About this number
(303) 531 is a landline based telephone number operated by McImetro Access Transmission s and is located in zip code 80265 in the city of Denver, Colorado, which is in Denver County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 303 and Network Numbering Exchange (NXX - also known as a prefix) of 531. It has an Operating Company Number (OCN) of 7229. A Common Language Location Identifier (CLLI) of DNVRCO37DS0. As well as a Local access and transport area (LATA) of 656.