Michigan · Eastern Time
586 Area Code
Area code 586 is in Michigan, serving Macomb County suburbs northeast of Detroit. It is in the Eastern Time zone.
Last updated October 1, 2026 · Source: NANPA
Where is the 586 area code?
586 is a Michigan area code covering Macomb County suburbs northeast of Detroit. In the wider directory it sits in the Midwest region.
Cities in the 586 area code
- Warren
- Sterling Heights
- St. Clair Shores
- Roseville
- Eastpointe
- Mount Clemens
- Fraser
- Utica
- New Baltimore
- Center Line
- Clinton Township
- Shelby Township
- Macomb
- Chesterfield
Counties served by 586
Macomb County.
Time zone note: Eastern statewide except four Upper Peninsula counties near Wisconsin (Central).
Dialing 586
Warren, MI is currently served by the single area code 586, with no overlay. Ten-digit dialing (area code + seven-digit number) always works and is increasingly the norm nationwide; some local calls may still connect with seven digits. If a future overlay is added, 10-digit dialing would become mandatory.
From outside the US, dial +1 586 followed by the seven-digit number.
History of the 586 area code
586 went into service on September 22, 2001, created when it was split from 810. It serves Warren and the surrounding part of Michigan. For how codes are created, split, and overlaid, see how area codes work.
Is 586 a scam or spam risk?
586 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 586 number on your screen is no guarantee the caller is in Warren, MI or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Other Michigan area codes
Explore more
See every code in Michigan, compare codes across the Midwest region, or view all Eastern Time codes. You can also browse the 5XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
586 area code FAQ
Where is the 586 area code?
The 586 area code is in Michigan, covering Macomb County suburbs northeast of Detroit, in the Midwest region.
What cities are in the 586 area code?
Cities in the 586 area code include Warren, Sterling Heights, St. Clair Shores, Roseville, Eastpointe, Mount Clemens, Fraser, Utica, New Baltimore and Center Line.
What time zone is 586 in?
586 is in the Eastern Time zone. Eastern statewide except four Upper Peninsula counties near Wisconsin (Central).
When did the 586 area code start?
586 went into service on September 22, 2001.
Do I have to dial 10 digits for 586?
Ten-digit dialing always works, and many areas now require it; some local calls in this area may still connect with seven digits.
Is 586 a toll-free or premium code?
No. 586 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.