Area code 586 – Michigan
586 has served Michigan since 2001, split from 810. 546 of its 786 number blocks are allocated (69%). No carrier dominates: AT&T 33.9%, Verizon 28.2%, Other CLEC / VoIP 11.2%. Spam complaints are comparatively rare: 386 in the 33 days to 30 October 2026, 255th of the 422 codes with five or more complaints.
- State
- Michigan
- In service since
- 2001
- Time zone
- Eastern
- Shares area with
- No overlay
Who holds 586 number blocks
Share of the 546 assigned NXX blocks (69.5% of the 786 possible), across 30 carriers. This is share of number blocks, not of subscribers.
- AT&T33.9%
- Verizon28.2%
- T-Mobile12.1%
- American Messaging4.9%
- Lumen4.9%
- Onvoy4.4%
- Other CLEC / VoIP4%
- Windstream2.4%
- Comcast1.8%
- Spok1.6%
- Bandwidth0.7%
- Peerless0.4%
- Dish0.2%
- Charter0.2%
- Frontier0.2%
Spam complaints naming 586
FTC Do Not Call complaints where the caller ID was a 586 number, 28 Sep – 30 Oct 2026 (33 days). Caller IDs on spam calls are frequently spoofed, so these are complaints about the code, not calls proven to originate in it.
Rate centers in 586
NANPA allocates number blocks to rate centers and records their names abbreviated to ten characters, so these are NANPA's codes rather than place names – CHAMPAURBN is Champaign-Urbana, NWYRCYZN01 is a New York City zone. We show them unchanged instead of guessing at the full names. Showing the largest 5 of 11.
Timeline
- 2001 586 goes into service, split from or overlaid on 810.
More about 586
Separate pages for the questions that need their own answer: what time it is there, what the complaint data says, who holds the number blocks, and how the code compares with the one it shares its area with.
Frequently asked about 586
What state is area code 586?
Michigan.
Is a call from 586 a scam?
Not by itself. 586 drew 386 FTC complaints in the 33 days to 30 October 2026, 255th of 422 ranked codes – mid-pack or lower. Spam callers spoof caller IDs, so the only useful check is the full number.
Which carrier owns 586 numbers?
AT&T holds the largest share of assigned number blocks at 33.9%. The rest is spread across 3 other carriers. This is share of number blocks, not of subscribers – people keep their numbers when they switch carriers.
Do I need to dial 10 digits in 586?
No. NANPA records 586 as 7-digit dialing for local calls.
Sources and verification
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- NANPA – CO Code Assignment Records, All States (utilized), file updated 11/01/2026, retrieved Nov 1, 2026
- FTC – Do Not Call Reported Calls Data, 25 daily files 28 Sep – 30 Oct 2026, retrieved Nov 1, 2026
NANPA dialing note for this code: “7D”. Reviewed by the data desk. Spotted an error? Request a correction.