Area code
586
586 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 586
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 586 at a glance
NANPA lists 546 central office codes (prefixes) in use in area code 586, held by 30 holders across 11 rate centers.
| Fact | Value |
|---|---|
| In service since | 2001-09-22 |
| Time zone | Eastern (E) |
| Prefixes in use | 546 |
| Pooled prefixes | 387 (71%) |
| Rate centers | 11 |
| Companies holding prefixes | 30 |
| Assignment dates on file | 2001-02-15 to 2026-07-01 (226 prefixes) |
| ZIP codes in its places | 22 |
Rate centers in area code 586
| Rate center | Prefixes | Share |
|---|---|---|
| MT CLEMENS | 190 | 35% |
| WARREN | 132 | 24% |
| ROSEVILLE | 73 | 13% |
| CENTERLINE | 43 | 8% |
| UTICA | 32 | 6% |
| ROMEO | 21 | 4% |
| WASHINGTON | 13 | 2% |
| ARMADA | 12 | 2% |
| 3 other rate centers | 30 | 5% |
Who holds the prefixes in 586
Verizon Wireless holds the most prefixes, 132 (24%). 71% of the prefixes are pooled, which means their thousands-blocks can belong to different companies.
| Holder | Prefixes | Share |
|---|---|---|
| Verizon Wireless | 132 | 24% |
| Michigan Bell Tel | 100 | 18% |
| New Cingular Wireless PCS | 60 | 11% |
| Omnipoint Communications Midwest Operations | 43 | 8% |
| American Messaging Services | 27 | 5% |
| Level 3 Communications | 26 | 5% |
| 24 other carriers | 158 | 29% |
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 586
- 1993-12-01 Area code 810, named as the parent of 586 in the NANPA report, was in service.
- 2001-09-22 Area code 586 went into service.
Area codes nearest to 586
Distance is measured between the centers of the ZIP code places each area code serves, so it is a rough guide.
ZIP codes in area code 586
22 ZIP codes fall in places that have a rate center in this area code.
| Place | ZIP codes |
|---|---|
| Warren, MI | 7 |
| Utica, MI | 4 |
| Mount Clemens, MI | 2 |
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 586 numbers
1,634 FCC complaints are on file for 1,087 numbers in 586, most often filed as "Unwanted Calls". These are unverified consumer reports.
| Year of latest complaint | Numbers |
|---|---|
| 2023 | 68 |
| 2024 | 64 |
| 2025 | 48 |
Other area codes in Michigan
Michigan is one state with 13 area codes in the NANPA table. 586 is one of them.
Next to 586 in the numbering table
These are the codes just before and after 586 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 586 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 586 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 586
Where is area code 586?
NANPA assigns area code 586 to Michigan, United States.
In which state does area code 586 sit?
Michigan. 586 is one of 13 area codes the NANPA table assigns to the state.
Which places does area code 586 cover?
The places with the most ZIP codes among the rate centers in 586 are Warren, MI, Utica, MI and Mount Clemens, MI. The rate center list on this page shows all of them.
Who owns area code 586?
NANPA assigns area codes. Within 586, Verizon Wireless holds the most prefixes, 132 prefixes or 24%.
Which time zone does 586 use?
The NANPA NPA report lists the time zone for 586 as Eastern (E).
What year did 586 enter service?
The NANPA NPA report gives an in-service date of 2001-09-22, so 586 has been in use since 2001.
Does area code 586 have an overlay?
The NANPA NPA report lists no other area code in an overlay with 586.
Which area codes are nearest to 586?
The area codes closest to 586, measured between the centers of the ZIP code places they serve, are 248 (about 16 miles), 947 (about 16 miles), 810 (about 28 miles), 734 (about 44 miles) and 517 (about 80 miles).
How many prefixes does area code 586 have?
NANPA's report dated 2026-10-17 lists 546 prefixes in service in 586, spread over 11 rate centers and 30 holders.
Are there complaints about 586 numbers?
The FCC data on file has 1,634 complaints for 1,087 numbers in 586. 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.