About this number
(443) 589 is a landline based telephone number operated by Us Lec Of Maryland, Inc. and is located in zip code 21046 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 and Network Numbering Exchange (NXX - also known as a prefix) of 589. It has an Operating Company Number (OCN) of 2589. A Common Language Location Identifier (CLLI) of CLMAMDJTDS0. As well as a Local access and transport area (LATA) of 238. Zip code 21046 has a population of 15,080 as of the 2010 census.