The 906 area code serves the entire Upper Peninsula of Michigan, from Marquette and the Keweenaw to Sault Ste. Marie and the Wisconsin border. In service since 1947, it is unusual in that it spans two time zones. If a 906 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 906 at a Glance
| Detail | Information |
|---|---|
| Area Code | 906 |
| State | Michigan (MI) |
| Major Cities | Marquette, Sault Ste. Marie, Escanaba, Houghton |
| Time Zone | Eastern & Central Time |
| Country Code | +1 (USA) |
| Overlay Codes | None (standalone) |
Geographic Coverage & Major Cities
Area code 906 covers all of Michigan’s Upper Peninsula, a vast, forested region between Lakes Superior, Michigan, and Huron. It stretches from the Wisconsin line in the west to the Sault at the eastern tip.
- Marquette – the largest city in the Upper Peninsula, on Lake Superior
- Sault Ste. Marie – the historic city at the Soo Locks on the Canadian border
- Escanaba & Houghton – Lake Michigan and Keweenaw communities; Houghton is home to Michigan Tech
- Iron Mountain & Menominee – western UP cities near Wisconsin
From Lake Superior shorelines to remote north woods and mining country, a 906 number is closely tied to the distinctive identity of the Upper Peninsula.
A Brief History of Area Code 906
Area code 906 was one of the original area codes established in 1947 and has covered the entire Upper Peninsula ever since. Because it serves a large but sparsely populated region, 906 has never required an overlay and still covers the whole UP on a single area code.
Time Zone & Best Time to Call
The 906 area code covers the entire Upper Peninsula, which spans two time zones. Most of the UP uses Eastern Time (ET), matching the rest of Michigan, but four counties in the far west – Gogebic, Iron, Dickinson, and Menominee – observe Central Time (CT), one hour behind, to align with neighboring Wisconsin. Both zones observe Daylight Saving Time from March to November.
How to Dial Phone Numbers in Area Code 906
Because 906 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 – 906-XXX-XXXX.
- 11-digit dialing: You can also dial 1-906-XXX-XXXX; the leading 1 is the NANP country code.
Calling from outside the United States
- Format: [exit code] + 1 + 906 + XXX + XXXX
- From the UK, Europe, or most of Asia/Africa: 00 1 906 XXX XXXX
- From any mobile phone worldwide: +1 906 XXX XXXX
Is Area Code 906 a Scam? Safety & Protection Tips
Area code 906 is a legitimate Michigan area code – a call from it is not fraudulent by default. However, scammers frequently spoof local codes like 906, 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 |
| Student & scholarship scams | Fake tuition or financial-aid calls targeting Michigan Tech or NMU students |
| Utility shut-off threats | Fake Upper Peninsula Power or We Energies disconnection demands |
How to report, block, and look up 906 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 906 shares and borders several other codes:
- 989 – central and northeastern Michigan across the Mackinac Bridge to the south (see our 989 area code guide)
- 231 – the northwestern Lower Peninsula (Traverse City) across the straits
- 715 & 534 – neighboring northern Wisconsin to the west and south
- 616 – Grand Rapids and West Michigan far to the south (see our 616 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 906
Where is the 906 area code located?
Area code 906 covers the entire Upper Peninsula of Michigan, including Marquette, Sault Ste. Marie, Escanaba, and Houghton.
What time zone is the 906 area code in?
Most of the Upper Peninsula uses Eastern Time, but four western counties – Gogebic, Iron, Dickinson, and Menominee – are on Central Time, one hour behind, to align with Wisconsin.
Is 906 a landline or cell phone area code?
Both. Area code 906 serves landlines, mobile phones, and VoIP numbers throughout the Upper Peninsula.
Should I answer a call from an unknown 906 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 906 Guides
- Is a 906 call safe? Read Is area code 906 a scam? Spam & safety guide.
- Worried about spam or robocalls? Browse our Scam Alerts directory.