California

Area code 820

Area code 820 covers Camarillo, Atascadero, Oxnard, Santa Barbara, Santa Maria and more in California, in the Pacific time zone. It has been in service since 2018. It shares its area with 805 (an overlay).

WhereCalifornia

Time zonePacific

Exchanges98

Flagged numbers13 complaints

Most reported 820 numbers

(820) 336-4001CautionTelemarketer / sales3 complaints

Carriers in 820

Fractel32 38%
AT&T Mobility18 21%
Onvoy (Sinch)14 17%
T-Mobile8 10%
Verizon Wireless5 6%
Commio3 4%
Boost Subscriberco2 2%
Twilio2 2%

Line types

VoIP / internet phone55 56%
Wireless (cell phone)32 33%
Landline11 11%

Counted over the exchanges, from the carrier each was assigned to.

Cities in area code 820

CamarilloAtascaderoOxnardSanta BarbaraSanta MariaArroyo GrandeEl CerritoGuadalupe

Every 820 exchange

The first six digits of a number. Each one with 3 or more flagged numbers has its own page: who it was assigned to and the numbers in it.

Exchange	City	Carrier	Type	Flagged
820-200	Thousand Oaks	Advanced Telecom Solutions	Landline	0
820-201	Oxnard	Shelcomm	Landline	0
820-202	San Luis Obispo	Csc Wireless	Wireless	0
820-203	Atascadero	T-Mobile	Wireless	0
820-204	Camarillo	AT&T Mobility	Wireless	0
820-205		AT&T Mobility	Wireless	0
820-206		T-Mobile	Wireless	0
820-207	Camarillo	AT&T Mobility	Wireless	0
820-208	Atascadero	Tpx Communications	Landline	0
820-209	Gaviota	Bandwidth	VoIP	0
820-210	Camarillo	AT&T Mobility	Wireless	0
820-212	Vntra East	AT&T Mobility	Wireless	0
820-213	Camarillo	AT&T Mobility	Wireless	0
820-214		AT&T Mobility	Wireless	0
820-215		AT&T Mobility	Wireless	0
820-216	Arroyo Grande	Boost Subscriberco	Landline	0
820-217	Atascadero	Boost Subscriberco	Landline	0
820-218	Lompoc	AT&T Mobility	Wireless	0
820-219	Conejo	Commio	VoIP	0
820-220	Piru	Commio	VoIP	0
820-221	Santa Maria	AT&T Mobility	Wireless	0
820-222	Camarillo	Fractel	VoIP	0
820-223	Santa Barbara	Verizon Wireless	Wireless	0
820-224	Nipomo	Commio	VoIP	0
820-225	Guadalupe	T-Mobile	Wireless	0
820-226	El Cerrito	Onvoy (Sinch)	VoIP	0
820-227	Santa Maria	Verizon Wireless	Wireless	0
820-228	Lompoc	Twilio	VoIP	0
820-229	Santa Barbara	AT&T Mobility	Wireless	0
820-230		AT&T Mobility	Wireless	0
820-231	Camarillo	Verizon Wireless	Wireless	0
820-232		Verizon Wireless	Wireless	0
820-233	San Luis Obispo	Leap Telecom	Landline	0
820-234	Oxnard	Fractel	VoIP	0
820-235	Vntra Cntl	T-Mobile	Wireless	0
820-236	Santa Barbara	Nuso	Landline	0
820-237	Atascadero	T-Mobile	Wireless	0
820-238	Camarillo	AT&T Mobility	Wireless	0
820-239		AT&T Mobility	Wireless	0
820-240	Santa Barbara	Wavenation	Landline	0
820-241	Atascadero	T-Mobile	Wireless	0
820-242	El Cerrito	Onvoy (Sinch)	VoIP	0
820-243	Camarillo	Onvoy (Sinch)	VoIP	0
820-244	Santa Maria	Onvoy (Sinch)	VoIP	0
