Area code 313 — Michigan
Area code 313 is in Michigan and serves Dearborn, Grosse Pointes, Detroit. Time zone, overlays, counties and ZIP codes.
| Location | Michigan (Dearborn, the Grosse Pointes, Detroit, and the latter's enclaves of Hamtramck and Highland Park) |
|---|---|
| Main places | Dearborn, Grosse Pointes, Detroit |
| State | Michigan |
| Status | In service · since 1947 |
| Time zone | Eastern · |
| Overlay codes | 679 Overlays share the same area. Local calls usually need 10-digit dialing. |
| Local dialing | 10 digits |
History
- 1993: split to create 810
- 1997: split to create 734
- 2025: overlaid by 679
Counties (approximate)
Livingston CountyMacombMacomb CountyMonroe CountyOaklandOakland CountySt. Clair CountyWashtenawWashtenaw CountyWayneWayne County
ZIP codes in area code 313
Approximate: area code boundaries follow telephone rate centers, not ZIP codes.
48007 Troy48009 Birmingham48012 Birmingham48015 Center Line48017 Clawson48021 Eastpointe48025 Franklin48026 Fraser48028 Harsens Island48030 Hazel Park48033 Southfield48034 Southfield48035 Clinton Township48036 Clinton Township48037 Southfield48038 Clinton Township48042 Macomb48043 Mount Clemens48044 Macomb48045 Harrison Township48046 Mount Clemens48047 New Baltimore48051 New Baltimore48066 Roseville48067 Royal Oak48068 Royal Oak48069 Pleasant Ridge48070 Huntington Woods48071 Madison Heights48072 Berkley48073 Royal Oak48075 Southfield48076 Southfield48080 Saint Clair Shores48081 Saint Clair Shores48082 Saint Clair Shores48083 Troy48084 Troy48085 Troy48086 Southfield
Format a 313 number
US numbers are written as (313) 555-0123 or 313-555-0123. From outside the US, dial +1 313 555 0123.
Is a call from 313 a scam?
An area code only tells you where a number was assigned. Caller ID can be faked (“spoofed”), so do not trust a call just because the area code looks local. Never share codes or payment details with unexpected callers.
Sources: NANPA via NumberResearch.org (CC BY 4.0); place names and history from Wikipedia (CC BY-SA 4.0). See data sources.