Home to the University of Michigan and one of the country’s premier college towns, Ann Arbor is a leafy, tech-forward city nicknamed “Tree Town” west of Detroit. The entire region sits under a single area code, 734, which keeps local dialing simple. This guide covers the 734 area code, its coverage across Washtenaw County, dialing rules, major ZIP codes, and local scam warnings.
Ann Arbor Area Codes at a Glance
| Detail | Information |
|---|---|
| Primary Area Code(s) | 734 |
| Overlay Area Code(s) | None (734 only) |
| Time Zone | Eastern Time (ET) – EST / EDT |
| Major County | Washtenaw County |
| Dialing Format | 7 or 10-digit dialing |
Area Code Breakdown & District Mapping
734 – Western Wayne & Washtenaw Code
Area code 734 was created in 1997 when it split from 313, serving western Wayne County and Washtenaw County including Ann Arbor, Ypsilanti, and Livonia. It covers Ann Arbor as a single, non-overlaid area code.
Neighborhoods & Local Coverage
Ann Arbor’s 734 code covers a vibrant college town centered on the University of Michigan’s Central Campus and the lively Downtown along Main Street and State Street. The historic Kerrytown district, with its farmers market and shops, and the leafy Old West Side neighborhood give the city its distinctive charm.
Beyond downtown, the same code reaches the Burns Park and Water Hill residential neighborhoods, the U-M medical and North campuses, the Nichols Arboretum along the Huron River, and neighboring Washtenaw County communities like Ypsilanti and Saline. The 734 code also covers much of western Wayne County toward Livonia and Canton.
Local Dialing Rules & International Format
Because 734 is a single area code with no overlay, Ann Arbor still permits 7-digit dialing for local calls, though 10-digit dialing (area code + number) always works. Neighboring Detroit uses 313/679.
To call Ann Arbor from outside the United States, dial your country’s exit code, then the U.S. country code +1, followed by the 10-digit number (for example, +1 734 XXX-XXXX). From inside the U.S. and Canada, simply dial 1 before the 10-digit number for long-distance calls.
Major ZIP Codes Covered
The 734 service area spans many of Ann Arbor’s core ZIP codes, including 48103, 48104, 48105, 48108, and 48109.
Spam & Scam Call Warnings in Ann Arbor
Ann Arbor residents report spoofed 734 robocalls targeting students with fake-tuition, scholarship, and rental-deposit scams. Utility-shutoff threats from callers posing as DTE Energy are also common.
| Scam Type | What to Watch For |
|---|---|
| Neighbor Spoofing | Calls that mimic a local 734 prefix to look familiar. |
| Utility / Toll Scams | Threats to shut off power or demand toll payment via gift cards. |
| IRS / Government | Robocalls claiming legal action — agencies never call to demand instant payment. |
Red flag: Any caller who pressures you to pay immediately with gift cards, wire transfers, or cryptocurrency is almost certainly running a scam. Hang up and verify through an official number.
↑ See the complete list of All US Area Codes by State for every code across the country.
Nearby & Related Michigan Cities
Frequently Asked Questions
What area code is Ann Arbor, MI?
Ann Arbor uses area code 734, which covers Washtenaw County and western Wayne County.
Does 734 cover Ypsilanti and Livonia?
Yes. 734 serves Ann Arbor, Ypsilanti, Livonia, Canton, and much of western Wayne and Washtenaw counties.
Do I have to dial 10 digits in Ann Arbor?
Not necessarily. Because 734 has no overlay, 7-digit local dialing still works, but 10-digit dialing is always accepted.
What time zone is Ann Arbor in?
Ann Arbor observes Eastern Time (EST/EDT), like most of Michigan.
Is Ann Arbor getting a new area code?
Not currently. Ann Arbor and the 734 region remain on a single area code with no overlay, which is why 7-digit local dialing still works alongside 10-digit dialing across Washtenaw and western Wayne counties.
Stay Safe & Explore More
- Verify an unknown caller in our Scam Alerts directory.
- Comparing nationwide numbers? See our Toll-Free Numbers guides.