Area Code 231-322 located in RAPID CITY, KALKASKA, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 322 City : RAPID CITY County : KALKASKA State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 26079 LATA (Local Access Transport Area) : 348 Rate Center : TRCHRIVBDG ZIP Code Count : 1017 ZIP Code Frequency : 100 ZIP Code : 49676 Other Information NPANXX : 231322 County Population : 0 Switch CLLI (Common Language Location Identifier) : TRRVMIXGRS0 MSA CBSA (Core Based Statistical Area) : Traverse City, MI MSA CBSA Code (Core Based Statistical Area) : 45900 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : FRONTIER NORTH, INC. - MI OCN (Operating Company Number) : 0695 Coverage Area Name : RAPID CITY Latitude : 44.8503 Longitude : -85.3264 ‹ previous : 231-320 next › : 231-323 Telephone Number List 231-322-0000 ~ 231-322-9999