503 Area Code Map

503 Area Code Map

Area codes 503 and 971 Wikipedia NANPA : Number Resources NPA (Area) Codes.

503 Area Code Location map, time zone, and phone lookup Benton County Area Code, Oregon | Benton County Area Code Map.

503 Area Code Location map, time zone, and phone lookup Area Codes for Portland, Oregon | Call Portland, OR.

File:Oregon Area Codes.PNG Wikimedia Commons Canadian Area Code Listings and Map.

Area codes 541 and 458 Wikipedia Oregon Area Code Map.