Prefix 313-489 — Detroit Zone 05, MI

NANPA CO code assignment, current as of July 28, 2026.

Area code
313
Prefix (NXX)
489
Rate center
Detroit Zone 05
State
Michigan
Time zone
Eastern
Code holder
BANDWIDTH.COM CLEC, LLC - MI
OCN
991E
Pooled
Yes (thousands-block pooling)
Assigned
2021-01-12
LATA
340

Numbers in the 313-489 prefix are registered to the Detroit Zone 05 rate center in MI, inside area code 313. The prefix is the second block of a ten-digit US number (313-489-XXXX) and pins the number to a billing locality.

Code-holder of record: BANDWIDTH.COM CLEC, LLC - MI (OCN 991E), assigned January 12, 2021. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 313-489 numbers may be served by different companies.

The rate center lies in the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area. The serving LATA is 340. Local time follows the Eastern zone.

Spoofing means this prefix on your screen doesn't guarantee a Detroit Zone 05 caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 313-489
PrefixRate centerCode holder
313-486 Detroit Zone 05 LEVEL 3 COMMUNICATIONS, LLC - MI
313-487 Detroit Zone 01 PAETEC ITEL, LLC
313-488 Detroit Zone 01 COMMIO, LLC
313-490 Detroit Zone 06 TELEPORT COMMUNICATIONS AMERICA, LLC - MI
313-491 Detroit Zone 04 MICHIGAN BELL TEL CO
313-492 Detroit Zone 05 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC

FAQ

Where is 313-489 located?

The prefix is assigned to the Detroit Zone 05 rate center in MI, area code 313. It is part of the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area.

Which company owns 313-489 numbers?

BANDWIDTH.COM CLEC, LLC - MI holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.

Is a call from 313-489 safe to answer?

The prefix itself says nothing about the caller. Legitimate Detroit Zone 05 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.