area codes