Area code · MI
313 area code
The 313 area code serves Detroit, Michigan. Look up a specific 313 number, or browse other popular area codes.
2 min readUpdated October 6, 2026By the SecondBars team
Location
Detroit, MI
Timezone
Eastern
State
Michigan
Major cities
Detroit, Dearborn
ABOUTAbout the 313 area code
The 313 area code is assigned to Detroit, Michigan. Phone numbers with this area code are used by residents and businesses in the Detroit metropolitan area and surrounding communities.
If you've received an unwanted call from a 313 area code number, use the phone lookup to see what we have on file for it. Don't call back numbers you don't recognize or share personal details, and block numbers that keep calling.
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