---
title: "Area code 947: Michigan, United States"
url: "https://lookvalid.com/area-code/947.md"
canonical_url: "https://lookvalid.com/area-code/947"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 947 serves Michigan, United States. Number formats, numbering rules, a live phone validator and the other codes in Michigan."
---

# Area code 947: Michigan, United States

Area code 947 serves Michigan, United States. Number formats, numbering rules, a live phone validator and the other codes in Michigan.

NANPA lists 209 central office codes (prefixes) in use in area code 947, held by 18 holders across 20 rate centers.
Verizon Wireless holds the most prefixes, 73 (35%). 100% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 305 complaints on file for 235 numbers in 947, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- 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

| 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% |

## Carriers

| 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.

## History

- 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.

## Nearest area codes

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).

## ZIP codes

47 ZIP codes fall in places that have a rate center in this area code. The places with the most are Farmington, MI (6 ZIP codes), Southfield, MI (6 ZIP codes) and Troy, MI (6 ZIP codes). A ZIP code and an area code are unrelated systems, so a ZIP code can sit in more than one area code and an area code spans many ZIP codes.

## Complaints on file

305 complaints for 235 numbers. Numbers whose latest complaint falls in each year:

- 2023: 14
- 2024: 27
- 2025: 16

## Questions

### 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.

Sources: NANPA central office code report dated 2026-10-17; NANPA NPA report dated 2026-10-18; FCC unwanted-call complaints, data fetched 2026-10-17; ZIP code places from GeoNames (CC BY 4.0).