About this number
(303) 538 is a landline based telephone number operated by Qwest Corporation and is located in zip code 80221 in the city of Denver, Colorado, which is in Adams 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 538. It has an Operating Company Number (OCN) of 9636. A Common Language Location Identifier (CLLI) of NGLNCOMADS0. As well as a Local access and transport area (LATA) of 656. Zip code 80221 has a population of 37,779 as of the 2010 census.