Area Code 231-358 located in CENTRAL LAKE, ANTRIM, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 358 City : CENTRAL LAKE County : ANTRIM State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 2001-03-03 FIPS (Federal Information Processing Standards) : 26009 LATA (Local Access Transport Area) : 348 Rate Center : CENTRAL LK ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 49622 Other Information NPANXX : 231358 County Population : 0 Switch CLLI (Common Language Location Identifier) : GDRQMIFOCA0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : TELNET WORLDWIDE, INC. OCN (Operating Company Number) : 4632 Coverage Area Name : CENTRAL LAKE Latitude : 45.0668 Longitude : -85.2702 ‹ previous : 231-357 next › : 231-359 Telephone Number List 231-358-0000 ~ 231-358-9999