Area Code 302-220 located in NEW CASTLE, NEW CASTLE, DE, more detail is as below. Place NPA (Numbering Plan Area) : 302 NXX (Local Number Prefix) : 220 City : NEW CASTLE County : NEW CASTLE State : DE (Delaware) NXX Use Type : Wireless NXX Intro Version : 1996-10-15 FIPS (Federal Information Processing Standards) : 10003 LATA (Local Access Transport Area) : 228 Rate Center : NEW CASTLE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 19720 Other Information NPANXX : 302220 County Population : 0 Switch CLLI (Common Language Location Identifier) : LPTPPADFCM0 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 : NEW CINGULAR WIRELESS PCS, LLC - DC OCN (Operating Company Number) : 4036 Coverage Area Name : NEW CASTLE Latitude : 39.6674 Longitude : -75.5666 ‹ previous : 302-219 next › : 302-221 Telephone Number List 302-220-0000 ~ 302-220-9999