Area Code 248-258 located in FRANKLIN, OAKLAND, MI, more detail is as below. Place NPA (Numbering Plan Area) : 248 NXX (Local Number Prefix) : 258 City : FRANKLIN 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 : BIRMINGHAM ZIP Code Count : 321 ZIP Code Frequency : 22 ZIP Code : 48025 Other Information NPANXX : 248258 County Population : 0 Switch CLLI (Common Language Location Identifier) : BRHMMIMNCG0 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 : AMERITECH MICHIGAN OCN (Operating Company Number) : 9323 Coverage Area Name : BIRMINGHAM Latitude : 42.5417 Longitude : -83.2200 ‹ previous : 248-257 next › : 248-258 Telephone Number List 248-258-0000 ~ 248-258-9999