The hometown of Henry Ford and the global headquarters of Ford Motor Company, Dearborn is a Wayne County city with the largest Arab-American community in the United States. As part of the Detroit core, it shares the 313 code and its new overlay. This guide breaks down Dearborn’s 313 and 679 codes, the required 10-digit dialing, major ZIP codes, and local scam warnings.
Dearborn Area Codes at a Glance
| Detail | Information |
|---|---|
| Primary Area Code(s) | 313 |
| Overlay Area Code(s) | 679 |
| Time Zone | Eastern Time (ET) – EST / EDT |
| Major County | Wayne County |
| Dialing Format | 10-digit dialing required |
Area Code Breakdown & District Mapping
313 – Detroit-Area Core Code
Area code 313 is Detroit’s original 1947 code, and it covers Dearborn as part of the urban core of Wayne County. A 313 number ties Dearborn directly into the greater Detroit dialing area.
679 – Detroit-Area Overlay
Area code 679 is the new overlay for the 313 region, layered over the same Detroit-area geography that includes Dearborn. New local lines may be issued a 679 number, fully local to existing 313 numbers.
Neighborhoods & Local Coverage
Dearborn’s 313/679 codes cover a city of two distinct halves. East Dearborn, centered on the bustling Warren Avenue corridor, is the heart of the nation’s largest Arab-American community, filled with restaurants, bakeries, and shops. West Dearborn features a walkable downtown, the West Village district, and tree-lined residential streets.
The same codes reach the sprawling Ford Motor Company campus and the Rouge factory complex, the world-famous Henry Ford Museum and Greenfield Village, and the University of Michigan-Dearborn campus. Because Dearborn is woven directly into the Detroit core, its numbers share the 313/679 codes with the city next door.
Local Dialing Rules & International Format
Dearborn and the entire 313 region have required 10-digit dialing since the 679 overlay was introduced — always dial the area code plus the 7-digit number. Neighboring Detroit shares the same 313/679 codes, while western Wayne County uses 734.
To call Dearborn 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, +1 313 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 313 service area spans many of Dearborn’s core ZIP codes, including 48120, 48124, 48126, and 48128.
Spam & Scam Call Warnings in Dearborn
Dearborn residents report neighbor-spoofing robocalls faking a local 313 prefix, plus fake utility-shutoff threats from callers posing as DTE Energy. Bilingual Arabic-language scam calls and fake-immigration schemes also target the community.
| Scam Type | What to Watch For |
|---|---|
| Neighbor Spoofing | Calls that mimic a local 313 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 Dearborn, MI?
Dearborn uses area code 313, shared with Detroit, now joined by the overlay 679.
Does Dearborn have the same area code as Detroit?
Yes. As part of the Detroit core in Wayne County, Dearborn shares the 313/679 codes with Detroit.
Do I need to dial 10 digits in Dearborn?
Yes. With the 679 overlay active, all local calls in the 313 region require 10-digit dialing.
What time zone is Dearborn in?
Dearborn observes Eastern Time (EST/EDT), like most of Michigan.
Is 679 a real Dearborn area code?
Yes. 679 is the FCC-approved overlay for the 313 region, which includes Dearborn and the Detroit core in Wayne County. New local lines may be assigned a 679 number.
Stay Safe & Explore More
- Verify an unknown caller in our Scam Alerts directory.
- Comparing nationwide numbers? See our Toll-Free Numbers guides.