About this number
(301) 428 is a landline based telephone number operated by Verizon Maryland, Inc. and is located in zip code 20767 in the city of Wsngtnzn10, Maryland and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 301 and Network Numbering Exchange (NXX - also known as a prefix) of 428. It has an Operating Company Number (OCN) of 9212. A Common Language Location Identifier (CLLI) of GMTWMDGNDS0. As well as a Local access and transport area (LATA) of 236.