California Area Codes

Reference Data

State Directory

Data last updated: June 25, 2026

Area Codes

Exchanges

32,136

Carriers

114

Rate Centers

739

Area Codes in California

NPA	Major Cities	Status	Exchanges	Overlay
209	Stockton, Modesto, Fresno	Active	784	Yes
213	Los Angeles, Torrance, Commerce	Active	786	Yes
279	Sacramento, West Sacramento, Roseville	Active	786	Yes
310	Los Angeles, Torrance, Bloomington	Active	786	Yes
323	Los Angeles, Torrance, Bloomington	Active	786	Yes
341	San Jose, San Francisco, Oakland	Active	785	Yes
350	Stockton, Fresno, Manteca	Active	786	Yes
357	California	Active	786	Yes
369	Concord, Oakland, San Francisco	Active	786	Yes
408	San Jose, San Francisco, Santa Clara	Active	787	Yes
415	San Francisco, Hayward, Oakland	Active	785	Yes
424	Los Angeles, Torrance, Bloomington	Active	785	Yes
442	San Diego, Palm Springs, Los Angeles	Active	753	Yes
510	Oakland, San Francisco, Hayward	Active	785	Yes
530	Chico, Sacramento, West Sacramento	Active	782	Yes
559	Fresno, Visalia, Clovis	Active	785	Yes
562	Torrance, Long Beach, Los Angeles	Active	785	Yes
619	San Diego, Escondido, Chula Vista	Active	786	Yes
626	Los Angeles, Torrance, Commerce	Active	786	No
628	San Francisco, San Jose, Oakland	Active	785	Yes
650	San Francisco, Hayward, Oakland	Active	785	Yes
657	Bloomington, Los Angeles, Torrance	Active	786	Yes
661	Bakersfield, Los Angeles, Torrance	Active	770	No
669	San Francisco, San Jose, Oakland	Active	785	Yes
707	San Francisco, Hayward, Oakland	Active	785	Yes
714	Torrance, Anaheim, Bloomington	Active	786	Yes
738	Ontario	Active	786	Yes
747	Los Angeles, Torrance, Commerce	Active	785	Yes
760	San Diego, Palm Springs, Escondido	Active	785	Yes
805	San Luis Obispo, Los Angeles, Santa Barbara	Active	786	Yes
818	Los Angeles, Torrance, Bloomington	Active	787	Yes
820	Los Angeles, San Luis Obispo, Santa Barbara	Active	786	Yes
831	Salinas, Monterey, San Francisco	Active	764	No
837	California	Active	786	Yes
840	Los Angeles, Riverside, Bloomington	Active	786	Yes
858	San Diego, Escondido, Rancho Bernardo	Active	785	Yes
909	Riverside, Los Angeles, Bloomington	Active	786	Yes
916	Sacramento, West Sacramento, Roseville	Active	785	Yes
925	Oakland, San Francisco, Hayward	Active	785	No
949	Los Angeles, Anaheim, Irvine	Active	786	No
951	Riverside, Los Angeles, Bloomington	Active	786	No

Top Carriers in California

Carrier	OCN	NXX Count
PACIFIC BELL	9740	4893
NEW CINGULAR WIRELESS PCS, LLC	6010	2167
T-MOBILE USA, INC.	6529	2077
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA	6006	1987
ONVOY, LLC - CA	649C	1427
FRONTIER CALIFORNIA INC.	2319	931
LEVEL 3 COMMUNICATIONS, LLC - CA	8826	929
BANDWIDTH.COM CLEC, LLC - CA	981E	812
U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS	671J	613
FRACTEL, LLC	965H	597