About this number
(304) 820 is a wireless/mobile based telephone number operated by Sprint Spectrum L.P.- Wv and is located in zip code 25401 in the city of Martinsburg, West Virginia, which is in Berkeley County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 304 and Network Numbering Exchange (NXX - also known as a prefix) of 820. It has an Operating Company Number (OCN) of 8575. A Common Language Location Identifier (CLLI) of MRBGWV236MD. As well as a Local access and transport area (LATA) of 240. It was first assigned for usage on 12/09/2005. Zip code 25401 has a population of 14,622 as of the 2010 census.