Area Code 657-200 located in WESTMINSTER, ORANGE, CA, more detail is as below. Place NPA (Numbering Plan Area) : 657 NXX (Local Number Prefix) : 200 City : WESTMINSTER County : ORANGE State : CA (California) NXX Use Type : Landline NXX Intro Version : 8/8/2008 FIPS (Federal Information Processing Standards) : 06059 LATA (Local Access Transport Area) : 730 Rate Center : WESTMINSTR ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 92683 Other Information NPANXX : 657200 MSA CBSA (Core Based Statistical Area) : Los Angeles-Long Beach-Santa Ana, CA MSA CBSA Code (Core Based Statistical Area) : 31100 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Overlay : L Company : METROPCS NETWORKS, LLC OCN (Operating Company Number) : 899D Coverage Area Name : WESTMINSTER Latitude : 33.7507 Longitude : -117.9814 ‹ previous : 651-999 next › : 657-201 Telephone Number List 657-200-0000 ~ 657-200-9999