Area Code 517-531 located in PARMA, JACKSON, MI, more detail is as below. Place NPA (Numbering Plan Area) : 517 NXX (Local Number Prefix) : 531 City : PARMA County : JACKSON State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 26075 LATA (Local Access Transport Area) : 346 Rate Center : PARMA ZIP Code Count : 1472 ZIP Code Frequency : 92 ZIP Code : 49269 Other Information NPANXX : 517531 County Population : 0 Switch CLLI (Common Language Location Identifier) : PARMMIXJDS0 MSA CBSA (Core Based Statistical Area) : Jackson, MI MSA CBSA Code (Core Based Statistical Area) : 27100 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : FRONTIER MIDSTATES, INC. - MI OCN (Operating Company Number) : 0681 Coverage Area Name : PARMA Latitude : 42.2605 Longitude : -84.5964 ‹ previous : 517-531 next › : 517-533 Telephone Number List 517-531-0000 ~ 517-531-9999