About this number
(240) 231-0104 is a landline based telephone number operated by Core Communications, Inc. - Md and is located in zip code 21771 in the city of Mount Airy, Maryland, which is in Carroll 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 231 and a subscriber number of 0104. It has an Operating Company Number (OCN) of 2593. A Common Language Location Identifier (CLLI) of MTARMDSD00T. As well as a Local access and transport area (LATA) of 240. Zip code 21771 has a population of 29,563 as of the 2010 census.