About this number
(720) 577-1428 is a landline based telephone number operated by Level 3 Communications, LLC - and is located in the city of Denver, Colorado and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 720, a Network Numbering Exchange (NXX - also known as a prefix) of 577 and a subscriber number of 1428. It has an Operating Company Number (OCN) of 6118. A Common Language Location Identifier (CLLI) of NOCLLIKNOWN. As well as a Local access and transport area (LATA) of 656. It was first assigned for usage on 07/03/2014.