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

SUSANVILLE prefixes in area code 530

NANPA records 8 assigned NXX blocks to rate center SUSANVILLE in area code 530, 1.0% of the 782 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. 5 holders hold those blocks, the largest being CITIZENS TELECOM CA. DBA FRONTIER COM OF CA (3), UNITED STATES CELLULAR - CA (2), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (1). The earliest assignment on record here is 2001-07-16 and the most recent 2001-07-16. 7 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

8 assigned blocks – 1% of 530
5 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
530-249 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
530-250 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
530-251 Frontier CITIZENS TELECOM CA. DBA FRONTIER COM OF CA – yes yes
530-252 Frontier CITIZENS TELECOM CA. DBA FRONTIER COM OF CA – yes yes
530-257 Frontier CITIZENS TELECOM CA. DBA FRONTIER COM OF CA – no yes
530-260 UNITED STATES CELLULAR - CA – yes yes
530-310 AT&T NEW CINGULAR WIRELESS PCS, LLC 2001-07-16 yes yes
530-931 UNITED STATES CELLULAR - 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
CITIZENS TELECOM CA. DBA FRONTIER COM OF CA Frontier 3 37.5%
UNITED STATES CELLULAR - CA – 2 25%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 1 12.5%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 12.5%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 12.5%

Frequently asked

Which prefixes belong to SUSANVILLE in area code 530?

8 blocks: 249, 250, 251, 252, 257, 260, 310, 931. The table above gives the holder of each.

Which carriers have numbers in SUSANVILLE?

CITIZENS TELECOM CA. DBA FRONTIER COM OF CA (3 blocks), UNITED STATES CELLULAR - CA (2 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (1 block), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), NEW CINGULAR WIRELESS PCS, 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 SUSANVILLE 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 530

All 782 prefixes in 530