Prefix 909-235 — Ontario, CA

NANPA CO code assignment, current as of July 28, 2026.

Area code
909
Prefix (NXX)
235
Rate center
Ontario
State
California
Time zone
Pacific
Code holder
METROPCS NETWORKS, LLC
OCN
899D
Pooled
Yes (thousands-block pooling)
Assigned
2007-03-21
LATA
730

Numbers in the 909-235 prefix are registered to the Ontario rate center in CA, inside area code 909. The prefix is the second block of a ten-digit US number (909-235-XXXX) and pins the number to a billing locality.

NANPA's central-office code records list METROPCS NETWORKS, LLC (OCN 899D) as the code holder, assigned March 21, 2007. Because 909-235 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

The rate center lies in the Riverside-San Bernardino-Ontario, 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 Ontario caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 909-235
PrefixRate centerCode holder
909-232 Fontana METROPCS NETWORKS, LLC
909-233 Rialto METROPCS NETWORKS, LLC
909-234 Ontario NEW CINGULAR WIRELESS PCS, LLC
909-236 Pomona METROPCS NETWORKS, LLC
909-237 Rialto CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
909-238 Ontario CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA

FAQ

Where is 909-235 located?

The prefix is assigned to the Ontario rate center in CA, area code 909. It is part of the Riverside-San Bernardino-Ontario, CA Metropolitan Statistical Area.

Which company owns 909-235 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 909-235 safe to answer?

The prefix itself says nothing about the caller. Legitimate Ontario businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.