Area Code 248-390 located in TROY, OAKLAND, MI, more detail is as below. Place NPA (Numbering Plan Area) : 248 NXX (Local Number Prefix) : 390 City : TROY County : OAKLAND State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1997-07-06 FIPS (Federal Information Processing Standards) : 26125 LATA (Local Access Transport Area) : 340 Rate Center : PONTIAC ZIP Code Count : 1 ZIP Code Frequency : 14 ZIP Code : 48083 Other Information NPANXX : 248390 County Population : 0 Switch CLLI (Common Language Location Identifier) : DTRTMIPMCM0 MSA CBSA (Core Based Statistical Area) : Detroit-Warren-Livonia, MI MSA CBSA Code (Core Based Statistical Area) : 19820 Time Zone : Eastern (GMT -05:00) Observes Daylight Saving Time : Yes Company : SPRINT SPECTRUM L.P. OCN (Operating Company Number) : 6664 Coverage Area Name : PONTIAC Latitude : 42.6402 Longitude : -83.2845 ‹ previous : 248-390 next › : 248-390 Telephone Number List 248-390-0000 ~ 248-390-9999