Area Code 231-833 located in WOLVERINE, CHEBOYGAN, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 833 City : WOLVERINE County : CHEBOYGAN State : MI (Michigan) NXX Use Type : Wireless NXX Intro Version : 2005-06-25 FIPS (Federal Information Processing Standards) : 26031 LATA (Local Access Transport Area) : 348 Rate Center : WOLVERINE ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 49799 Other Information NPANXX : 231833 County Population : 0 Switch CLLI (Common Language Location Identifier) : TRCYMICICM2 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : NEW CINGULAR WIRELESS PCS, LLC - IL OCN (Operating Company Number) : 6534 Coverage Area Name : WOLVERINE Latitude : 45.2784 Longitude : -84.6025 ‹ previous : 231-832 next › : 231-834 Telephone Number List 231-833-0000 ~ 231-833-9999