About this number
(303) 515 is a landline based telephone number operated by Onvoy, Inc. - Co 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 303 and Network Numbering Exchange (NXX - also known as a prefix) of 515. It has an Operating Company Number (OCN) of 273F. A Common Language Location Identifier (CLLI) of HNSNCO02PS0. As well as a Local access and transport area (LATA) of 656. It was first assigned for usage on 11/14/2011.