About this number
(240) 357 is a wireless/mobile based telephone number operated by Cellco Partnership DBA Verizon and is located in zip code 21701 in the city of Frederick, Maryland, which is in Frederick 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 357. It has an Operating Company Number (OCN) of 6395. A Common Language Location Identifier (CLLI) of FRDRMDBACM1. As well as a Local access and transport area (LATA) of 240. It was first assigned for usage on 06/12/2006. Zip code 21701 has a population of 35,293 as of the 2010 census.