Area codes 248 and 947 are area codes in the North American Numbering Plan (NANP) for Oakland County in the U.S. state of Michigan. The area codes also serve portions of Livonia and Northville, both located in Wayne County. The rest of Wayne County, including Detroit, located to the southeast, is serviced by area codes 313 and 734.
Area code 248 was created in 1997 in a split of area code 810. In 2000, area code 947 was assigned as an overlay area code for the area in relief of central office code exhaustion. In 2001, it was approved as an all-services overlay plan in the 248 numbering plan area, requiring ten-digit dialing after end of the permissive dialing period, which started on January 26, 2002.
Service area The area codes serve the following major communities:
Addison Township (shared with 586 and 810) Auburn Hills Berkley Birmingham Bloomfield Hills Bloomfield Township Brighton Clarkston Clawson Commerce Township Farmington Hills, Michigan Ferndale, Michigan Hazel Park, Michigan Holly, Michigan (part by 810) Huntington Woods, Michigan Lake Orion, Michigan area Leonard, Michigan (part by 810) Livonia, Michigan (most by 734, with a very small part by 248) Madison Heights, Michigan Milford, Michigan Northville, Michigan (part) Novi, Michigan Oakland Township, Michigan Oak Park, Michigan Ortonville, Michigan (part by 810) Oxford, Michigan (part by 810) Pontiac, Michigan Rochester, Michigan Rochester Hills, Michigan Royal Oak, Michigan Shelby Charter Township, Michigan (most by 586, with a very small part by 248) Southfield, Michigan South Lyon, Michigan Troy, Michigan Walled Lake, Michigan Waterford Township, Michigan area West Bloomfield Township, Michigan White Lake Township, Michigan area Wixom, Michigan
References
External links Map of Michigan area codes at North American Numbering Plan Administration's website