Area code
906
906 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 906
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 906 at a glance
NANPA lists 358 central office codes (prefixes) in use in area code 906, held by 42 holders across 93 rate centers.
| Fact | Value |
|---|---|
| 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 in area code 906
| 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% |
Who holds the prefixes in 906
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.
| 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. Find which carrier a number is on, or browse the prefix holders.
History of area code 906
- 1961-03-19 Area code 906 went into service.
Area codes nearest to 906
Distance is measured between the centers of the ZIP code places each area code serves, so it is a rough guide.
- 274 about 150 mi
- 920 about 161 mi
- 231 about 162 mi
- 534 about 170 mi
- 715 about 177 mi
ZIP codes in area code 906
65 ZIP codes fall in places that have a rate center in this area code.
| Place | ZIP codes |
|---|---|
| Amasa, MI | 1 |
| Au Train, MI | 1 |
| Baraga, MI | 1 |
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 906 numbers
450 FCC complaints are on file for 344 numbers in 906, most often filed as "Unwanted Calls". These are unverified consumer reports.
| Year of latest complaint | Numbers |
|---|---|
| 2023 | 8 |
| 2024 | 27 |
| 2025 | 18 |
Other area codes in Michigan
Michigan is one state with 13 area codes in the NANPA table. 906 is one of them.
Next to 906 in the numbering table
These are the codes just before and after 906 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 906 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 906 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 906
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.
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.