About this number
(503) 443 is a landline based telephone number operated by Frontier Communications Northw and is located in zip code 97223 in the city of Portland, Oregon, which is in Washington County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 503 and Network Numbering Exchange (NXX - also known as a prefix) of 443. It has an Operating Company Number (OCN) of 4323. A Common Language Location Identifier (CLLI) of TGRDORXACG0. As well as a Local access and transport area (LATA) of 672. Zip code 97223 has a population of 46,699 as of the 2010 census.