About this number
(301) 299-0011 is a landline based telephone number operated by Verizon Maryland, Inc. and is located in zip code 20817 in the city of Bethesda, Maryland, which is in Montgomery County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 301, a Network Numbering Exchange (NXX - also known as a prefix) of 299 and a subscriber number of 0011. It has an Operating Company Number (OCN) of 9212. A Common Language Location Identifier (CLLI) of BTHSMDBDDS0. As well as a Local access and transport area (LATA) of 236. Zip code 20817 has a population of 36,240 as of the 2010 census.