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

BEN LOMOND prefixes in area code 831

NANPA records 11 assigned NXX blocks to rate center BEN LOMOND in area code 831, 2.7% of the 406 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. 7 holders hold those blocks, the largest being ONVOY, LLC - CA (3), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (2), LEVEL 3 COMMUNICATIONS, LLC - CA (2). The earliest assignment on record here is 2022-09-20 and the most recent 2022-09-20. 9 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

11 assigned blocks – 2.7% of 831
7 holders of record
9 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
831-218 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA – yes yes
831-246 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
831-252 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
831-278 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
831-289 Comcast COMCAST PHONE OF CALIFORNIA, LLC 2022-09-20 yes yes
831-336 AT&T PACIFIC BELL – yes yes
831-401 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
831-532 Onvoy ONVOY, LLC - CA – yes yes
831-604 Onvoy ONVOY, LLC - CA – no yes
831-609 Onvoy ONVOY, LLC - CA – yes yes
831-709 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
ONVOY, LLC - CA Onvoy 3 27.3%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 2 18.2%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 2 18.2%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 9.1%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 9.1%
COMCAST PHONE OF CALIFORNIA, LLC Comcast 1 9.1%
PACIFIC BELL AT&T 1 9.1%

Frequently asked

Which prefixes belong to BEN LOMOND in area code 831?

11 blocks: 218, 246, 252, 278, 289, 336, 401, 532, 604, 609, 709. The table above gives the holder of each.

Which carriers have numbers in BEN LOMOND?

ONVOY, LLC - CA (3 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (2 blocks), TELEPORT COMMUNICATIONS AMERICA, LLC - CA (1 block), NEW CINGULAR WIRELESS PCS, LLC (1 block), COMCAST PHONE OF CALIFORNIA, 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 BEN LOMOND 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 831

All 406 prefixes in 831