Area Code 812-493 located in MADISON, JEFFERSON, IN, more detail is as below. Place NPA (Numbering Plan Area) : 812 NXX (Local Number Prefix) : 493 City : MADISON County : JEFFERSON State : IN (Indiana) NXX Use Type : Landline NXX Intro Version : 2003-05-09 FIPS (Federal Information Processing Standards) : 18077 LATA (Local Access Transport Area) : 338 Rate Center : MADISON ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 47250 Other Information NPANXX : 812493 Switch CLLI (Common Language Location Identifier) : SALMINASDS0 MSA CBSA (Core Based Statistical Area) : Madison, IN MSA CBSA Code (Core Based Statistical Area) : 31500 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : BLUERIVER COMMUNICATIONS, INC. - IN OCN (Operating Company Number) : 8943 Coverage Area Name : MADISON Latitude : 38.7443 Longitude : -85.3846 ‹ previous : 812-492 next › : 812-494 Telephone Number List 812-493-0000 ~ 812-493-9999