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

TEMSCL CNY prefixes in area code 951

NANPA records 14 assigned NXX blocks to rate center TEMSCL CNY in area code 951, 2.0% of the 696 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 (4), T-MOBILE USA, INC. (3), PACIFIC BELL (1). The earliest assignment on record here is 2004-09-10 and the most recent 2023-12-12. 14 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

14 assigned blocks – 2% of 951
9 holders of record
14 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
951-277 AT&T PACIFIC BELL – yes yes
951-338 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA 2012-01-24 yes yes
951-382 Bandwidth BANDWIDTH.COM CLEC, LLC - CA – yes yes
951-433 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2015-02-16 yes yes
951-519 T-Mobile T-MOBILE USA, INC. 2020-02-28 yes yes
951-546 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2020-08-21 yes yes
951-557 T-Mobile T-MOBILE USA, INC. 2020-09-28 yes yes
951-561 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
951-603 IP HORIZON LLC – yes yes
951-638 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 2004-09-10 yes yes
951-646 COMMIO, LLC 2023-08-11 yes yes
951-667 T-Mobile T-MOBILE USA, INC. – yes yes
951-716 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2023-12-12 yes yes
951-855 FRACTEL, LLC 2019-05-13 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 4 28.6%
T-MOBILE USA, INC. T-Mobile 3 21.4%
PACIFIC BELL AT&T 1 7.1%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 7.1%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 1 7.1%
IP HORIZON LLC – 1 7.1%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 7.1%
COMMIO, LLC – 1 7.1%
FRACTEL, LLC – 1 7.1%

Frequently asked

Which prefixes belong to TEMSCL CNY in area code 951?

14 blocks: 277, 338, 382, 433, 519, 546, 557, 561, 603, 638, 646, 667 and 2 more, all listed in the table above.

Which carriers have numbers in TEMSCL CNY?

CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (4 blocks), T-MOBILE USA, INC. (3 blocks), PACIFIC BELL (1 block), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), BANDWIDTH.COM CLEC, LLC - CA (1 block), IP HORIZON LLC (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is TEMSCL CNY 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 951

All 696 prefixes in 951