248 Area Code — Troy, MI
Area code 248 serves Troy and 4 other cities in Michigan. Local time follows America/New_York. It overlays with 947, so 10-digit dialling is required.
- State
- Michigan
- Primary city
- Troy
- Timezone
- America/New_York
- In service since
- 1997
- Type
- Geographic
- Overlay codes
- 947
Cities Served by 248
The 248 area code covers 5 cities and communities in Michigan.
- Troy
- Pontiac
- Farmington Hills
- Royal Oak
- Southfield
About Area Code 248
Area code 248 is a North American Numbering Plan (NANP) area code that has been in service since 1997. It is administered by NANPA on behalf of the FCC and serves the Michigan region anchored on Troy.
248 now shares its territory with an overlay code (947). 10-digit dialling is required for local calls within this region because the same 7-digit number can be assigned under either code.
Mobile numbers in 248 are portable: a person who moved away from Troy may still carry a 248 mobile number on their device. If you receive an unexpected call from a 248 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in Michigan, you may also interact with neighbouring or overlay codes (947). See the related codes section below to explore the rest of Michigan.
Other Michigan Area Codes
Continue exploring the Michigan numbering plan.
248 Area Code FAQ
Where is area code 248?
Area code 248 is located in Michigan, primarily serving Troy and surrounding cities including Pontiac, Farmington Hills, Royal Oak. The region operates on ET (America/New_York) time.
What state is 248 area code?
248 is a Michigan area code. It was put into service in 1997 and shares its geographic footprint with overlay code 947.
Is 248 a scam area code?
248 is a legitimate North American area code allocated by NANPA to Michigan. Like any geographic area code, scammers sometimes spoof 248 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 248 use?
Area code 248 operates on ET (America/New_York). Numbers in this area code follow standard Michigan time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 248 phone number?
Yes. Use the reverse lookup widget above to enter a full 248 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.
What's the difference between 248 and 947?
248 and 947 cover the same Michigan geographic area as overlay codes. Calls between them are local, but you must dial all 10 digits. New phone numbers in this region are assigned from either pool depending on what's available with the carrier at signup.