Area Code 812-359 located in RICHLAND, SPENCER, IN, more detail is as below. Place NPA (Numbering Plan Area) : 812 NXX (Local Number Prefix) : 359 City : RICHLAND County : SPENCER State : IN (Indiana) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 18147 LATA (Local Access Transport Area) : 330 Rate Center : SANDRIDGE ZIP Code Count : 614 ZIP Code Frequency : 65 ZIP Code : 47634 Other Information NPANXX : 812359 Switch CLLI (Common Language Location Identifier) : SNRGIN01RSK Time Zone : Central (GMT -06:00) Observes Daylight Saving Time : Yes Company : AMERITECH INDIANA OCN (Operating Company Number) : 9325 Coverage Area Name : RICHLAND Latitude : 37.9008 Longitude : -87.1683 ‹ previous : 812-359 next › : 812-360 Telephone Number List 812-359-0000 ~ 812-359-9999