About this number
(571) 451 is a landline based telephone number operated by Ctc Communications Corp. - Va and is located in zip code 20036 in the city of Washington, Virginia, 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 571 and Network Numbering Exchange (NXX - also known as a prefix) of 451. It has an Operating Company Number (OCN) of 2700. A Common Language Location Identifier (CLLI) of WASHDCMTX7X. As well as a Local access and transport area (LATA) of 236. It was first assigned for usage on 06/13/2005. Zip code 20036 has a population of 5,435 as of the 2010 census.