Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — AREA-CODE/947

947 area code

Area code 947 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 2002 as an overlay: it covers the same area as 248, so a number from there can have either code.

Time zone
Eastern
Largest city
Rochester
Overlays
248
In service since
2002
Rate centres
20
Prefixes assigned
211 (2,110,000 numbers)

Who calls from a 947 number

NANPA records the carrier each block of 947 numbers is assigned to. Of the 2.0 million 947 numbers assigned, 69% are with mobile carriers (Verizon Wireless, AT&T Mobility and T-Mobile); 31% with cable, internet-calling, business and other carriers (Onvoy, Teleport Communications (AT&T) and Bandwidth).

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 947 numbers
CarrierKindShare
Verizon WirelessMobile37%
AT&T MobilityMobile24%
OnvoyCable, VoIP, other17%
T-MobileMobile7%
Teleport Communications (AT&T)Cable, VoIP, other5%
BandwidthCable, VoIP, other3%

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 947

The 17 places with a telephone rate centre of their own using 947, largest first. Each links to its ZIP codes.

Places in area code 947
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 947

These places have no rate centre of their own in NANPA's records; the nearest one uses 947. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 947

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

Where 947 numbers are issued

NANPA's rate centres with the most 947 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 947
Rate centrePlacePrefixes
ORTONVILLE Ortonville 39
CLARKSTON Clarkston 33
FARMINGTON Farmington 19
SOUTHFIELD Southfield 19
BIRMINGHAM Birmingham 18
PONTIAC Pontiac 14

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 947

Where is area code 947?

Area code 947 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 947?

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 947 in?

Eastern time.

Is a 947 number a mobile or a landline?

It can be either. 69% of 947 numbers are assigned to mobile carriers and 0% 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 947?

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

Does a 947 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 947 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 947.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/947

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