About this number
(720) 397 is a landline based telephone number operated by At&T Local and is located in zip code 80202 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 397. It has an Operating Company Number (OCN) of 7421. A Common Language Location Identifier (CLLI) of DNVRCOMAX5Z. As well as a Local access and transport area (LATA) of 656. It was first assigned for usage on 09/08/2009. Zip code 80202 has a population of 10,148 as of the 2010 census.