There are 0 phone number prefixes within area code 503. The location of calls from area code 503 is unknown.
Choose a phone number from the list below to browse user reports for . You can also use the search box above to search for user reports about any phone number, or to file a report about any phone number.
Unable to browse prefixes for area code 503. This may be because the area code is associated with a non-US, non-Canada number for which limited info about prefixes is known. You can still lookup details about a number under area code 503 by using the search field at the top of this page.