Prefix 408-310 — Morgan Hill, CA
- Area code
- 408
- Prefix (NXX)
- 310
- Rate center
- Morgan Hill
- State
- California
- Time zone
- Pacific
- Code holder
- T-MOBILE USA, INC.
- OCN
- 6529
- Pooled
- Yes (thousands-block pooling)
- Assigned
- 2001-12-26
- LATA
- 722
408-310 identifies a block of numbers in Morgan Hill, CA, within the 408 area code. Every US prefix is tied to exactly one rate center; this one is Morgan Hill.
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 — 408-310 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.
The assigned code holder is T-MOBILE USA, INC., operating company number 6529, assigned December 26, 2001. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 408-307 | San Jose:west Da | NEW CINGULAR WIRELESS PCS, LLC |
| 408-308 | San Jose:west Da | SPOK, INC. |
| 408-309 | San Jose:west Da | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 408-312 | San Martin | BOOST SUBSCRIBERCO L.L.C. |
| 408-313 | San Jose:west Da | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
| 408-314 | San Jose:west Da | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA |
FAQ
Where is 408-310 located?
The prefix is assigned to the Morgan Hill rate center in CA, area code 408. It is part of the San Jose-Sunnyvale-Santa Clara, CA Metropolitan Statistical Area.
Which company owns 408-310 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 408-310 safe to answer?
The prefix itself says nothing about the caller. Legitimate Morgan Hill businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.