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

BUTTE CITY prefixes in area code 530

NANPA records 4 assigned NXX blocks to rate center BUTTE CITY in area code 530, 0.5% 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. 3 holders hold those blocks, the largest being NEW CINGULAR WIRELESS PCS, LLC (2), LEVEL 3 COMMUNICATIONS, LLC - CA (1), PACIFIC BELL (1). The earliest assignment on record here is 2024-11-12 and the most recent 2024-11-12. 4 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots.

4 assigned blocks – 0.5% of 530
3 holders of record
4 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
530-517 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
530-884 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
530-982 AT&T PACIFIC BELL – yes yes
530-987 AT&T NEW CINGULAR WIRELESS PCS, LLC 2024-11-12 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
NEW CINGULAR WIRELESS PCS, LLC AT&T 2 50%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 25%
PACIFIC BELL AT&T 1 25%

Frequently asked

Which prefixes belong to BUTTE CITY in area code 530?

4 blocks: 517, 884, 982, 987. The table above gives the holder of each.

Which carriers have numbers in BUTTE CITY?

NEW CINGULAR WIRELESS PCS, LLC (2 blocks), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), PACIFIC BELL (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is BUTTE CITY 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