Area code
947
947 is a United States area code. Under the North American Numbering Plan it belongs to Michigan, which has 13 area codes in total.
Validate a number in 947
Paste a full number and the tool checks it against the numbering plan. It returns the standard formats, the line type the plan assigns and the area code region.
Digits with or without punctuation work. Numbers outside the US are read with the +country code.
Area code 947 at a glance
NANPA lists 209 central office codes (prefixes) in use in area code 947, held by 18 holders across 20 rate centers.
| Fact | Value |
|---|---|
| In service since | 2002-09-07 |
| Time zone | Eastern (E) |
| Assigned overlays | 248 (1997-05-10) |
| Prefixes in use | 209 |
| Pooled prefixes | 209 (100%) |
| Rate centers | 20 |
| Companies holding prefixes | 18 |
| Assignment dates on file | 2005-03-04 to 2026-02-25 (205 prefixes) |
| ZIP codes in its places | 47 |
Rate centers in area code 947
| Rate center | Prefixes | Share |
|---|---|---|
| ORTONVILLE | 39 | 19% |
| CLARKSTON | 33 | 16% |
| SOUTHFIELD | 19 | 9% |
| FARMINGTON | 18 | 9% |
| BIRMINGHAM | 17 | 8% |
| PONTIAC | 14 | 7% |
| ROYAL OAK | 11 | 5% |
| MILFDWH LK | 7 | 3% |
| 12 other rate centers | 51 | 24% |
Who holds the prefixes in 947
Verizon Wireless holds the most prefixes, 73 (35%). 100% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
| Holder | Prefixes | Share |
|---|---|---|
| Verizon Wireless | 73 | 35% |
| New Cingular Wireless PCS | 39 | 19% |
| Onvoy, Llcv | 23 | 11% |
| Omnipoint Communications Midwest Operations | 14 | 7% |
| Ton80 Communications | 12 | 6% |
| Metropcs | 11 | 5% |
| 12 other carriers | 37 | 18% |
A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company. Find which carrier a number is on, or browse the prefix holders.
History of area code 947
- 1997-05-10 Area code 248, named as the parent of 947 in the NANPA report, was in service.
- 2002-09-07 Area code 947 went into service.
Area codes nearest to 947
Distance is measured between the centers of the ZIP code places each area code serves, so it is a rough guide.
Overlay codes in the same area
ZIP codes in area code 947
47 ZIP codes fall in places that have a rate center in this area code.
| Place | ZIP codes |
|---|---|
| Farmington, MI | 6 |
| Southfield, MI | 6 |
| Troy, MI | 6 |
A ZIP code and an area code are unrelated systems. A ZIP code can sit in more than one area code, and an area code spans many ZIP codes.
Complaints on file for 947 numbers
305 FCC complaints are on file for 235 numbers in 947, most often filed as "Unwanted Calls". These are unverified consumer reports.
| Year of latest complaint | Numbers |
|---|---|
| 2023 | 14 |
| 2024 | 27 |
| 2025 | 16 |
Other area codes in Michigan
Michigan is one state with 13 area codes in the NANPA table. 947 is one of them.
Next to 947 in the numbering table
These are the codes just before and after 947 when all are sorted by number. They are neighbours on the list, not necessarily on the map.
What the area code does and does not tell you
A number that starts with 947 was first assigned in Michigan. That is a fact about where the number began, and it is a useful hint when you check a form entry, for example a billing address in Michigan next to a 947 phone number.
It does not show where the person is today. A number stays with its owner after a move or a change of provider (number portability), and mobile numbers travel with the handset. The area code also cannot tell you whether the line is active, who the carrier is, or whether the number is mobile or fixed: the plan shares those ranges. Read more about the area code, the numbering plan and line type.
Check numbers in bulk with the API
| Product | Credits | Docs |
|---|---|---|
| Phone Numbering-Plan Validation | 1 credit per valid number | API docs |
| Phone Intelligence (carrier and line status) | 1 credit per check (invalid numbers outside the US and Canada are free) | Product page |
Questions about area code 947
Where is area code 947?
NANPA assigns area code 947 to Michigan, United States.
In which state does area code 947 sit?
Michigan. 947 is one of 13 area codes the NANPA table assigns to the state.
Which places does area code 947 cover?
The places with the most ZIP codes among the rate centers in 947 are Farmington, MI, Southfield, MI and Troy, MI. The rate center list on this page shows all of them.
Who owns area code 947?
NANPA assigns area codes. Within 947, Verizon Wireless holds the most prefixes, 73 prefixes or 35%.
Which time zone does 947 use?
The NANPA NPA report lists the time zone for 947 as Eastern (E).
What year did 947 enter service?
The NANPA NPA report gives an in-service date of 2002-09-07, so 947 has been in use since 2002.
Does area code 947 have an overlay?
Yes. 248 (in service 1997-05-10) shares the same area with 947, so numbers from all of them are local to each other.
Which area codes are nearest to 947?
The area codes closest to 947, measured between the centers of the ZIP code places they serve, are 586 (about 16 miles), 810 (about 23 miles), 734 (about 32 miles), 517 (about 64 miles) and 989 (about 92 miles).
How many prefixes does area code 947 have?
NANPA's report dated 2026-10-17 lists 209 prefixes in service in 947, spread over 20 rate centers and 18 holders.
Are there complaints about 947 numbers?
The FCC data on file has 305 complaints for 235 numbers in 947. They are unverified consumer reports. A number with no complaints on file is not proven safe.
Area code assignments: North American Numbering Plan Administrator NPA report, file dated 10/17/2026, retrieved 2026-10-17. Source file. New codes are assigned several times a year. Prefixes, rate centers, holders, time zone, in-service date and overlays: NANPA central office code report dated 2026-10-17 and NPA report dated 2026-10-18. Complaints: FCC consumer complaints open data, fetched 2026-10-17. ZIP code places: Postal code places and coordinates: GeoNames (geonames.org), licensed CC BY 4.0.