Area Code 231-894 located in ROTHBURY, OCEANA, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 894 City : ROTHBURY County : OCEANA State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 26127 LATA (Local Access Transport Area) : 348 Rate Center : WHITEHALL ZIP Code Count : 131 ZIP Code Frequency : 4 ZIP Code : 49452 Other Information NPANXX : 231894 County Population : 0 Switch CLLI (Common Language Location Identifier) : WHTHMIXGDS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : FRONTIER NORTH, INC. - MI OCN (Operating Company Number) : 0695 Coverage Area Name : WHITEHALL Latitude : 43.4106 Longitude : -86.3478 ‹ previous : 231-894 next › : 231-894 Telephone Number List 231-894-0000 ~ 231-894-9999