Area Code 231-854 located in FREMONT, NEWAYGO, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 854 City : FREMONT County : NEWAYGO State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 26123 LATA (Local Access Transport Area) : 348 Rate Center : HESPERIA ZIP Code Count : 38 ZIP Code Frequency : 2 ZIP Code : 49412 Other Information NPANXX : 231854 County Population : 0 Switch CLLI (Common Language Location Identifier) : HSPRMIXHRS0 MSA CBSA (Core Based Statistical Area) : Grand Rapids-Wyoming, MI MSA CBSA Code (Core Based Statistical Area) : 24340 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : FRONTIER NORTH, INC. - MI OCN (Operating Company Number) : 0695 Coverage Area Name : HESPERIA Latitude : 43.5659 Longitude : -86.0404 ‹ previous : 231-854 next › : 231-854 Telephone Number List 231-854-0000 ~ 231-854-9999