About this number
(301) 966 is a landline based telephone number operated by McImetro Access Transmission s and is located in zip code 20011 in the city of Washington, Maryland, which is in District Of Columbia County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 301 and Network Numbering Exchange (NXX - also known as a prefix) of 966. It has an Operating Company Number (OCN) of 7229. A Common Language Location Identifier (CLLI) of WASHDCINDS0. As well as a Local access and transport area (LATA) of 236. Zip code 20011 has a population of 58,536 as of the 2010 census.