Area code 810
Area code 810 is a telephone area code serving southeastern Michigan, specifically all of Genesee County and Lapeer County, and parts of Oakland County, Macomb County, St. Clair County, Sanilac County and Livingston County.
- Grand Blanc
- Imlay City
- Marine City
- Mount Morris
- Port Huron
- St. Clair
- Swartz Creek
- selected areas in north Oakland County areas of Oxford, Addison, Brandon, Groveland, and Holly are also partially served by 810.
Area code 810 was implemented on December 1, 1993, and was Michigan's first new area code since 1961. It originally served all communities north of Wayne County that were part of area code 313, including the northern suburbs of Detroit.
Only four years later, Oakland County was split off as area code 248. This led to a situation in which residents of southwest Macomb County could leave their area code area by traveling one or two miles westwards, but reenter it by continuing west for another 30 miles.
In 2001, when area code 586, including most of Macomb County, was split off from 810, only the northern communities of Macomb and Oakland counties remained served by 810.
Prior TWX assignment
The 810 area code was one of three US regional area codes for the former AT&T TWX (TeletypeWriter eXchange) network, sold to Western Union in 1969 and renamed as Telex II. It covered Michigan, Ohio, Indiana and the US South (NC SC GA FL LA MS FL AL KY).
The original TWX area codes were 510 in the US and 610 in Canada. The addition of 710 in the Northeast (New England, NY, NJ, PA, MD, DC, VA and WV), 810 from Michigan southward and 910 west of the Mississippi allowed each major city one or more local exchange prefixes in the special area code.
The special US TWX area codes (510, 710, 810, 910) were decommissioned in 1981; Canada moved its remaining 1-610 numbers to area code 600 in 1992.
In popular culture
Jimmy "B-Rabbit" Smith (Eminem) refers to area code 810 while free-styling as he fixes his car in the movie 8 Mile to insult "posers" who live in upperclass southern Macomb County suburbs (which were part of the area code in 1995 when the movie was set) instead of the lower income area code 313, which serves Detroit and Wayne County.
- Traffic Routing Guide, sec. 15-16, AT&T, 1975
|Michigan area codes: 231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 947, 989|
|West: 517, 989||area code 810||East: 519/226, Lake Huron|
|South: 734, 248/947, 586|
|Ontario area codes: 226, 249, 289, 343, 365, 416, 519, 613, 647, 705, 807, 905|