About this number
There is 1 comment for this phone number. (301) 979-7857 is a landline based telephone number operated by Level 3 Communications, LLC - and is located in zip code 20877 in the city of Gaithersburg, Maryland, which is in Montgomery County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 301, a Network Numbering Exchange (NXX - also known as a prefix) of 979 and a subscriber number of 7857. 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 236. It was first assigned for usage on 11/28/2006. Zip code 20877 has a population of 34,321 as of the 2010 census.