Area Code 517-524 located in JONESVILLE, HILLSDALE, MI, more detail is as below. Place NPA (Numbering Plan Area) : 517 NXX (Local Number Prefix) : 524 City : JONESVILLE County : HILLSDALE State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 26059 LATA (Local Access Transport Area) : 346 Rate Center : CONCORD ZIP Code Count : 47 ZIP Code Frequency : 3 ZIP Code : 49250 Other Information NPANXX : 517524 County Population : 0 Switch CLLI (Common Language Location Identifier) : CNCRMIXJDS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : FRONTIER COMMUNICATIONS OF MICHIGAN, INC. OCN (Operating Company Number) : 4417 Coverage Area Name : CONCORD Latitude : 42.1801 Longitude : -84.6448 ‹ previous : 517-524 next › : 517-524 Telephone Number List 517-524-0000 ~ 517-524-9999