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

CAMBRIA prefixes in area code 805

NANPA records 7 assigned NXX blocks to rate center CAMBRIA in area code 805, 0.9% 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. 6 holders hold those blocks, the largest being PACIFIC BELL (2), BANDWIDTH.COM CLEC, LLC - CA (1), AT&T ENTERPRISES, LLC (1). 7 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 274, 507, 517, 920 – overlay codes cover the same geography, so a rate center is served by all of them.

7 assigned blocks – 0.9% of 805
6 holders of record
7 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
805-203 Bandwidth BANDWIDTH.COM CLEC, LLC - CA – yes yes
805-395 AT&T AT&T ENTERPRISES, LLC – yes yes
805-909 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
805-924 AT&T PACIFIC BELL – yes yes
805-926 Lumen LEVEL 3 COMMUNICATIONS, LLC - CA – yes yes
805-927 AT&T PACIFIC BELL – yes yes
805-935 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - 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
PACIFIC BELL AT&T 2 28.6%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 1 14.3%
AT&T ENTERPRISES, LLC AT&T 1 14.3%
NEW CINGULAR WIRELESS PCS, LLC AT&T 1 14.3%
LEVEL 3 COMMUNICATIONS, LLC - CA Lumen 1 14.3%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 1 14.3%

Frequently asked

Which prefixes belong to CAMBRIA in area code 805?

7 blocks: 203, 395, 909, 924, 926, 927, 935. The table above gives the holder of each.

Which carriers have numbers in CAMBRIA?

PACIFIC BELL (2 blocks), BANDWIDTH.COM CLEC, LLC - CA (1 block), AT&T ENTERPRISES, LLC (1 block), NEW CINGULAR WIRELESS PCS, LLC (1 block), LEVEL 3 COMMUNICATIONS, LLC - CA (1 block), LEVEL 3 TELECOM OF CALIFORNIA, LP - 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 CAMBRIA 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