🇺🇸 313 area code
Area code 313 covers Detroit, Dearborn, Redford Charter Township and Taylor and the surrounding area in Michigan. It shares that territory with 679, so the same neighbourhood can have numbers in any of them. Enter a 313 number below for a free check before you call back.
- Location: Detroit, Michigan
- Time zone: Eastern (UTC−5)
- In service since 1947
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Area code 313 at a glance
- Area code
- 313
- Location
- Michigan, United States
- Main cities
- Detroit, Dearborn, Redford Charter Township, Taylor, Highland Park, Lincoln Park
- Time zone
- Eastern (UTC−5)
- Local time now
- —
- In service since
- 1947
- Created from
- 313
- Overlay codes
- 679
- Codes split from it
- 313, 679, 734, 810
- Local calls
- Dial 10 digits
- Number format
- (313) 555-0123
- From abroad
- +1 313 555 0123
Cities in area code 313
- Detroit
- Dearborn
- Redford Charter Township
- Taylor
- Highland Park
- Lincoln Park
Is a 313 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 313 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 313 number to people in Michigan because a local-looking call is more likely to be answered. If a 313 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 313
313 is one of the original North American area codes, created in 1947 when AT&T and the Bell System first divided the continent into numbering plan areas.
It is part of the 313/679 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
As the region grew, 313, 679, 734 and 810 were carved out of or added to 313.
Area codes
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Вопросы и ответы
Area code 313 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 313?
Area code 313 is in Michigan, United States. It covers Detroit, Dearborn, Redford Charter Township, Taylor, Highland Park and Lincoln Park.
What time zone is area code 313?
313 is in the Eastern (UTC−5) time zone, and observes daylight saving time.
What area codes overlay 313?
679 serves the same area as 313. Numbers in all of them are local to one another.
When did area code 313 start?
313 entered service in 1947, created from 313.
How do I find out who called me from 313?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 313?
If you live in or near Michigan, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 313 callers who will not leave a message are best looked up before you call back.
Got a call from 313?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.