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zipcodes.pro — AREA-CODE/248

248 area code

Area code 248 is in Michigan. It covers Troy, Rochester Hills, Southfield and 37 other places: 73 ZIP codes in Oakland and Wayne counties. Local time there is , Eastern Time. In service since 1997; 947 (2002) overlays it, so a number from there can have either code.

Time zone
Eastern
Largest city
Rochester
Overlays
947
In service since
1997
Rate centres
21
Prefixes assigned
784 (7,840,000 numbers)

Who calls from a 248 number

NANPA records the carrier each block of 248 numbers is assigned to. Of the 7.8 million 248 numbers assigned, 35% are with mobile carriers (T-Mobile, Verizon Wireless and AT&T Mobility); 31% with local phone companies (AT&T); 30% with cable, internet-calling, business and other carriers (Onvoy and Verizon Business); 4% with paging companies.

That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.

Carriers holding the most 248 numbers
CarrierKindShare
AT&TLandline30%
T-MobileMobile13%
Verizon WirelessMobile12%
AT&T MobilityMobile10%
OnvoyCable, VoIP, other5%
Verizon BusinessCable, VoIP, other4%

An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.

Places in area code 248

The 17 places with a telephone rate centre of their own using 248, largest first. Each links to its ZIP codes.

Places in area code 248
PlaceZIP codesPopulation
Troy, MI 6 87,898
Southfield, MI 6 76,236
West Bloomfield, MI 4 67,218
Pontiac, MI 4 62,104
Royal Oak, MI 3 57,950
Clarkston, MI 3 47,741
Commerce Township, MI 1 24,479
Birmingham, MI 2 21,763
Rochester, MI 4 12,934
South Lyon, MI 1 11,950
Farmington, MI 6 11,504
Walled Lake, MI 2 7,299
Northville, MI 2 6,069
Holly, MI 1 5,964
Oxford, MI 2 3,474
Lake Orion, MI 4 2,863
Ortonville, MI 1 1,341

Nearby places using 248

These places have no rate centre of their own in NANPA's records; the nearest one uses 248. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 248

73 ZIP codes in 31 towns, by the town each is mailed to, largest first. Each links to its own page.

Where 248 numbers are issued

NANPA's rate centres with the most 248 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 248
Rate centrePlacePrefixes
PONTIAC Pontiac 150
SOUTHFIELD Southfield 104
ROYAL OAK Royal Oak 84
BIRMINGHAM Birmingham 61
TROY Troy 61
NORTHVILLE Northville 54

Counties

The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.

Which code covers where you are now? What area code am I in? answers from your location.

Questions about area code 248

Where is area code 248?

Area code 248 is in Michigan. It covers Troy, Rochester Hills, Southfield and 37 other places: 73 ZIP codes in Oakland and Wayne counties.

What ZIP codes are in area code 248?

73 ZIP codes, by the town each is mailed to: Troy (6, 48007 to 48099), Southfield (6, 48033 to 48086), Waterford (3, 48327 to 48329), West Bloomfield (4, 48322 to 48325) and 27 more towns. The full list is on this page.

What time zone is area code 248 in?

Eastern time.

Is a 248 number a mobile or a landline?

It can be either. 35% of 248 numbers are assigned to mobile carriers and 31% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.

What area codes overlay 248?

947. They cover the same area as 248, so a new number there can be given any of them.

Does a 248 number mean the caller is in Michigan?

Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 248 call can come from anywhere.

Other area codes in Michigan

All 13 Michigan area codes, by area, with the cities each covers

Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Area code 248.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/248

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