586 Area CodeWarren, MI
Area code 586 covers Warren and nearby communities in Michigan, in the Eastern Time (ET) zone, home to about 485,000 people across 14 cities. It overlays 810, so the same region uses both and every local call needs all ten digits.
Where is area code 586?
Area code 586 serves part of Warren, MI and the surrounding areas. It has a single overlay (810) that serves the same area.
Overview of the 586 Area Code
What is the 586 area code?
The 586 area code serves Warren, Michigan, alongside other established area codes. When you see a 586 number, it indicates a local number within this geographic area.
Why was area code 586 created?
The 586 area code was introduced as an overlay to add numbers in Warren once the existing area code 810 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 586 Area Code
The 586 area code serves Warren and surrounding areas in Michigan. It operates within the Eastern Time (ET) time zone. It complements the coverage of area code 810. This area code covers several key cities, including:
- Warren
- Sterling Heights
- St. Clair Shores
- Roseville
- Eastpointe
- Mount Clemens
Got a call from a 586 number? It came from Warren, MI. Since 586 overlays with 810, every local call in the region needs all ten digits to land on the right line. Inside 586, Warren holds about 28% of the population; the rest is split across 13 smaller cities.
Warren Area Codes Overview
Warren is served by multiple area codes, reflecting its telecommunications needs. The 586 area code operates alongside 810. Here are the area codes serving this region:
The introduction of the 586 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 586 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Warren | MI | 137,686 | 6% | 100% |
| Sterling Heights | MI | 134,342 | 6% | 100% |
| St. Clair Shores | MI | 58,077 | 2% | 99% |
| Roseville | MI | 47,047 | 2% | 100% |
| Eastpointe | MI | 33,943 | 1% | 100% |
| Mount Clemens | MI | 15,480 | 1% | 100% |
| Fraser | MI | 14,549 | 1% | 100% |
| New Baltimore | MI | 12,132 | 1% | 100% |
| Center Line | MI | 8,533 | 0% | 100% |
| New Haven | MI | 6,711 | 0% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 586 been reported for unwanted calls?
Yes – 252 unwanted-call complaints were reported to the FTC for numbers showing a 586 area code (May 29 – Jul 2, 2026).
- 62% robocalls
- ↓ 16% vs prior period
Most-reported subjects
- Other45%113
- Dropped call or no message13%32
- Medical & prescriptions11%28
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 586?
54% assigned to a telco
- 56% Landline
- 44% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (586)200- | Landline | Comcast Ip Phone |
| (586)201- | Wireless | Verizon Wireless |
| (586)202- | Wireless | New Cingular Wireless Pcs |
| (586)203- | Landline | Level 3 Communications |
| (586)204- | Landline | Comcast Ip Phone |
| (586)205- | Wireless | Verizon Wireless |
| (586)206- | Wireless | Verizon Wireless |
| (586)207- | Landline | Level 3 Communications |
| (586)208- | Wireless | Verizon Wireless |
| (586)209- | Landline | Metropcs |
Frequently Asked Questions about the 586 Area Code
Who called me from a 586 number?
A 586 number is assigned to Warren, Michigan, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 586 code to look nearby, so a 586 number doesn't prove the caller is local. Recently, 252 unwanted-call complaints were reported to the FTC for numbers showing the 586 code (62% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 586 a scam area code?
No area code is a scam on its own. 586 is a normal, officially assigned code for Warren, Michigan. Spam callers spoof local codes to raise the odds you answer, so 586 on your caller ID says nothing about who is really calling. Recently, 252 unwanted-call complaints were reported to the FTC for numbers showing the 586 code (62% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 586 area code?
Repeated calls from different 586 numbers are usually spoofing: a robocaller rotates through 586 numbers so each call looks local and slips past simple blocks. Recently, 252 unwanted-call complaints were reported to the FTC for numbers showing the 586 code (62% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 586 number?
If you aren't expecting a 586 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 586 area code?
Block a single 586 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 586 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 586?
Area code 586 covers Warren and the surrounding area in Michigan, spanning 14 cities with about 484,989 residents. It shares its area with overlay code 810.
Is 586 a real area code?
Yes. 586 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Warren, Michigan. A real code can still show up on spoofed spam calls, so treat unknown 586 calls with normal caution.
What timezone is the 586 area code in?
The 586 area code is in the Eastern Time (ET). Because a number can be kept when someone moves or switches to VoIP, a specific 586 caller may not be in that zone.
How do I call a 586 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 586 and the seven-digit number. From a mobile phone you can usually just enter +1 586 followed by the number and let the phone add the exit code for you.