About this number
(503) 456 is a landline based telephone number operated by McImetro Access Transmission s and is located in zip code 97204 in the city of Portland, Oregon, which is in Multnomah 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 456. It has an Operating Company Number (OCN) of 7229. A Common Language Location Identifier (CLLI) of PTLDORWNDS0. As well as a Local access and transport area (LATA) of 672. Zip code 97204 has a population of 1,036 as of the 2010 census.