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

MORGANHILL prefixes in area code 408

NANPA records 19 assigned NXX blocks to rate center MORGANHILL in area code 408, 2.4% 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. 9 holders hold those blocks, the largest being CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (6), FRONTIER CALIFORNIA INC. (4), T-MOBILE USA, INC. (2). The earliest assignment on record here is 2001-03-22 and the most recent 2024-12-17. 14 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.

19 assigned blocks – 2.4% of 408
9 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
408-201 AT&T PACIFIC BELL (COMPETITIVE) – yes yes
408-208 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2024-12-17 yes yes
408-310 T-Mobile T-MOBILE USA, INC. 2001-12-26 yes yes
408-415 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2023-08-24 yes yes
408-465 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
408-500 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
408-607 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
408-612 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS – yes yes
408-659 T-Mobile T-MOBILE USA, INC. 2010-03-30 yes yes
408-706 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2008-01-14 yes yes
408-710 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2001-03-22 no yes
408-722 AT&T NEW CINGULAR WIRELESS PCS, LLC 2006-06-30 yes yes
408-762 Onvoy ONVOY, LLC - CA – yes yes
408-763 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
408-776 Frontier FRONTIER CALIFORNIA INC. – no yes
408-778 Frontier FRONTIER CALIFORNIA INC. – no yes
408-779 Frontier FRONTIER CALIFORNIA INC. – no yes
408-782 Frontier FRONTIER CALIFORNIA INC. – yes yes
408-825 AT&T TELEPORT COMMUNICATIONS AMERICA, 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
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 6 31.6%
FRONTIER CALIFORNIA INC. Frontier 4 21.1%
T-MOBILE USA, INC. T-Mobile 2 10.5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 2 10.5%
PACIFIC BELL (COMPETITIVE) AT&T 1 5.3%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 5.3%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 1 5.3%
ONVOY, LLC - CA Onvoy 1 5.3%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 5.3%

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 MORGANHILL in area code 408?

19 blocks: 201, 208, 310, 415, 465, 500, 607, 612, 659, 706, 710, 722 and 7 more, all listed in the table above.

Which carriers have numbers in MORGANHILL?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (6 blocks), FRONTIER CALIFORNIA INC. (4 blocks), T-MOBILE USA, INC. (2 blocks), NEW CINGULAR WIRELESS PCS, LLC (2 blocks), PACIFIC BELL (COMPETITIVE) (1 block), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is MORGANHILL 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