Prefix 909-323 — Diamond Bar, CA
- Area code
- 909
- Prefix (NXX)
- 323
- Rate center
- Diamond Bar
- State
- California
- Time zone
- Pacific
- Code holder
- ONVOY, LLC - CA
- OCN
- 649C
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2016-05-11
- LATA
- 730
Numbers in the 909-323 prefix are registered to the Diamond Bar rate center in CA, inside area code 909. The prefix is the second block of a ten-digit US number (909-323-XXXX) and pins the number to a billing locality.
The assigned code holder is ONVOY, LLC - CA, operating company number 649C, assigned May 11, 2016. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
The rate center lies in the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area. The serving LATA is 730. Local time follows the Pacific zone.
Spoofing means this prefix on your screen doesn't guarantee a Diamond Bar caller. Verify independently before trusting a request for money or data.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 909-320 | Fontana | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 909-321 | Ontario | CENTURYLINK COMMUNICATIONS, LLC |
| 909-322 | Ontario | METROPCS NETWORKS, LLC |
| 909-324 | Running Springs | PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
| 909-325 | Chino | PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
| 909-326 | Pomona | BANDWIDTH.COM CLEC, LLC - CA |
FAQ
Where is 909-323 located?
The prefix is assigned to the Diamond Bar rate center in CA, area code 909. It is part of the Los Angeles-Long Beach-Anaheim, CA Metropolitan Statistical Area.
Which company owns 909-323 numbers?
ONVOY, LLC - CA 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 909-323 safe to answer?
The prefix itself says nothing about the caller. Legitimate Diamond Bar businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.