Prefix 408-396 — San Jose:west Da, CA

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

Area code
408
Prefix (NXX)
396
Rate center
San Jose:west Da
State
California
Time zone
Pacific
Code holder
T-MOBILE USA, INC.
OCN
6529
Pooled
Yes (thousands-block pooling)
Assigned
2001-04-25
LATA
722

Numbers in the 408-396 prefix are registered to the San Jose:west Da rate center in CA, inside area code 408. The prefix is the second block of a ten-digit US number (408-396-XXXX) and pins the number to a billing locality.

Code-holder of record: T-MOBILE USA, INC. (OCN 6529), assigned April 25, 2001. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 408-396 numbers may be served by different companies.

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.

Spoofing means this prefix on your screen doesn't guarantee a San Jose:west Da caller. Verify independently before trusting a request for money or data.

Neighboring prefixes

Prefixes adjacent to 408-396
PrefixRate centerCode holder
408-393 Sunnyvale T-MOBILE USA, INC.
408-394 Sunnyvale T-MOBILE USA, INC.
408-395 Los Gatos FRONTIER CALIFORNIA INC.
408-397 San Jose:west Da SPOK, INC.
408-398 San Jose:west Da NEW CINGULAR WIRELESS PCS, LLC
408-399 Los Gatos FRONTIER CALIFORNIA INC.

FAQ

Where is 408-396 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 408-396 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 408-396 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.