Area Code 484-210 located in THORNDALE, CHESTER, PA, more detail is as below. Place NPA (Numbering Plan Area) : 484 NXX (Local Number Prefix) : 210 City : THORNDALE County : CHESTER State : PA (Pennsylvania) NXX Use Type : Landline NXX Intro Version : 1999-10-13 FIPS (Federal Information Processing Standards) : 42029 LATA (Local Access Transport Area) : 228 Rate Center : MORTONVL ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 19372 Other Information NPANXX : 484210 County Population : 0 Switch CLLI (Common Language Location Identifier) : NWRKDEWWDS0 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 Overlay : L Company : CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - PA OCN (Operating Company Number) : 8347 Coverage Area Name : COATESVILLE Latitude : 39.9492 Longitude : -75.7721 ‹ previous : 484-210 next › : 484-212 Telephone Number List 484-210-0000 ~ 484-210-9999