About this number
(410) 374 is a landline based telephone number operated by Verizon Maryland, Inc. and is located in zip code 21074 in the city of Hampstead, 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 410 and Network Numbering Exchange (NXX - also known as a prefix) of 374. It has an Operating Company Number (OCN) of 9212. A Common Language Location Identifier (CLLI) of HMPSMDHERS1. As well as a Local access and transport area (LATA) of 238. Zip code 21074 has a population of 15,084 as of the 2010 census.