Area Code 248-228 located in BIRMINGHAM, OAKLAND, MI, more detail is as below. Place NPA (Numbering Plan Area) : 248 NXX (Local Number Prefix) : 228 City : BIRMINGHAM County : OAKLAND State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1999-05-10 FIPS (Federal Information Processing Standards) : 26125 LATA (Local Access Transport Area) : 340 Rate Center : SOUTHFIELD ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 48009 Other Information NPANXX : 248228 County Population : 0 Switch CLLI (Common Language Location Identifier) : DTRTMIBADS0 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 : LOCAL EXCHANGE CARRIERS OF MICHIGAN, INC. - MI OCN (Operating Company Number) : 2550 Coverage Area Name : DETROIT Latitude : 42.3343 Longitude : -83.0563 ‹ previous : 248-227 next › : 248-229 Telephone Number List 248-228-0000 ~ 248-228-9999