About this number
(443) 408 is a landline based telephone number operated by Xo Maryland, LLC and is located in zip code 21201 in the city of Baltimore, 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 408. It has an Operating Company Number (OCN) of 4773. A Common Language Location Identifier (CLLI) of BLTMMDSNDS5. As well as a Local access and transport area (LATA) of 238. Zip code 21201 has a population of 16,972 as of the 2010 census.