Area Code 240-291 located in HAGERSTOWN, WASHINGTON, MD, more detail is as below. Place NPA (Numbering Plan Area) : 240 NXX (Local Number Prefix) : 291 City : HAGERSTOWN County : WASHINGTON State : MD (Maryland) NXX Use Type : Wireless NXX Intro Version : 2003-02-09 FIPS (Federal Information Processing Standards) : 24043 LATA (Local Access Transport Area) : 240 Rate Center : HAGERSTOWN ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 21742 Other Information NPANXX : 240291 County Population : 0 Switch CLLI (Common Language Location Identifier) : MNRVMDMONMD MSA CBSA (Core Based Statistical Area) : Hagerstown-Martinsburg, MD-WV MSA CBSA Code (Core Based Statistical Area) : 25180 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Overlay : L Company : NEW CINGULAR WIRELESS PCS, LLC - DC OCN (Operating Company Number) : 4036 Coverage Area Name : HAGERSTOWN Latitude : 39.6425 Longitude : -77.7281 ‹ previous : 240-290 next › : 240-292 Telephone Number List 240-291-0000 ~ 240-291-9999