Area Code 301-872 located in RIDGE, SAINT MARYS, MD, more detail is as below. Place NPA (Numbering Plan Area) : 301 NXX (Local Number Prefix) : 872 City : RIDGE County : SAINT MARYS State : MD (Maryland) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 24037 LATA (Local Access Transport Area) : 236 Rate Center : RIDGE ZIP Code Count : 478 ZIP Code Frequency : 35 ZIP Code : 20680 Other Information NPANXX : 301872 County Population : 0 Switch CLLI (Common Language Location Identifier) : RIDGMDRIRS0 MSA CBSA (Core Based Statistical Area) : Lexington Park, MD MSA CBSA Code (Core Based Statistical Area) : 30500 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : VERIZON MARYLAND, INC. OCN (Operating Company Number) : 9212 Coverage Area Name : RIDGE Latitude : 38.1178 Longitude : -76.3713 ‹ previous : 301-872 next › : 301-873 Telephone Number List 301-872-0000 ~ 301-872-9999