---
title: "Area code 906: Michigan, United States"
url: "https://lookvalid.com/area-code/906.md"
canonical_url: "https://lookvalid.com/area-code/906"
last_updated: "2026-10-23"
type: "reference"
summary: "Area code 906 serves Michigan, United States. Number formats, numbering rules, a live phone validator and the other codes in Michigan."
---

# Area code 906: Michigan, United States

Area code 906 serves Michigan, United States. Number formats, numbering rules, a live phone validator and the other codes in Michigan.

NANPA lists 358 central office codes (prefixes) in use in area code 906, held by 42 holders across 93 rate centers.
Michigan Bell Tel holds the most prefixes, 67 (19%). 60% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
The FCC unwanted-call data has 450 complaints on file for 344 numbers in 906, most often filed as "Unwanted Calls". These are consumer reports, not findings.

## Facts

- In service since: 1961-03-19
- Time zone: EC
- Prefixes in use: 358
- Pooled prefixes: 216 (60%)
- Rate centers: 93
- Companies holding prefixes: 42
- Assignment dates on file: 2001-04-19 to 2026-03-09 (148 prefixes)
- ZIP codes in its places: 65

## Rate centers

| Rate center | Prefixes | Share |
| --- | --- | --- |
| MARQUETTE | 38 | 11% |
| IRON MT | 15 | 4% |
| ESCANABA | 13 | 4% |
| HOUGHTON | 13 | 4% |
| SALTSTMARI | 12 | 3% |
| MENOMINEE | 10 | 3% |
| IRONWOOD | 7 | 2% |
| IRON RIVER | 6 | 2% |
| 85 other rate centers | 244 | 68% |

## Carriers

| Holder | Prefixes | Share |
| --- | --- | --- |
| Michigan Bell Tel | 67 | 19% |
| Peninsula Fiber Network | 42 | 12% |
| New Cingular Wireless PCS | 31 | 9% |
| Range Telecommunications | 30 | 8% |
| Interactive Services Network | 28 | 8% |
| Verizon Wireless | 28 | 8% |
| 36 other carriers | 132 | 37% |

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

- 1961-03-19: Area code 906 went into service.

## Nearest area codes

The area codes closest to 906, measured between the centers of the ZIP code places they serve, are 274 (about 150 miles), 920 (about 161 miles), 231 (about 162 miles), 534 (about 170 miles) and 715 (about 177 miles).

## ZIP codes

65 ZIP codes fall in places that have a rate center in this area code. The places with the most are Amasa, MI (1 ZIP code), Au Train, MI (1 ZIP code) and Baraga, MI (1 ZIP code). 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

450 complaints for 344 numbers. Numbers whose latest complaint falls in each year:

- 2023: 8
- 2024: 27
- 2025: 18

## Questions

### Where is area code 906?

NANPA assigns area code 906 to Michigan, United States.

### In which state does area code 906 sit?

Michigan. 906 is one of 13 area codes the NANPA table assigns to the state.

### Which places does area code 906 cover?

The places with the most ZIP codes among the rate centers in 906 are Amasa, MI, Au Train, MI and Baraga, MI. The rate center list on this page shows all of them.

### Who owns area code 906?

NANPA assigns area codes. Within 906, Michigan Bell Tel holds the most prefixes, 67 prefixes or 19%.

### Which time zone does 906 use?

The NANPA NPA report lists the time zone for 906 as EC.

### What year did 906 enter service?

The NANPA NPA report gives an in-service date of 1961-03-19, so 906 has been in use since 1961.

### Does area code 906 have an overlay?

The NANPA NPA report lists no other area code in an overlay with 906.

### Which area codes are nearest to 906?

The area codes closest to 906, measured between the centers of the ZIP code places they serve, are 274 (about 150 miles), 920 (about 161 miles), 231 (about 162 miles), 534 (about 170 miles) and 715 (about 177 miles).

### How many prefixes does area code 906 have?

NANPA's report dated 2026-10-17 lists 358 prefixes in service in 906, spread over 93 rate centers and 42 holders.

### Are there complaints about 906 numbers?

The FCC data on file has 450 complaints for 344 numbers in 906. 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).