NANPA Number Resources NPA (Area) Codes
NANPA Number Resources NPA (Area) Codes >> Area code 504 louisiana : There are two other area codes serving the state of oregon; NANPA Number Resources NPA (Area) Codes from nationalnanpa.com Check out our area code 503 selection for the very best in unique or custom. handmade pieces from our shops. Check out our area code 503 selection for the very best in unique or custom. handmade pieces from our shops. Area code 503 covers cities and towns located in the northwestern corner of oregon.