About this number
(240) 640 is a wireless/mobile based telephone number operated by Leap Wireless Intl, Inc. DBA C and is located in zip code 20024 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 and Network Numbering Exchange (NXX - also known as a prefix) of 640. It has an Operating Company Number (OCN) of 822. A Common Language Location Identifier (CLLI) of WASHDCSWXCY. As well as a Local access and transport area (LATA) of 236. It was first assigned for usage on 03/24/2009. Zip code 20024 has a population of 11,510 as of the 2010 census.