Area Code 248-230 located in SOUTHFIELD, OAKLAND, MI, more detail is as below. Place NPA (Numbering Plan Area) : 248 NXX (Local Number Prefix) : 230 City : SOUTHFIELD County : OAKLAND State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 1998-11-20 FIPS (Federal Information Processing Standards) : 26125 LATA (Local Access Transport Area) : 340 Rate Center : PONTIAC ZIP Code Count : 0 ZIP Code Frequency : Second most frequently occurring ZIP Code, although percentage is unknown. ZIP Code : 48034 Other Information NPANXX : 248230 County Population : 0 Switch CLLI (Common Language Location Identifier) : SFLDMIDNDS0 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 : LEVEL 3 COMMUNICATIONS, LLC - MI OCN (Operating Company Number) : 6120 Coverage Area Name : SOUTHFIELD Latitude : 42.4747 Longitude : -83.2384 ‹ previous : 248-229 next › : 248-230 Telephone Number List 248-230-0000 ~ 248-230-9999