About this number
(240) 455 is a landline based telephone number operated by Paetec Communications, Inc. - and is located in zip code 20166 in the city of Sterling, Maryland, which is in Loudoun 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 455. It has an Operating Company Number (OCN) of 4716. A Common Language Location Identifier (CLLI) of STNGVA08DS0. As well as a Local access and transport area (LATA) of 236. It was first assigned for usage on 06/20/2001. Zip code 20166 has a population of 9,521 as of the 2010 census.