Area Code 231-264 located in KEWADIN, ANTRIM, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 264 City : KEWADIN County : ANTRIM State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 26009 LATA (Local Access Transport Area) : 348 Rate Center : ELK RAPIDS ZIP Code Count : 845 ZIP Code Frequency : 28 ZIP Code : 49648 Other Information NPANXX : 231264 County Population : 0 Switch CLLI (Common Language Location Identifier) : ELKRMIMNDS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : AMERITECH MICHIGAN OCN (Operating Company Number) : 9323 Coverage Area Name : ELK RAPIDS Latitude : 44.8970 Longitude : -85.4150 ‹ previous : 231-263 next › : 231-264 Telephone Number List 231-264-0000 ~ 231-264-9999