Area Code 231-591 located in LANSE, BARAGA, MI, more detail is as below. Place NPA (Numbering Plan Area) : 231 NXX (Local Number Prefix) : 591 City : LANSE County : BARAGA State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1999-07-22 FIPS (Federal Information Processing Standards) : 26013 LATA (Local Access Transport Area) : 348 Rate Center : BIG RAPIDS ZIP Code Count : 2 ZIP Code Frequency : 15 ZIP Code : 49946 Other Information NPANXX : 231591 County Population : 0 Switch CLLI (Common Language Location Identifier) : BGRPMIMNDS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : AMERITECH MICHIGAN OCN (Operating Company Number) : 9323 Coverage Area Name : BIG RAPIDS Latitude : 43.6993 Longitude : -85.4864 ‹ previous : 231-590 next › : 231-591 Telephone Number List 231-591-0000 ~ 231-591-9999