WCWhoCalledLookupUS

313 Area Code — Scam Calls, Location & Who's Calling

Area code 313 serves Michigan in the Eastern time zone, in service since 1947. The FCC has 3,054 unwanted-call complaints against 1,965 different 313 numbers on record. Look up the exact number that called you below.

Most-reported 313 numbers

Ranked by FCC unwanted-call complaints. Click a number for its full report.

313 unwanted-call complaints, last 12 months

Monthly FCC complaint volume against 313 numbers. Spikes usually mark an active robocall campaign cycling through the code.

Carriers operating in 313

Carriers assigned to 313 prefixes that visitors have looked up so far — resolved from official NPA-NXX assignment records.

  • OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLCWireless · 18 prefixes
  • MICHIGAN BELL TEL COI · 14 prefixes
  • LEVEL 3 COMMUNICATIONS, LLC - MIC · 10 prefixes
  • MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MIC · 10 prefixes
  • BANDWIDTH.COM CLEC, LLC - MIC · 6 prefixes
  • NEW CINGULAR WIRELESS PCS, LLC - ILWireless · 6 prefixes
  • ONVOY, LLCV - MIC · 5 prefixes
  • PAETEC ITEL, LLCC · 4 prefixes

About area code 313

Serves
Michigan
Time zone
Eastern
In service since
1947-01-01
Overlay
Yes — 10-digit dialing

Source: NANPA numbering records, refreshed weekly.

Spam calls from 313? What to know

Seeing repeated missed calls from 313 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in Michigan — spoofing software displays whatever digits the campaign chooses. Never call unknown numbers back; look them up first, and report unwanted calls to the FCC to build the public record.

Area code 313 FAQs

Where is area code 313?

Area code 313 serves Michigan, in the Eastern time zone. It is part of an overlay complex, so multiple area codes serve the same territory and 10-digit dialing is required. It has been in service since 1947.

Why do I keep getting calls from 313 numbers?

Robocallers use "neighbor spoofing" — displaying a number with a local area code to make you more likely to answer. A call showing area code 313 may not originate from Michigan at all. Look up the full 10-digit number on this site to see its complaint history before calling back.

Are 313 numbers safe to call back?

Area codes themselves are neither safe nor unsafe — 313 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 3,054 unwanted-call complaints against 1,965 distinct 313 numbers in our current data window. Check the specific number's report page before returning a missed call.