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

PASOROBLES prefixes in area code 805

NANPA records 30 assigned NXX blocks to rate center PASOROBLES in area code 805, 3.8% 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. 10 holders hold those blocks, the largest being PACIFIC BELL (8), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (5), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (3). The earliest assignment on record here is 2001-03-01 and the most recent 2022-05-26. 23 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 code 820 – overlay codes cover the same geography, so a rate center is served by all of them.

30 assigned blocks – 3.8% of 805
10 holders of record
23 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
805-213 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
805-221 Onvoy ONVOY, LLC - CA – yes yes
805-226 AT&T PACIFIC BELL – yes yes
805-227 AT&T PACIFIC BELL – yes yes
805-237 AT&T PACIFIC BELL – yes yes
805-238 AT&T PACIFIC BELL – no yes
805-239 AT&T PACIFIC BELL – no yes
805-257 Onvoy ONVOY, LLC - CA 2016-02-04 yes yes
805-286 AT&T AT&T - LOCAL 2004-03-11 yes yes
805-296 T-Mobile T-MOBILE USA, INC. 2002-02-21 yes yes
805-326 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 2009-10-22 yes yes
805-333 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
805-355 AT&T PACIFIC BELL – no yes
805-369 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2001-05-18 yes yes
805-400 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
805-423 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2001-09-21 yes yes
805-434 AT&T PACIFIC BELL – yes yes
805-536 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2014-09-15 yes yes
805-591 Lumen LEVEL 3 TELECOM OF CALIFORNIA, LP - CA – yes yes
805-610 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – no yes
805-635 T-Mobile T-MOBILE USA, INC. 2015-05-04 yes yes
805-674 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
805-712 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
805-721 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2019-10-18 yes yes
805-769 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2005-09-07 yes yes
805-835 AT&T PACIFIC BELL 2001-03-01 yes yes
805-872 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2022-05-26 yes yes
805-942 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2015-01-05 yes yes
805-943 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2015-01-05 yes yes
805-975 AT&T NEW CINGULAR WIRELESS PCS, LLC – 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 8 26.7%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 5 16.7%
LEVEL 3 TELECOM OF CALIFORNIA, LP - CA Lumen 3 10%
NEW CINGULAR WIRELESS PCS, LLC AT&T 3 10%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC Verizon 3 10%
ONVOY, LLC - CA Onvoy 2 6.7%
T-MOBILE USA, INC. T-Mobile 2 6.7%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 2 6.7%
AMERICAN MESSAGING SERVICES, LLC American Messaging 1 3.3%
AT&T - LOCAL AT&T 1 3.3%

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 PASOROBLES in area code 805?

30 blocks: 213, 221, 226, 227, 237, 238, 239, 257, 286, 296, 326, 333 and 18 more, all listed in the table above.

Which carriers have numbers in PASOROBLES?

PACIFIC BELL (8 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (5 blocks), LEVEL 3 TELECOM OF CALIFORNIA, LP - CA (3 blocks), NEW CINGULAR WIRELESS PCS, LLC (3 blocks), MCIMETRO ACCESS TRANSMISSION SERVICES LLC (3 blocks), ONVOY, LLC - CA (2 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is PASOROBLES 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