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

FILLMORE prefixes in area code 805

NANPA records 8 assigned NXX blocks to rate center FILLMORE in area code 805, 1.0% of the 786 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 NEW CINGULAR WIRELESS PCS, LLC (3), BANDWIDTH.COM CLEC, LLC - CA (2), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (1). The earliest assignment on record here is 2002-07-17 and the most recent 2016-06-17. 6 of them are in thousands-block pooling, so those prefixes are shared between carriers in 1,000-number lots. The same rate center name also appears in area codes 217, 435, 447, 585 – overlay codes cover the same geography, so a rate center is served by all of them.

8 assigned blocks – 1% of 805
5 holders of record
6 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
805-265 Bandwidth BANDWIDTH.COM CLEC, LLC - CA – yes yes
805-514 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2016-06-17 yes yes
805-516 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
805-524 AT&T PACIFIC BELL – no yes
805-625 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
805-727 AT&T NEW CINGULAR WIRELESS PCS, LLC 2002-07-17 yes yes
805-774 AT&T NEW CINGULAR WIRELESS PCS, LLC 2014-08-28 yes yes
805-851 NORTH COUNTY COMMUNICATION CORPORATION - CA – no 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 3 37.5%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 2 25%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 12.5%
PACIFIC BELL AT&T 1 12.5%
NORTH COUNTY COMMUNICATION CORPORATION - CA – 1 12.5%

Same rate center in other codes

Overlay codes cover the same geography, so one rate center is served by all of them.

Frequently asked

Which prefixes belong to FILLMORE in area code 805?

8 blocks: 265, 514, 516, 524, 625, 727, 774, 851. The table above gives the holder of each.

Which carriers have numbers in FILLMORE?

NEW CINGULAR WIRELESS PCS, LLC (3 blocks), BANDWIDTH.COM CLEC, LLC - CA (2 blocks), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (1 block), PACIFIC BELL (1 block), NORTH COUNTY COMMUNICATION CORPORATION - CA (1 block). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is FILLMORE 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 805

All 786 prefixes in 805