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

BANNING prefixes in area code 951

NANPA records 18 assigned NXX blocks to rate center BANNING in area code 951, 2.6% 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. 10 holders hold those blocks, the largest being ONVOY, LLC - CA (5), FRONTIER CALIFORNIA INC. (4), TWC IP ENABLED SERVICES, LLC (2). The earliest assignment on record here is 2009-02-21 and the most recent 2023-10-16. 16 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

18 assigned blocks – 2.6% of 951
10 holders of record
16 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
951-267 Onvoy ONVOY, LLC - CA 2009-02-21 yes yes
951-381 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2013-12-24 yes yes
951-402 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
951-499 Onvoy ONVOY, LLC - CA 2019-05-20 yes yes
951-524 Charter TWC IP ENABLED SERVICES, LLC 2017-02-27 yes yes
951-572 AT&T PACIFIC BELL (COMPETITIVE) – yes yes
951-612 Onvoy ONVOY, LLC - CA 2022-07-13 yes yes
951-644 FRACTEL, LLC 2020-07-02 yes yes
951-755 AT&T AT&T - LOCAL – yes yes
951-761 Onvoy ONVOY, LLC - CA 2023-10-16 yes yes
951-769 Frontier FRONTIER CALIFORNIA INC. – yes yes
951-797 Charter TWC IP ENABLED SERVICES, LLC – yes yes
951-845 Frontier FRONTIER CALIFORNIA INC. – no yes
951-846 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
951-849 Frontier FRONTIER CALIFORNIA INC. – no yes
951-875 Onvoy ONVOY, LLC - CA 2021-11-04 yes yes
951-922 Frontier FRONTIER CALIFORNIA INC. – yes yes
951-952 Charter ONVOY SPECTRUM, LLC 2023-04-12 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
ONVOY, LLC - CA Onvoy 5 27.8%
FRONTIER CALIFORNIA INC. Frontier 4 22.2%
TWC IP ENABLED SERVICES, LLC Charter 2 11.1%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 1 5.6%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 5.6%
PACIFIC BELL (COMPETITIVE) AT&T 1 5.6%
FRACTEL, LLC – 1 5.6%
AT&T - LOCAL AT&T 1 5.6%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 5.6%
ONVOY SPECTRUM, LLC Charter 1 5.6%

Frequently asked

Which prefixes belong to BANNING in area code 951?

18 blocks: 267, 381, 402, 499, 524, 572, 612, 644, 755, 761, 769, 797 and 6 more, all listed in the table above.

Which carriers have numbers in BANNING?

ONVOY, LLC - CA (5 blocks), FRONTIER CALIFORNIA INC. (4 blocks), TWC IP ENABLED SERVICES, LLC (2 blocks), BANDWIDTH.COM CLEC, LLC - CA (1 block), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), PACIFIC BELL (COMPETITIVE) (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BANNING 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