Area Code 209-231 located in JACKSON, AMADOR, CA, more detail is as below. Place NPA (Numbering Plan Area) : 209 NXX (Local Number Prefix) : 231 City : JACKSON County : AMADOR State : CA (California) NXX Use Type : Landline NXX Intro Version : 1996-07-01 FIPS (Federal Information Processing Standards) : 06005 LATA (Local Access Transport Area) : 738 Rate Center : JACKSON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 95642 Other Information NPANXX : 209231 County Population : 0 Switch CLLI (Common Language Location Identifier) : SKTNCACZDS0 Time Zone : Pacific (GMT -08:00) Observes Daylight Saving Time : Yes Company : PAC - WEST TELECOMM, INC. OCN (Operating Company Number) : 7379 Coverage Area Name : JACKSON Latitude : 38.3489 Longitude : -120.7750 ‹ previous : 209-230 next › : 209-232 Telephone Number List 209-231-0000 ~ 209-231-9999