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What area code is 820? The area code 820 is in California and it serves Oxnard, Simi Valley, Thousand Oaks, San Buenaventura (Ventura), Santa Maria, Santa Barbara, Samarillo, and some other surrounding cities. The area code 820 was created from area code 805 on June 1, 2018, and was first put to use on June 1, 2018. It has an overlay with area code 805.

The top counties that are being served by the 820 area code are Monterey County, San Luis Obispo County, Santa Barbara County, and Ventura County.

 

The major cities under each of these counties that are being served by the 820 area code are listed below:

Monterey County

The cities within Monterey County that are served by the 820 area code include Bradley and San Miguel.

San Luis Obispo County

The cities within San Luis Obispo County that are served by the 820 area code include Arroyo Grande, Atascadero, Avila Beach, Cambria, Cayucos, Creston, Grover Beach, Harmony, Los Osos, Morro Bay, Nipomo, Oceano, Paso Robles, Pismo Beach, San Luis Obispo, San Simeon, Santa Margarita, Shandon, and Templeton.

Santa Barbara County

The cities within Santa Barbara County that are served by the 820 area code include Buellton, Carpinteria, Casmalia, Goleta, Guadalupe, Lompoc, Los Alamos, Los Olivos, Santa Barbara, Santa Maria, Santa Ynez, Solvang, and Summerland.

Ventura County

The cities within Ventura County that are served by the 820 area code include Brandeis, Camarillo, Fillmore, Moorpark, Newbury Park, Oak View, Ojai, Oxnard, Piru, Point Mugu Nawc, Port Hueneme, Port Hueneme Cbc Base, Santa Paula, Santa Paula, Simi Valley, Somis, Thousand Oaks, Ventura, and Westlake Village.

 

820 Area Code Time Zone

What time zone is 820 Area Code? The time zone in the 820 area code is the Pacific time zone which is abbreviated as PST. That is America/Los Angeles time zone. The pacific standard time is UTC/GMT -8:00 hours while the pacific daylight saving time is +1:00 hour.

 

Significance of 820 Area Code

I don’t know if you notice that there is a three-digit number that precedes a telephone number any time you receive a call from your cell phone. Any time you see the three-digit code 820, it suggests that the call comes from any of the cities or counties listed above. However, there may be an exemption to this. With the use of mobile phone or roaming phone feature, the caller may not necessarily be at any of these cities or counties at the time of calling.

Nevertheless, knowing the counties and cities that the 820 area code covers can guide you when to call a particular person. This is because the person you want to call may be in a time zone that is different from your own.

 

Telephone Carriers in 820 Area Code

If you want to get a wireless telephone within the 820 area code, the popular wireless telephone carriers that serve area code 805 include Sprint, Verizon Wireless, Cingular Wireless, T-mobile USA, American Messaging (am), American Messaging Services, The Telephone Connection Local Services, Metro PCS, Peerless Network, Metropcs Networks, Shelcomm, 33 Wireless, USA Mobility Wireless, Advanced Paging, and 365 Wireless.

For landline, popular carriers serving area code 805 which is an overlay of area code 820 are Pacific Bell, Pac – West Telecomm, 01 Comms, Verizon California-Ca (gte), Tw Telecom, U.S. Telepacific Corp, Pacific Bell – Clec, MPower Comms Corp, Broadwing Comms, T-mobile USA, Charter Fiberlink-Ca, Peerless Network, Telekenex, Advanced Paging, Paetec Comms, Arrival Comms, The Telephone Connection of Los Angeles, AT&T Local, Level 3 Communications, Teleport Comms Group – San Francisco, Ymax Comms Corp, Bandwidth.com, Metro PCS, Wide Voice, Sbc Internet Services, Allegiance Telecom, Utility Telephone, Norcast Comms Corp, Hypercube Telecom, MCI Metro ATS, Xo Comms, Halo Wireless Services, Cox California Telcom, North County Comms Corp, Tcast Comms,

Zip Codes in 820 Area Code

City	County	State	Area Code	Zip Code
Arroyo Grande	San Luis Obispo	California	820	93420
Arroyo Grande	San Luis Obispo	California	820	93421
Atascadero	San Luis Obispo	California	820	93422
Atascadero	San Luis Obispo	California	820	93423
Avila Beach	San Luis Obispo	California	820	93424
Bradley	Monterey	California	820	93426
Brandeis	Ventura	California	820	93064
Buellton	Santa Barbara	California	820	93427
Camarillo	Ventura	California	820	93010
Camarillo	Ventura	California	820	93012
Camarillo	Ventura	California	820	93011
Cambria	San Luis Obispo	California	820	93428
Carpinteria	Santa Barbara	California	820	93013
Carpinteria	Santa Barbara	California	820	93014
Casmalia	Santa Barbara	California	820	93429
Cayucos	San Luis Obispo	California	820	93430
Creston	San Luis Obispo	California	820	93432
Fillmore	Ventura	California	820	93015
Fillmore	Ventura	California	820	93016
Goleta	Santa Barbara	California	820	93117
Goleta	Santa Barbara	California	820	93116
Goleta	Santa Barbara	California	820	93199
Goleta	Santa Barbara	California	820	93118
Grover Beach	San Luis Obispo	California	820	93433
Grover Beach	San Luis Obispo	California	820	93483
Guadalupe	Santa Barbara	California	820	93434
Harmony	San Luis Obispo	California	820	93435
Lompoc	Santa Barbara	California	820	93437
Lompoc	Santa Barbara	California	820	93436
Lompoc	Santa Barbara	California	820	93438

