NumberingData
Verified Nov 1, 2026 · Source: NANPA CO Code Assignment Records

LOS GATOS prefixes in area code 408

NANPA records 24 assigned NXX blocks to rate center LOS GATOS in area code 408, 3.0% of the 787 blocks assigned in the code. A rate center is the billing geography a block is allocated to – NANPA truncates the name to ten characters, so read it as a NANPA label rather than a town. 11 holders hold those blocks, the largest being FRONTIER CALIFORNIA INC. (9), NEW CINGULAR WIRELESS PCS, LLC (4), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (3). The earliest assignment on record here is 2001-04-19 and the most recent 2023-09-11. 17 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area code 669 – overlay codes cover the same geography, so a rate center is served by all of them.

24 assigned blocks – 3% of 408
11 holders of record
17 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
408-317 Onvoy ONVOY, LLC - CA – yes yes
408-335 Frontier FRONTIER CALIFORNIA INC. – yes yes
408-348 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
408-353 Frontier FRONTIER CALIFORNIA INC. – yes yes
408-354 Frontier FRONTIER CALIFORNIA INC. – no yes
408-355 AT&T PACIFIC BELL (COMPETITIVE) – yes yes
408-356 Frontier FRONTIER CALIFORNIA INC. – no yes
408-357 Frontier FRONTIER CALIFORNIA INC. – yes yes
408-358 Frontier FRONTIER CALIFORNIA INC. – no yes
408-384 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
408-395 Frontier FRONTIER CALIFORNIA INC. – no yes
408-399 Frontier FRONTIER CALIFORNIA INC. – no yes
408-402 Frontier FRONTIER CALIFORNIA INC. – yes yes
408-438 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2001-04-19 yes yes
408-442 Peerless PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2013-03-08 yes yes
408-455 T-Mobile T-MOBILE USA, INC. 2002-01-29 yes yes
408-458 AT&T NEW CINGULAR WIRELESS PCS, LLC 2002-01-29 yes yes
408-502 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2011-08-24 yes yes
408-560 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2012-02-16 yes yes
408-596 AT&T NEW CINGULAR WIRELESS PCS, LLC 2001-11-28 yes yes
408-656 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
408-698 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2023-09-11 yes yes
408-827 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA – yes yes
408-884 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes

The holder is who received the block from the numbering administrator. It is not necessarily the carrier serving a given number: numbers move with their owners, and a pooled block is shared.

Who holds the blocks

HolderBrandBlocksShare here
FRONTIER CALIFORNIA INC. Frontier 9 37.5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 4 16.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 3 12.5%
ONVOY, LLC - CA Onvoy 1 4.2%
PACIFIC BELL (COMPETITIVE) AT&T 1 4.2%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 4.2%
PEERLESS NETWORK OF CALIFORNIA, LLC - CA Peerless 1 4.2%
T-MOBILE USA, INC. T-Mobile 1 4.2%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 1 4.2%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 4.2%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 4.2%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to LOS GATOS in area code 408?

24 blocks: 317, 335, 348, 353, 354, 355, 356, 357, 358, 384, 395, 399 and 12 more, all listed in the table above.

Which carriers have numbers in LOS GATOS?

FRONTIER CALIFORNIA INC. (9 blocks), NEW CINGULAR WIRELESS PCS, LLC (4 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (3 blocks), ONVOY, LLC - CA (1 block), PACIFIC BELL (COMPETITIVE) (1 block), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is LOS GATOS a city?

It is a rate center – the unit NANPA allocates number blocks to. Its name is abbreviated to ten characters and is not necessarily a settlement: we print it as recorded rather than guess at the full name.

Other rate centers in 408

All 787 prefixes in 408