About this number
(720) 423 is a landline based telephone number operated by Qwest Corporation and is located in zip code 80218 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 720 and Network Numbering Exchange (NXX - also known as a prefix) of 423. It has an Operating Company Number (OCN) of 9636. A Common Language Location Identifier (CLLI) of DNVRCOCHDS0. As well as a Local access and transport area (LATA) of 656. It was first assigned for usage on 04/22/2004. Zip code 80218 has a population of 17,928 as of the 2010 census.