Area Code 610-205 located in KING OF PRUSSIA, MONTGOMERY, PA, more detail is as below. Place NPA (Numbering Plan Area) : 610 NXX (Local Number Prefix) : 205 City : KING OF PRUSSIA County : MONTGOMERY State : PA (Pennsylvania) NXX Use Type : Landline NXX Intro Version : 1997-01-11 FIPS (Federal Information Processing Standards) : 42091 LATA (Local Access Transport Area) : 228 Rate Center : PHPHSBZN30 ZIP Code Count : 154 ZIP Code Frequency : 99 ZIP Code : 19406 Other Information NPANXX : 610205 Switch CLLI (Common Language Location Identifier) : KGPRPAKPDS0 MSA CBSA (Core Based Statistical Area) : Philadelphia-Camden-Wilmington, PA-NJ-DE-MD MSA CBSA Code (Core Based Statistical Area) : 37980 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : VERIZON PENNSYLVANIA, INC. OCN (Operating Company Number) : 9208 Coverage Area Name : KING OF PRUSSIA Latitude : 40.1006 Longitude : -75.3925 ‹ previous : 610-204 next › : 610-206 Telephone Number List 610-205-0000 ~ 610-205-9999