Area Code 248-239 located in OXFORD, OAKLAND, MI, more detail is as below. Place NPA (Numbering Plan Area) : 248 NXX (Local Number Prefix) : 239 City : OXFORD County : OAKLAND State : MI (Michigan) NXX Use Type : Landline NXX Intro Version : 2000-06-13 FIPS (Federal Information Processing Standards) : 26125 LATA (Local Access Transport Area) : 340 Rate Center : PONTIAC ZIP Code Count : 1 ZIP Code Frequency : 100 ZIP Code : 48371 Other Information NPANXX : 248239 County Population : 0 Switch CLLI (Common Language Location Identifier) : SFLDMIDODS0 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 : ALLEGIANCE TELECOM OF MICHIGAN, INC. OCN (Operating Company Number) : 4347 Coverage Area Name : DETROIT Latitude : 42.4486 Longitude : -83.2524 ‹ previous : 248-238 next › : 248-240 Telephone Number List 248-239-0000 ~ 248-239-9999