Area Code 906-439 located in TRENARY, ALGER, MI, more detail is as below. Place NPA (Numbering Plan Area) : 906 NXX (Local Number Prefix) : 439 City : TRENARY County : ALGER State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1994-02-04 FIPS (Federal Information Processing Standards) : 26003 LATA (Local Access Transport Area) : 342 Rate Center : CHATHAM ZIP Code Count : 23 ZIP Code Frequency : 3 ZIP Code : 49891 Other Information NPANXX : 906439 Switch CLLI (Common Language Location Identifier) : CHHMMIXIDS0 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : CHATHAM TELEPHONE CO. OCN (Operating Company Number) : 0685 Coverage Area Name : CHATHAM Latitude : 46.3471 Longitude : -86.9331 ‹ previous : 906-439 next › : 906-439 Telephone Number List 906-439-0000 ~ 906-439-9999