Area Code 559-203 located in CLOVIS, FRESNO, CA, more detail is as below. Place NPA (Numbering Plan Area) : 559 NXX (Local Number Prefix) : 203 City : CLOVIS County : FRESNO State : CA (California) NXX Use Type : Wireless NXX Intro Version : 12/13/2010 FIPS (Federal Information Processing Standards) : 06019 LATA (Local Access Transport Area) : 728 Rate Center : CLOVIS ZIP Code Count : 0 ZIP Code Frequency : 0 ZIP Code : 93611 Other Information NPANXX : 559203 County Population : 0 MSA CBSA (Core Based Statistical Area) : Fresno, CA MSA CBSA Code (Core Based Statistical Area) : 23420 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : T-MOBILE USA, INC. OCN (Operating Company Number) : 6529 Coverage Area Name : CLOVIS Latitude : 36.8236 Longitude : -119.7017 ‹ previous : 559-202 next › : 559-204 Telephone Number List 559-203-0000 ~ 559-203-9999