Prefix 909-327 — San Bernardino, CA

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

Area code
909
Prefix (NXX)
327
Rate center
San Bernardino
State
California
Time zone
Pacific
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2004-12-29
LATA
730

Numbers in the 909-327 prefix are registered to the San Bernardino rate center in CA, inside area code 909. The prefix is the second block of a ten-digit US number (909-327-XXXX) and pins the number to a billing locality.

Code-holder of record: T-MOBILE USA, INC. (OCN 6529), assigned December 29, 2004. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 909-327 numbers may be served by different companies.

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 San Bernardino caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 909-327
PrefixRate centerCode holder
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
909-328 Redlands CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
909-329 Fontana CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
909-330 Etiwanda BANDWIDTH.COM CLEC, LLC - CA

FAQ

Where is 909-327 located?

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

Which company owns 909-327 numbers?

T-MOBILE USA, INC. 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 909-327 safe to answer?

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