Prefix 313-431 — Detroit Zone 04, MI
- Area code
- 313
- Prefix (NXX)
- 431
- Rate center
- Detroit Zone 04
- State
- Michigan
- Time zone
- Eastern
- Code holder
- OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC
- OCN
- 2964
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2023-08-04
- LATA
- 340
A phone number starting 313-431 was issued in the Detroit Zone 04 rate center of MI — part of area code 313.
NANPA's central-office code records list OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (OCN 2964) as the code holder, assigned August 4, 2023. Because 313-431 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
A scammer can display 313-431 without ever touching MI. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.
Detroit Zone 04 is part of the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area. For routing purposes it sits in LATA 340. Numbers here keep Eastern time.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 313-428 | Detroit Zone 05 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC |
| 313-429 | Detroit Zone 06 | TELEPORT COMMUNICATIONS AMERICA, LLC - MI |
| 313-430 | Detroit Zone 01 | AMERICAN MESSAGING SERVICES, LLC |
| 313-432 | Detroit Zone 02 | LEVEL 3 COMMUNICATIONS, LLC - MI |
| 313-433 | Detroit Zone 05 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC |
| 313-434 | Detroit Zone 05 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
FAQ
Where is 313-431 located?
The prefix is assigned to the Detroit Zone 04 rate center in MI, area code 313. It is part of the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area.
Which company owns 313-431 numbers?
OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 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 313-431 safe to answer?
The prefix itself says nothing about the caller. Legitimate Detroit Zone 04 businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.