Area Code 517-542 located in JONESVILLE, HILLSDALE, MI, more detail is as below. Place NPA (Numbering Plan Area) : 517 NXX (Local Number Prefix) : 542 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 : LITCHFIELD ZIP Code Count : 47 ZIP Code Frequency : 4 ZIP Code : 49250 Other Information NPANXX : 517542 County Population : 0 Switch CLLI (Common Language Location Identifier) : LTFDMIXJDS1 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CENTURYTEL MIDWEST-MIDWEST INC DBA CENTURYLINK OCN (Operating Company Number) : 0671 Coverage Area Name : LITCHFIELD Latitude : 41.9998 Longitude : -84.7705 ‹ previous : 517-542 next › : 517-542 Telephone Number List 517-542-0000 ~ 517-542-9999