About this number
(301) 479-0020 is a landline based telephone number operated by McI Worldcom Communications, I and is located in zip code 22091 in the city of Wsng236Z13, Maryland, which is in Fairfax 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 479 and a subscriber number of 0020. It has an Operating Company Number (OCN) of 7228. A Common Language Location Identifier (CLLI) of RSTNVABHDS3. As well as a Local access and transport area (LATA) of 236.