Prefix 313-546 — Detroit Zone 01, MI
- Area code
- 313
- Prefix (NXX)
- 546
- Rate center
- Detroit Zone 01
- State
- Michigan
- Time zone
- Eastern
- Code holder
- TELEPORT COMMUNICATIONS AMERICA, LLC - MI
- OCN
- 770E
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2020-07-02
- LATA
- 340
313-546 identifies a block of numbers in Detroit Zone 01, MI, within the 313 area code. Every US prefix is tied to exactly one rate center; this one is Detroit Zone 01.
The rate center lies in the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area. The serving LATA is 340. Local time follows the Eastern zone.
Treat the on-screen number as a hint, not evidence — 313-546 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
Code-holder of record: TELEPORT COMMUNICATIONS AMERICA, LLC - MI (OCN 770E), assigned July 2, 2020. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 313-546 numbers may be served by different companies.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 313-543 | Detroit Zone 05 | MICHIGAN BELL TEL CO |
| 313-544 | Detroit Zone 04 | METROPCS, INC. |
| 313-545 | Detroit Zone 01 | MICHIGAN BELL TEL CO |
| 313-547 | Detroit Zone 05 | HD CARRIER LLC |
| 313-548 | Detroit Zone 02 | BANDWIDTH.COM CLEC, LLC - MI |
| 313-549 | Detroit Zone 05 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
FAQ
Where is 313-546 located?
The prefix is assigned to the Detroit Zone 01 rate center in MI, area code 313. It is part of the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area.
Which company owns 313-546 numbers?
TELEPORT COMMUNICATIONS AMERICA, 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 313-546 safe to answer?
The prefix itself says nothing about the caller. Legitimate Detroit Zone 01 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.