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

CHICO prefixes in area code 530

NANPA records 64 assigned NXX blocks to rate center CHICO in area code 530, 8.2% 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. 27 holders hold those blocks, the largest being PACIFIC BELL (16), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (7), NEW CINGULAR WIRELESS PCS, LLC (7). The earliest assignment on record here is 2001-11-29 and the most recent 2023-01-11. 44 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 837, 916, 940 – overlay codes cover the same geography, so a rate center is served by all of them.

64 assigned blocks – 8.2% of 530
27 holders of record
44 of them pooled in 1,000-number lots

Prefixes assigned here

PrefixHolder of recordAssignedPooledIn service
530-228 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – no yes
530-230 Bandwidth BANDWIDTH.COM CLEC, LLC - CA – yes yes
530-267 WAVENATION, LLC – yes yes
530-321 T-Mobile T-MOBILE USA, INC. – yes yes
530-332 AT&T PACIFIC BELL – yes yes
530-342 AT&T PACIFIC BELL – no yes
530-343 AT&T PACIFIC BELL – no yes
530-345 AT&T PACIFIC BELL – no yes
530-354 T-Mobile METROPCS, INC. 2001-11-29 yes yes
530-399 Telnyx TELNYX LLC 2016-12-15 yes yes
530-433 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2011-12-20 yes yes
530-487 AT&T AT&T ENTERPRISES, LLC 2010-09-17 yes yes
530-513 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – yes yes
530-514 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – no yes
530-516 American Messaging AMERICAN MESSAGING SERVICES, LLC – no yes
530-518 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
530-519 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – no yes
530-520 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA – no yes
530-521 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
530-540 IP HORIZON LLC – no yes
530-566 AT&T PACIFIC BELL – yes yes
530-570 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
530-571 UTILITY TELECOM GROUP, LLC - CA – yes yes
530-588 AT&T NEW CINGULAR WIRELESS PCS, LLC 2005-01-03 yes yes
530-591 T-Mobile T-MOBILE USA, INC. 2002-01-29 yes yes
530-592 AT&T NEW CINGULAR WIRELESS PCS, LLC – yes yes
530-624 T-Mobile METROPCS, INC. – yes yes
530-630 COMMIO, LLC 2017-03-24 yes yes
530-636 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2008-04-02 yes yes
530-680 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
530-715 Bandwidth BANDWIDTH.COM CLEC, LLC - CA 2009-04-28 yes yes
530-717 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2009-06-18 yes yes
530-720 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 2010-07-06 yes yes
530-767 Onvoy ONVOY, LLC - CA 2017-04-06 yes yes
530-774 HD CARRIER LLC – yes yes
530-781 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2005-08-17 yes yes
530-800 SKYE TELECOM LLC DBA SKYETEL – yes yes
530-801 AT&T TELEPORT COMMUNICATIONS AMERICA, LLC - CA 2010-09-15 yes yes
530-809 Comcast COMCAST PHONE OF CALIFORNIA, LLC 2006-06-28 yes yes
530-815 Peerless PEERLESS NETWORK OF CALIFORNIA, LLC - CA 2014-10-13 yes yes
530-826 AT&T PACIFIC BELL – yes yes
530-828 T-Mobile T-MOBILE USA, INC. 2002-08-21 yes yes
530-829 Vonage VONAGE AMERICA LLC 2018-03-14 yes yes
530-855 FRACTEL, LLC 2019-12-02 yes yes
530-856 TPx U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 2022-06-01 yes yes
530-857 IP HORIZON LLC 2021-09-21 yes yes
530-864 AT&T NEW CINGULAR WIRELESS PCS, LLC – no yes
530-875 Twilio TWILIO INTERNATIONAL, INC. 2021-11-22 yes yes
530-879 AT&T PACIFIC BELL – no yes
530-891 AT&T PACIFIC BELL – no yes
530-892 AT&T PACIFIC BELL – yes yes
530-893 AT&T PACIFIC BELL – no yes
530-894 AT&T PACIFIC BELL – yes yes
530-895 AT&T PACIFIC BELL – no yes
530-896 AT&T PACIFIC BELL – yes yes
530-897 AT&T PACIFIC BELL – yes yes
530-898 AT&T PACIFIC BELL – no yes
530-899 AT&T PACIFIC BELL – no yes
530-901 Charter ONVOY SPECTRUM, LLC 2021-04-14 yes yes
530-907 NUSO, LLC 2023-01-11 yes yes
530-924 Lumen CENTURYLINK COMMUNICATIONS, LLC – yes yes
530-961 Verizon MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 2003-07-17 yes yes
530-965 T-Mobile METROPCS, INC. – yes yes
530-966 Verizon CELLCO PARTNERSHIP DBA VERIZON WIRELESS - 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 16 25%
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA Verizon 7 10.9%
NEW CINGULAR WIRELESS PCS, LLC AT&T 7 10.9%
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS TPx 4 6.2%
BANDWIDTH.COM CLEC, LLC - CA Bandwidth 3 4.7%
T-MOBILE USA, INC. T-Mobile 3 4.7%
METROPCS, INC. T-Mobile 3 4.7%
IP HORIZON LLC – 2 3.1%
WAVENATION, LLC – 1 1.6%
TELNYX LLC Telnyx 1 1.6%
AT&T ENTERPRISES, LLC AT&T 1 1.6%
AMERICAN MESSAGING SERVICES, LLC American Messaging 1 1.6%
UTILITY TELECOM GROUP, LLC - CA – 1 1.6%
COMMIO, LLC – 1 1.6%
ONVOY, LLC - CA Onvoy 1 1.6%
HD CARRIER LLC – 1 1.6%
SKYE TELECOM LLC DBA SKYETEL – 1 1.6%
TELEPORT COMMUNICATIONS AMERICA, LLC - CA AT&T 1 1.6%
COMCAST PHONE OF CALIFORNIA, LLC Comcast 1 1.6%
PEERLESS NETWORK OF CALIFORNIA, LLC - CA Peerless 1 1.6%
VONAGE AMERICA LLC Vonage 1 1.6%
FRACTEL, LLC – 1 1.6%
TWILIO INTERNATIONAL, INC. Twilio 1 1.6%
ONVOY SPECTRUM, LLC Charter 1 1.6%
NUSO, LLC – 1 1.6%
CENTURYLINK COMMUNICATIONS, LLC Lumen 1 1.6%
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA Verizon 1 1.6%

Frequently asked

Which prefixes belong to CHICO in area code 530?

64 blocks: 228, 230, 267, 321, 332, 342, 343, 345, 354, 399, 433, 487 and 52 more, all listed in the table above.

Which carriers have numbers in CHICO?

PACIFIC BELL (16 blocks), CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA (7 blocks), NEW CINGULAR WIRELESS PCS, LLC (7 blocks), U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS (4 blocks), BANDWIDTH.COM CLEC, LLC - CA (3 blocks), T-MOBILE USA, INC. (3 blocks). These are the holders on record; the carrier actually serving a given number can differ, because numbers move with their owners.

Is CHICO 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