About this number
(240) 772-9528 is a landline based telephone number operated by Level 3 Communications, LLC - and is located in zip code 21701 in the city of Frederick, Maryland, which is in Frederick County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 240, a Network Numbering Exchange (NXX - also known as a prefix) of 772 and a subscriber number of 9528. It has an Operating Company Number (OCN) of 6119. A Common Language Location Identifier (CLLI) of NOCLLIKNOWN. As well as a Local access and transport area (LATA) of 240. It was first assigned for usage on 05/28/2014. Zip code 21701 has a population of 35,293 as of the 2010 census.