Every US area code, explainedUnited States · +1
Area Code Contact ES
Menu
AREA CODE · MICHIGAN

Area code 313

Area code 313 covers Detroit, Michigan. Map, time zone, overlays, carriers, the full list of prefixes and how to dial it.

State: Michigan Major City: Detroit Eastern Time (ET) Overlay: 313/679
01 / WHERE IT IS

Where is area code 313?

Area code 313 is assigned to Detroit and the surrounding region in Michigan. Calls to numbers that start with 313 are routed to this area.

Area code 313 shares its territory with 679. Because it is an overlay, local calls require dialing all 10 digits.

Counties covered

Wayne County

Line types

  • Mobile 42.33%
  • Landline 57.54%
02 / MAP

Area code 313 on the map

The shaded area joins the code’s numbering centers; the marker shows its main city.

Loading…

© OpenStreetMap contributors

03 / LOCAL TIME

Current time in Detroit

This area code is in the Eastern Time (ET) time zone.

Local timeDetroit, MI--:--:--

Loading…

America/New_YorkLive
04 / HOW TO DIAL

How to call Detroit

WITHIN THE US313 XXX XXXX

Always 10 digits — landline, mobile or VoIP. Local, long distance or a different state: the format is always the same. You do not need to dial the 1 first.

FROM ABROAD+1 313 XXX XXXX

Exit codes: 00 Europe/Mexico · 011 Canada · 010 Japan · + universal

WHATSAPP / IMESSAGE+1 313 XXX XXXX

Always save the number in international format so messaging apps recognize it correctly:

Call typeTraditional landlineMobile / VoIP
Local (same area code)10 digits10 digits
US long distance1 + 10 digits10 digits
Emergency911911
🌐Universal+1 313 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 313 555 0123
🇦🇺Australia0011 1 313 555 0123
🇯🇵Japan010 1 313 555 0123
HAVE THE FULL NUMBER?

Learn more about that number.

Check the line type and the carrier the number block was originally assigned to.

10 digits to see the carrier and line type of the number

05 / CARRIERS

Carriers in area code 313

Share of the number blocks by carrier and line type.

Landline

AT&T
61%
Bandwidth
6%
Verizon Business
6%
Sinch
6%
Lumen Technologies
5%
Others
16%

Mobile

T-Mobile USA
43%
AT&T Mobility
28%
Verizon Wireless
17%
USA Mobility
11%
Sinch
1%

Carrier shown is the original assignment of each number block and may differ today because of number portability.

06 / PREFIXES

Complete list of prefixes for area code 313

763 number blocks (NXX) assigned in this area code.

PrefixTypeCityCarrier
(313) 200 Mobile Detroit Zone 1 T-Mobile USAOMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC
(313) 201 Mobile Detroit Zone 4 USA MobilityAMERICAN MESSAGING SERVICES, LLC
(313) 202 Landline Detroit Zone 1 AT&TTELEPORT COMMUNICATIONS AMERICA, LLC - MI
(313) 203 Landline Detroit Zone 6 AT&TTELEPORT COMMUNICATIONS AMERICA, LLC - MI
(313) 204 Mobile Detroit Zone 5 AT&T MobilityNEW CINGULAR WIRELESS PCS, LLC - IL
(313) 205 Mobile Detroit Zone 5 T-Mobile USAOMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC
(313) 206 Landline Detroit Zone 6 AT&TMICHIGAN BELL TEL CO
(313) 207 Mobile Detroit Zone 5 T-Mobile USAOMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC
(313) 208 Landline Detroit Zone 1 Metro by T-MobileMETROPCS, INC.
(313) 209 Landline Detroit Zone 1 InfobipPEERLESS NETWORK OF MICHIGAN, LLC - MI

Showing 10 of 763 prefixes

07 / FAQ

Frequently asked questions about area code 313

Where is area code 313 used?
Area code 313 serves Detroit and the surrounding area in Michigan, including Wayne County.
What city is area code 313 from?
The main city of area code 313 is Detroit, MI.
What time zone is area code 313 in?
Area code 313 is in the Eastern Time (ET) time zone (America/New_York).
Is 313 an overlay area code?
Yes. It shares its territory with 679. In an overlay, every call requires dialing all 10 digits.
How do I call a number with area code 313 from the United States?
Dial the 10 digits: 313 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 313 number from another country?
Dial your country's exit code (or +), then 1, then 313 and the seven-digit number. From a mobile you can use +1 313 XXX XXXX.
Which carriers use area code 313?
Most landline blocks belong to AT&T and most mobile blocks to T-Mobile USA. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 313 for landlines, mobiles or both?
Both. About 57.54% of the number blocks are landline, 42.33% mobile.
How do I save a 313 number in WhatsApp or my phone?
Save it in international format: +1 313 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 313?
The area code only shows the region a number was assigned to; it does not tell you who is calling. Scammers can fake any area code, so do not share personal or banking information with unknown callers, and let unknown numbers go to voicemail.
KEEP EXPLORING

Nearby area codes

419Toledo, OH567Toledo, OH216Cleveland, OH440Willoughby, OH234Akron, OH330Akron, OH

Other area codes in Michigan

231 · Muskegon248 · Pontiac269 · Kalamazoo517 · Lansing586 · Mount Clemens616 · Grand Rapids734 · Ann Arbor810 · Flint906 · Marquette947 · Ortonville989 · Saginaw

View all Michigan area codes →