Area Code 202-397 located in WASHINGTON, DISTRICT OF COLUMBIA, DC, more detail is as below. Place NPA (Numbering Plan Area) : 202 NXX (Local Number Prefix) : 397 City : WASHINGTON County : DISTRICT OF COLUMBIA State : DC (District of Columbia) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 11001 LATA (Local Access Transport Area) : 236 Rate Center : WSHNGTNZN1 ZIP Code Count : 906 ZIP Code Frequency : 42 ZIP Code : 20019 Other Information NPANXX : 202397 County Population : 0 Switch CLLI (Common Language Location Identifier) : WASHDCBNCG0 MSA CBSA (Core Based Statistical Area) : Washington-Arlington-Alexandria, DC-VA-MD-WV MSA CBSA Code (Core Based Statistical Area) : 47900 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : VERIZON WASHINGTON, DC INC. OCN (Operating Company Number) : 9211 Coverage Area Name : WASHINGTON Latitude : 38.8989 Longitude : -76.9759 ‹ previous : 202-396 next › : 202-397 Telephone Number List 202-397-0000 ~ 202-397-9999