248 and 947 Area Codes
248 and 947 are the area codes for Oakland County, Michigan a county that borders the city of Detroit to the north. The area code also encompasses part of northern Wayne County, Michigan. The 248 area code was split off from the 810 area code in 1997. More recently, area code 947 has been overlaid on its area.
| Auburn Hills, MI | Berkley, MI | Birmingham, MI |
| Bloomfield Hills, MI | Clarkston, MI | Clawson, MI |
| Commerce Township, MI | Davisburg, MI | Drayton Plains, MI |
| Farmington, MI | Ferndale, MI | Franklin, MI |
| Hazel Park, MI | Highland, MI | Holly, MI |
| Huntington Woods, MI | Keego Harbor, MI | Lake Orion, MI |
| Lakeville, MI | Leonard, MI | Madison Heights, MI |
| Milford, MI | New Hudson, MI | Northville, MI |
| Novi, MI | Oak Park, MI | Oakland, MI |
| Ortonville, MI | Oxford, MI | Pleasant Ridge, MI |
| Pontiac, MI | Rochester, MI | Royal Oak, MI |
| South Lyon, MI | Southfield, MI | Troy, MI |
| Union Lake, MI | Walled Lake, MI | Waterford, MI |
| West Bloomfield, MI | White Lake, MI | Wixom, MI |