About this number
(443) 273-0006 is a landline based telephone number operated by Teleport Communications Americ and is located in zip code 21045 in the city of Columbia, Maryland, which is in Howard County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 443, a Network Numbering Exchange (NXX - also known as a prefix) of 273 and a subscriber number of 0006. It has an Operating Company Number (OCN) of 7325. A Common Language Location Identifier (CLLI) of CLMAMDNIDS1. As well as a Local access and transport area (LATA) of 238. Zip code 21045 has a population of 38,288 as of the 2010 census.