Area Code 231-229 located in FIFE LAKE, KALKASKA, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 229 City : FIFE LAKE 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 : MOORESTOWN ZIP Code Count : 38 ZIP Code Frequency : 8 ZIP Code : 49633 Other Information NPANXX : 231229 County Population : 0 Switch CLLI (Common Language Location Identifier) : MSTWMIXIDS0 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 : CENTURYTEL OF MICHIGAN INC DBA CENTURYLINK OCN (Operating Company Number) : 0702 Coverage Area Name : MERRITT Latitude : 44.4664 Longitude : -85.0007 ‹ previous : 231-228 next › : 231-229 Telephone Number List 231-229-0000 ~ 231-229-9999