About this number
(443) 612 is a landline based telephone number operated by Verizon Maryland, Inc. and is located in zip code 21228 in the city of Catonsville, Maryland, which is in Baltimore County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 443 and Network Numbering Exchange (NXX - also known as a prefix) of 612. It has an Operating Company Number (OCN) of 9212. A Common Language Location Identifier (CLLI) of CTVLMDCTDS0. As well as a Local access and transport area (LATA) of 238. Zip code 21228 has a population of 47,577 as of the 2010 census.