Area Code 517-987 located in PORTLAND, IONIA, MI, more detail is as below. Place NPA (Numbering Plan Area) : 517 NXX (Local Number Prefix) : 987 City : PORTLAND County : IONIA State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1998-11-20 FIPS (Federal Information Processing Standards) : 26067 Rate Center : PORTLAND ZIP Code Count : 0 ZIP Code Frequency : Most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 48875 Other Information NPANXX : 517987 County Population : 0 Switch CLLI (Common Language Location Identifier) : LNNGMIDCCM0 MSA CBSA (Core Based Statistical Area) : Grand Rapids-Wyoming, MI MSA CBSA Code (Core Based Statistical Area) : 24340 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Latitude : None Longitude : None ‹ previous : 517-986 next › : 517-988 Telephone Number List 517-987-0000 ~ 517-987-9999