820-245	Santa Paula	AT&T Mobility	Wireless	0
820-246	Atascadero	T-Mobile	Wireless	0
820-247		Onvoy (Sinch)	VoIP	0
820-248	Santa Maria	Onvoy (Sinch)	VoIP	0
820-249	Vntra Cntl	T-Mobile	Wireless	0
820-250	Ojai	AT&T Mobility	Wireless	0
820-251		Onvoy (Sinch)	VoIP	0
820-252	Arroyo Grande	Onvoy (Sinch)	VoIP	0
820-253	Camarillo	AT&T Mobility	Wireless	0
820-254		AT&T Mobility	Wireless	0
820-255		Verizon Wireless	Wireless	0
820-280	Los Alamitos	Hd Carrier	Landline	0
820-288	Vntra East	Fractel	VoIP	0
820-299	Camarillo	Fractel	VoIP	0
820-300	Guadalupe	Onvoy (Sinch)	VoIP	0
820-333	Thousand Oaks	Fractel	VoIP	0
820-336	Guadalupe	Fractel	VoIP	1
820-345	El Cerrito	Fractel	VoIP	0
820-346	Arroyo Grande	Fractel	VoIP	0
820-348	Oxnard	Fractel	VoIP	0
820-356	Point Arena	Fractel	VoIP	0
820-380	Pismo Beach	Onvoy (Sinch)	VoIP	0
820-386	Simi Valley	Fractel	VoIP	0
820-400	Parkfield	Twilio	VoIP	0
820-426	Camarillo	Ton80 Communications	VoIP	0
820-432		Fractel	VoIP	0
820-444		Fractel	VoIP	0
820-465	Oxnard	Fractel	VoIP	0
820-500	Gaviota	Fractel	VoIP	0
820-502	Simi Valley	Onvoy (Sinch)	VoIP	0
820-529	Piru	Fractel	VoIP	0
820-587	Santa Barbara	Fractel	VoIP	0
820-600	Pismo Beach	Fractel	VoIP	0
820-666	San Luis Obispo	Fractel	VoIP	0
820-667	Oxnard	Fractel	VoIP	0
820-732	Vntra Cntl	Fractel	VoIP	0
820-758	Santa Barbara	Fractel	VoIP	0
820-777	Santa Paula	Fractel	VoIP	0
820-786	Atascadero	Fractel	VoIP	0
820-799	Camarillo	Fractel	VoIP	0
820-800	Cayucos	Fractel	VoIP	0
820-820	Santa Barbara	Opentact	Landline	0
820-822	Oxnard	Fractel	VoIP	0
820-823	Santa Ana	Onvoy (Sinch)	VoIP	0
820-837	Oxnard	Ton80 Communications	VoIP	0
820-842	Oakview	Fractel	VoIP	0
820-850	Fillmore	Onvoy (Sinch)	VoIP	0
820-880	Santa Barbara	8X8	VoIP	0
820-888	Simi Valley	Terra Nova Telecom	Landline	0
820-899	Santa Maria	Fractel	VoIP	0
820-900	Bradley	Fractel	VoIP	0
820-946	Santa Maria	Fractel	VoIP	0
820-998	Atascadero	Onvoy (Sinch)	VoIP	0
820-999	Oxnard	Fractel	VoIP	0

Area code 820 questions

Where is area code 820?

Area code 820 is in California. Its biggest rate centers are Camarillo, Atascadero, Oxnard, Santa Barbara, Santa Maria.

What time zone is area code 820?

Area code 820 is in the Pacific time zone.

Is a call from area code 820 a scam?

An area code alone can't tell you. Scammers use and spoof numbers in every area code. 1 820 number has been flagged on ShadyCall. Look up the full number to see its reports and FTC/FCC complaints.

What carriers use area code 820?

Of its 98 exchanges, the most were assigned to Fractel, AT&T Mobility, Onvoy (Sinch). Numbers can be ported to any carrier, so the exchange shows the original carrier only.

What area codes overlay 820?

820 shares its area with 805. In an overlay, new numbers get the newer codes and you dial all ten digits.