Prefix 313-398 — Detroit Zone 01, MI
- Area code
- 313
- Prefix (NXX)
- 398
- Rate center
- Detroit Zone 01
- State
- Michigan
- Time zone
- Eastern
- Code holder
- OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC
- OCN
- 2964
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2015-07-23
- LATA
- 340
The 313-398 prefix belongs to area code 313 and is anchored to the Detroit Zone 01 rate center (MI). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
Detroit Zone 01 is part of the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area. For routing purposes it sits in LATA 340. Numbers here keep Eastern time.
Code-holder of record: OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC (OCN 2964), assigned July 23, 2015. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 313-398 numbers may be served by different companies.
Caller ID showing 313-398 is not proof the call came from Detroit Zone 01: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 313-395 | Detroit Zone 06 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC |
| 313-396 | Detroit Zone 01 | MICHIGAN BELL TEL CO |
| 313-397 | Detroit Zone 04 | COMCAST IP PHONE, LLC |
| 313-399 | Detroit Zone 05 | OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC |
| 313-400 | Detroit Zone 05 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI |
| 313-401 | Detroit Zone 05 | NEW CINGULAR WIRELESS PCS, LLC - IL |
FAQ
Where is 313-398 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 313-398 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 313-398 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.