About this number
(240) 256-0011 is a wireless/mobile based telephone number operated by New Cingular Wireless Pcs, LLC and is located in zip code 20004 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 240, a Network Numbering Exchange (NXX - also known as a prefix) of 256 and a subscriber number of 0011. It has an Operating Company Number (OCN) of 4036. A Common Language Location Identifier (CLLI) of BTVLMD18GT0. As well as a Local access and transport area (LATA) of 236. It was first assigned for usage on 02/04/2003. Zip code 20004 has a population of 1,622 as of the 2010 census.