The 734 area code serves western and southern Wayne County plus Washtenaw and Monroe counties in southeastern Michigan, including Ann Arbor. Created in 1997 in a split from Detroit’s 313 code, it is a geographic area code for the western Detroit suburbs and college country. If a 734 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 734 at a Glance
| Detail | Information |
|---|---|
| Area Code | 734 |
| State | Michigan (MI) |
| Major Cities | Ann Arbor, Livonia, Canton, Monroe |
| Time Zone | Eastern Time (ET) |
| Country Code | +1 (USA) |
| Overlay Codes | None (standalone) |
Geographic Coverage & Major Cities
Area code 734 covers western and southern Wayne County along with Washtenaw and Monroe counties in southeastern Michigan, southwest of Detroit.
- Ann Arbor – home of the University of Michigan
- Livonia & Westland – western Wayne County suburbs
- Canton & Ypsilanti – fast-growing communities
- Monroe – a city on Lake Erie south of Detroit
From a world-class university town to western Detroit suburbs, a 734 number is closely tied to the identity of southeastern Michigan west of the city.
A Brief History of Area Code 734
Area code 734 was created in 1997 in a split from the 313 code, taking western and southern Wayne County plus Washtenaw and Monroe. Because it serves a distinct suburban and college region, 734 has not required an overlay and continues on a single area code.
Time Zone & Best Time to Call
Numbers in the 734 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 734
Because 734 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 – 734-XXX-XXXX.
- 11-digit dialing: You can also dial 1-734-XXX-XXXX; the leading 1 is the NANP country code.
Calling from outside the United States
- Format: [exit code] + 1 + 734 + XXX + XXXX
- From the UK, Europe, or most of Asia/Africa: 00 1 734 XXX XXXX
- From any mobile phone worldwide: +1 734 XXX XXXX
Is Area Code 734 a Scam? Safety & Protection Tips
Area code 734 is a legitimate Michigan area code – a call from it is not fraudulent by default. However, scammers frequently spoof local codes like 734, 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 University of Michigan students |
| Utility shut-off threats | Fake DTE Energy disconnection demands |
How to report, block, and look up 734 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 734 shares and borders several other Michigan codes:
- 313 – the city of Detroit to the east, from which 734 split (see our 313 area code guide)
- 248 & 947 – Oakland County to the north (see our 248 area code guide)
- 517 – the Lansing and Jackson area to the west (see our 517 area code guide)
- 269 – southwest Michigan to the west (see our 269 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 734
Where is the 734 area code located?
Area code 734 covers western and southern Wayne County plus Washtenaw and Monroe counties in Michigan, including Ann Arbor, Livonia, and Canton. It operates on Eastern Time.
Does the 734 area code have an overlay?
No. Area code 734 currently covers its region on a single area code, without a second overlay code layered on top.
Is 734 a landline or cell phone area code?
Both. Area code 734 serves landlines, mobile phones, and VoIP numbers throughout western and southern Wayne County and the Ann Arbor area.
Should I answer a call from an unknown 734 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 734 Guides
- Is a 734 call safe? Read Is area code 734 a scam? Spam & safety guide.
- Local coverage: see the Ann Arbor area code guide.
- Worried about spam or robocalls? Browse our Scam Alerts directory.