Prefix 408-418 — San Jose:west Da, CA

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

Area code
408
Prefix (NXX)
418
Rate center
San Jose:west Da
State
California
Time zone
Pacific
Code holder
PEERLESS NETWORK OF CALIFORNIA, LLC - CA
OCN
373F
Pooled
Yes (thousands-block pooling)
Assigned
2008-12-18
LATA
722

The 408-418 prefix belongs to area code 408 and is anchored to the San Jose:west Da rate center (CA). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.

San Jose:west Da is part of the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area. For routing purposes it sits in LATA 722. Numbers here keep Pacific time.

Code-holder of record: PEERLESS NETWORK OF CALIFORNIA, LLC - CA (OCN 373F), assigned December 18, 2008. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 408-418 numbers may be served by different companies.

Caller ID showing 408-418 is not proof the call came from San Jose:west Da: 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

Prefixes adjacent to 408-418
PrefixRate centerCode holder
408-415 Morgan Hill CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
408-416 San Jose:north Da MCIMETRO ACCESS TRANSMISSION SERVICES LLC
408-417 San Jose:west Da NEW CINGULAR WIRELESS PCS, LLC
408-419 Sunnyvale PACIFIC BELL
408-420 Sunnyvale T-MOBILE USA, INC.
408-421 San Jose:north Da NEW CINGULAR WIRELESS PCS, LLC

FAQ

Where is 408-418 located?

The prefix is assigned to the San Jose:west Da rate center in CA, area code 408. It is part of the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area.

Which company owns 408-418 numbers?

PEERLESS NETWORK OF CALIFORNIA, 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 408-418 safe to answer?

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