Area Code 586: Warren, Michigan
586 is a telephone area code serving Michigan, including Warren, Sterling Heights. It is part of the North American Numbering Plan and is dialed with the country code +1.
Numbers beginning with 586 are located in Michigan, United States (NANP region: Macomb). The code covers Warren, Sterling Heights.
How to Dial Area Code 586
| Calling from | What to dial |
|---|---|
| Anywhere in the US or Canada | 1 586 XXX-XXXX (10-digit dialing: 586 + 7-digit number) |
| Local call inside the same area code | 7-digit number in most areas; 10 digits where an overlay code is active |
| From the UK or Europe | 00 1 586 XXX XXXX |
| From Australia | 0011 1 586 XXX XXXX |
| From a mobile phone anywhere | +1 586 XXX XXXX |
Whatever country you are calling from, the + symbol replaces the exit code. Save the contact as +1 586 XXXXXXX and it will dial correctly from any phone in the world.
Time Zone for Area Code 586
Calls to a 586 number ring in the America/Detroit time zone, standard offset UTC-05:00. Daylight saving time applies here, so the offset moves forward one hour from March to November.
Note: the four Upper Peninsula counties bordering Wisconsin use Central time, one hour behind.
Cities and Communities Served by 586
The following places fall inside the 586 calling area:
Other Area Codes in Michigan
These codes also serve Michigan. Area codes are assigned by the North American Numbering Plan Administration (NANPA).
| Area Code | Cities / Coverage |
|---|---|
| 231 | Muskegon, Traverse City |
| 248 | Troy, Pontiac |
| 269 | Kalamazoo, Battle Creek |
| 313 | Detroit |
| 517 | Lansing, Jackson |
| 616 | Grand Rapids |
| 734 | Ann Arbor |
| 810 | Flint |
| 906 | Upper Peninsula |
| 947 | Oakland County (overlay) |
| 989 | Saginaw, Midland |
See all 12 area codes in Michigan →
Frequently Asked Questions
Where is area code 586?
Area code 586 is in Michigan, United States. It covers Warren, Sterling Heights.
What time zone is area code 586 in?
Area code 586 rings in the America/Detroit time zone (UTC-05:00 standard).
Do I need to dial 1 before area code 586?
Yes, for a long-distance call inside the US and Canada you dial 1 first, then 586, then the seven-digit number. The 1 is the North American long-distance trunk prefix — it is not the country code. From outside North America you dial your exit code then 1 then 586.
Is area code 586 toll-free?
No. 586 is a standard geographic area code, so normal long-distance rates apply unless your plan includes them. Toll-free NANP codes are 800, 833, 844, 855, 866, 877 and 888.