586 Area Code — Michigan
586 is a North American Numbering Plan area code for Michigan, the United States. It covers about 552,470 people in 15 towns and 29 ZIP codes, including Warren, Macomb and Utica.
| Field | Value |
|---|---|
| Area code | 586 |
| Country | United States (+1) |
| State / province | Michigan |
| Type | Standalone (no other NANP code covers the same towns) |
| Time zone | Eastern |
| Population covered | 552,470 |
| Towns covered | 15 |
| ZIP codes | 29 |
| Approx. centre | 42.636, -82.952 |
Where area code 586 is used
Area code 586 is assigned to Michigan, the United States, inside the North American Numbering Plan. Numbers in the code are written (586) NXX-XXXX at home and +1 586 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Towns and cities in area code 586
The 15 towns below are the largest in the 586 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Warren | Macomb County | 137,928 | 7 |
| Macomb | Macomb County | 92,629 | 2 |
| Utica | Macomb County | 84,821 | 4 |
| New Baltimore | Macomb County | 58,224 | 2 |
| Roseville | Macomb County | 47,123 | 1 |
| Washington | Macomb County | 26,437 | 2 |
| Harrison Township | Macomb County | 24,061 | 1 |
| Mount Clemens | Macomb County | 15,429 | 2 |
| Fraser | Macomb County | 14,583 | 1 |
| New Haven | Macomb County | 12,687 | 2 |
| Romeo | Macomb County | 11,597 | 1 |
| Richmond | Macomb County | 9,385 | 1 |
Counties covered
| County | ZIP codes |
|---|---|
| Macomb County | 29 |
Nearby area codes
How to dial area code 586
- Within North America: 586 + 7-digit number (586-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 586, then the 7-digit number — for example 00 1 586 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 586?
586 is a North American Numbering Plan area code assigned to Michigan, the United States. It covers about 552,470 people in 15 towns.
Is 586 a US or Canadian area code?
586 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 586 in?
Area code 586 is in the Eastern time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.