Prefix 909-258 — Rialto, CA
The 909-258 prefix belongs to area code 909 and is anchored to the Rialto rate center (CA). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
Rialto is part of the Riverside-San Bernardino-Ontario, CA Metropolitan Statistical Area. For routing purposes it sits in LATA 730. Numbers here keep Pacific time.
NANPA's central-office code records list METROPCS NETWORKS, LLC (OCN 899D) as the code holder, assigned July 21, 2008. Because 909-258 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
Caller ID showing 909-258 is not proof the call came from Rialto: 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 |
|---|---|---|
| 909-255 | Redlands | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS |
| 909-256 | Upland | TWC IP ENABLED SERVICES, LLC |
| 909-257 | Upland | PACIFIC BELL (COMPETITIVE) |
| 909-259 | Ontario | PEERLESS NETWORK OF CALIFORNIA, LLC - CA |
| 909-260 | Ontario | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 909-261 | Ontario | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
FAQ
Where is 909-258 located?
The prefix is assigned to the Rialto rate center in CA, area code 909. It is part of the Riverside-San Bernardino-Ontario, CA Metropolitan Statistical Area.
Which company owns 909-258 numbers?
METROPCS NETWORKS, 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 909-258 safe to answer?
The prefix itself says nothing about the caller. Legitimate Rialto businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.