Area Code 301-525 located in MONTGOMERY VILLAGE, MONTGOMERY, MD, more detail is as below. Place NPA (Numbering Plan Area) : 301 NXX (Local Number Prefix) : 525 City : MONTGOMERY VILLAGE County : MONTGOMERY State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 2004-01-27 FIPS (Federal Information Processing Standards) : 24031 LATA (Local Access Transport Area) : 236 Rate Center : GAITHERSBG ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 20886 Other Information NPANXX : 301525 County Population : 0 Switch CLLI (Common Language Location Identifier) : BLTMMD91DS2 MSA CBSA (Core Based Statistical Area) : Washington-Arlington-Alexandria, DC-VA-MD-WV MSA CBSA Code (Core Based Statistical Area) : 47900 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : QUANTUM TELECOMMUNICATIONS, INC. - MD OCN (Operating Company Number) : 2596 Coverage Area Name : GAITHERSBURG Latitude : 39.1431 Longitude : -77.2031 ‹ previous : 301-524 next › : 301-525 Telephone Number List 301-525-0000 ~ 301-525-9999