Prefix 408-417 — San Jose:west Da, CA

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

Area code
408
Prefix (NXX)
417
Rate center
San Jose:west Da
State
California
Time zone
Pacific
Code holder
NEW CINGULAR WIRELESS PCS, LLC
OCN
6010
Pooled
Yes (thousands-block pooling)
Assigned
2002-02-22
LATA
722

408-417 identifies a block of numbers in San Jose:west Da, CA, within the 408 area code. Every US prefix is tied to exactly one rate center; this one is San Jose:west Da.

The rate center lies in the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area. The serving LATA is 722. Local time follows the Pacific zone.

Treat the on-screen number as a hint, not evidence — 408-417 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.

Code-holder of record: NEW CINGULAR WIRELESS PCS, LLC (OCN 6010), assigned February 22, 2002. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 408-417 numbers may be served by different companies.

Neighboring prefixes

Prefixes adjacent to 408-417
PrefixRate centerCode holder
408-414 San Jose:south Da MCIMETRO ACCESS TRANSMISSION SERVICES LLC
408-415 Morgan Hill CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA
408-416 San Jose:north Da MCIMETRO ACCESS TRANSMISSION SERVICES LLC
408-418 San Jose:west Da PEERLESS NETWORK OF CALIFORNIA, LLC - CA
408-419 Sunnyvale PACIFIC BELL
408-420 Sunnyvale T-MOBILE USA, INC.

FAQ

Where is 408-417 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 408-417 numbers?

NEW CINGULAR WIRELESS PCS, 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 408-417 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.