Michigan
(248) Area Code 248 — Troy, Michigan
248 Area Code – Troy, Michigan: Location, Time Zone & History
Build trust, look local, and grow your business with a phone number in area code 248. Instant activation, flexible forwarding, and clear pricing.
Map of Area Code 248
Available Phone Numbers
Choose from popular and easy-to-remember local numbers. Instant purchase and activation.
History & Cultural Notes
Oakland County, Michigan, gained its own dialing code in 1997, when the numbering plan was split off from area code 810 (itself a 1993 offshoot of 313). Permissive dialing under the new code began on May 10, 1997, with mandatory use following later that year. As demand for numbers grew, the region added the 947 overlay in 2002, layering a second all-services code onto the same geography rather than requiring another split.
The territory served by 248, anchored by Troy, extends to Southfield, Pontiac, Auburn Hills, Novi, and Farmington Hills, and covers one of the wealthier counties in Michigan. Its economy is closely tied to the automotive industry, with numerous supplier headquarters and engineering operations based in the area, alongside a growing presence of technology firms and corporate offices.
- Automotive engineering and manufacturing
- Information technology
- Finance and insurance
- Healthcare
- Professional and corporate services
This mix of established automotive supply-chain business and newer professional and tech-sector employers has made Oakland County a durable economic hub within the Detroit metropolitan area, with 248 (and its 947 overlay) serving as the shared dialing identity for that activity.