The 586 area code serves Macomb County, Michigan, the populous suburban county northeast of Detroit. Created in 2001 in a split from the 810 code, it is a geographic area code for the northern Detroit suburbs. If a 586 number has appeared on your caller ID, this guide explains where it comes from, how to dial it, and how to stay safe from spoofed calls.
Quick Summary: Area Code 586 at a Glance
| Detail | Information |
|---|---|
| Area Code | 586 |
| State | Michigan (MI) |
| Major Cities | Warren, Sterling Heights, Clinton Township, Roseville |
| Time Zone | Eastern Time (ET) |
| Country Code | +1 (USA) |
| Overlay Codes | None (standalone) |
Geographic Coverage & Major Cities
Area code 586 covers Macomb County, Michigan, northeast of Detroit along Lake St. Clair. It is one of the most populous counties in the state.
- Warren – the largest city in Macomb County and third-largest in Michigan
- Sterling Heights – a major suburb north of Detroit
- Clinton Township & Roseville – populous communities
- St. Clair Shores & Mount Clemens – established lakeside towns
From automotive plants to lakeside suburbs, a 586 number is closely tied to the identity of Macomb County.
A Brief History of Area Code 586
Area code 586 was created in 2001 in a split from the 810 code, giving Macomb County its own dedicated code as the Detroit suburbs grew. Because it serves a distinct suburban county, 586 has not required an overlay and continues on a single area code.
Time Zone & Best Time to Call
Numbers in the 586 area code use Eastern Time (ET). The region observes Daylight Saving Time, shifting from EST (UTC-5) to EDT (UTC-4) between March and November each year.
How to Dial Phone Numbers in Area Code 586
Because 586 has no overlay, both 7-digit and 10-digit local dialing have historically worked, but 10-digit dialing is now the recommended standard across the United States.
Calling within the United States or Canada
- 10-digit dialing: Include the area code – 586-XXX-XXXX.
- 11-digit dialing: You can also dial 1-586-XXX-XXXX; the leading 1 is the NANP country code.
Calling from outside the United States
- Format: [exit code] + 1 + 586 + XXX + XXXX
- From the UK, Europe, or most of Asia/Africa: 00 1 586 XXX XXXX
- From any mobile phone worldwide: +1 586 XXX XXXX
Is Area Code 586 a Scam? Safety & Protection Tips
Area code 586 is a legitimate Michigan area code – a call from it is not fraudulent by default. However, scammers frequently spoof local codes like 586, faking the caller ID so their number appears to come from a trusted local line. Neighbor spoofing, which mimics the first six digits of your own number, is especially common.
Common scam tactics linked to this region
| Scam type | What to watch for |
|---|---|
| Government impersonation | Callers posing as the IRS or SSA threatening arrest or fines |
| Bank & card fraud alerts | Claims of suspicious activity seeking your account details |
| Utility shut-off threats | Fake DTE Energy disconnection demands |
| Package delivery scams | Fake texts or calls about a failed delivery with a bad link |
How to report, block, and look up 586 callers
- Never share personal or financial details with an unexpected caller, however urgent they sound.
- Block the number using your phone’s built-in call-blocking feature or a reputable call-screening app.
- Look up the number with a trusted reverse phone lookup before returning any call.
- Report it to the FTC at reportfraud.ftc.gov and register at DoNotCall.gov.
Nearby & Related Area Codes in Michigan
Area code 586 shares and borders several other Michigan codes:
- 313 – the city of Detroit to the south (see our 313 area code guide)
- 248 & 947 – Oakland County to the west (see our 248 area code guide)
- 810 & 679 – the Flint area and the Thumb to the north (see our 810 area code guide)
- 734 – western Wayne County and Ann Arbor to the southwest (see our 734 area code guide)
Explore more codes across the state on our Michigan area codes hub, or browse every prefix in our US area codes directory.
↑ See the complete list of All US Area Codes by State – every area code across all 50 states in one directory.
Explore Neighboring States
Researching area codes just across the state line? Start with these codes in the states that border Michigan:
Frequently Asked Questions About Area Code 586
Where is the 586 area code located?
Area code 586 covers Macomb County, Michigan, including Warren, Sterling Heights, Clinton Township, and Roseville. It operates on Eastern Time.
Does the 586 area code have an overlay?
No. Area code 586 currently covers Macomb County on a single area code, without a second overlay code layered on top.
Is 586 a landline or cell phone area code?
Both. Area code 586 serves landlines, mobile phones, and VoIP numbers throughout Macomb County.
Should I answer a call from an unknown 586 number?
If you are not expecting the call, let it go to voicemail. Legitimate callers leave a message, while spoofed or robocall numbers usually will not. Verify any unfamiliar number with a reverse lookup before calling back.
Related 586 Guides
- Is a 586 call safe? Read Is area code 586 a scam? Spam & safety guide.
- Local coverage: see the Warren area code guide.
- Worried about spam or robocalls? Browse our Scam Alerts directory.