 

Los Alamos	Santa Barbara	California	820	93440
Los Olivos	Santa Barbara	California	820	93441
Los Osos	San Luis Obispo	California	820	93402
Los Osos	San Luis Obispo	California	820	93412
Moorpark	Ventura	California	820	93021
Moorpark	Ventura	California	820	93020
Morro Bay	San Luis Obispo	California	820	93442
Morro Bay	San Luis Obispo	California	820	93443
Newbury Park	Ventura	California	820	91320
Newbury Park	Ventura	California	820	91319
Nipomo	San Luis Obispo	California	820	93444
Oak View	Ventura	California	820	93022
Oceano	San Luis Obispo	California	820	93445
Oceano	San Luis Obispo	California	820	93475
Ojai	Ventura	California	820	93023
Ojai	Ventura	California	820	93024
Oxnard	Ventura	California	820	93030
Oxnard	Ventura	California	820	93035
Oxnard	Ventura	California	820	93036
Oxnard	Ventura	California	820	93033
Oxnard	Ventura	California	820	93031
Oxnard	Ventura	California	820	93034
Oxnard	Ventura	California	820	93032
Paso Robles	San Luis Obispo	California	820	93446
Paso Robles	San Luis Obispo	California	820	93447
Piru	Ventura	California	820	93040
Pismo Beach	San Luis Obispo	California	820	93449
Pismo Beach	San Luis Obispo	California	820	93448
Point Mugu Nawc	Ventura	California	820	93042
Port Hueneme	Ventura	California	820	93041

 

Port Hueneme	Ventura	California	820	93044
Port Hueneme Cbc Base	Ventura	California	820	93043
San Luis Obispo	San Luis Obispo	California	820	93401
San Luis Obispo	San Luis Obispo	California	820	93405
San Luis Obispo	San Luis Obispo	California	820	93407
San Luis Obispo	San Luis Obispo	California	820	93406
San Luis Obispo	San Luis Obispo	California	820	93410
San Luis Obispo	San Luis Obispo	California	820	93408
San Luis Obispo	San Luis Obispo	California	820	93403
San Luis Obispo	San Luis Obispo	California	820	93409
San Miguel	Monterey	California	820	93451
San Simeon	San Luis Obispo	California	820	93452
Santa Barbara	Santa Barbara	California	820	93101
Santa Barbara	Santa Barbara	California	820	93106
Santa Barbara	Santa Barbara	California	820	93110
Santa Barbara	Santa Barbara	California	820	93105
Santa Barbara	Santa Barbara	California	820	93109
Santa Barbara	Santa Barbara	California	820	93111
Santa Barbara	Santa Barbara	California	820	93103
Santa Barbara	Santa Barbara	California	820	93108
Santa Barbara	Santa Barbara	California	820	93120
Santa Barbara	Santa Barbara	California	820	93160
Santa Barbara	Santa Barbara	California	820	93121
Santa Barbara	Santa Barbara	California	820	93130
Santa Barbara	Santa Barbara	California	820	93107
Santa Barbara	Santa Barbara	California	820	93140
Santa Barbara	Santa Barbara	California	820	93150
Santa Barbara	Santa Barbara	California	820	93190
Santa Barbara	Santa Barbara	California	820	93102
Santa Margarita	San Luis Obispo	California	820	93453

 

Santa Maria	Santa Barbara	California	820	93454
Santa Maria	Santa Barbara	California	820	93455
Santa Maria	Santa Barbara	California	820	93458
Santa Maria	Santa Barbara	California	820	93457
Santa Maria	Santa Barbara	California	820	93456
Santa Paula	Ventura	California	820	93060
Santa Paula	Ventura	California	820	93061
Santa Ynez	Santa Barbara	California	820	93460
Shandon	San Luis Obispo	California	820	93461
Simi Valley	Ventura	California	820	93065
Simi Valley	Ventura	California	820	93063
Simi Valley	Ventura	California	820	93094
Simi Valley	Ventura	California	820	93062
Simi Valley	Ventura	California	820	93099
Solvang	Santa Barbara	California	820	93463
Solvang	Santa Barbara	California	820	93464
Somis	Ventura	California	820	93066
Summerland	Santa Barbara	California	820	93067
Templeton	San Luis Obispo	California	820	93465
Thousand Oaks	Ventura	California	820	91362
Thousand Oaks	Ventura	California	820	91360
Thousand Oaks	Ventura	California	820	91358
Ventura	Ventura	California	820	93001
Ventura	Ventura	California	820	93003
Ventura	Ventura	California	820	93004
Ventura	Ventura	California	820	93005
Ventura	Ventura	California	820	93006
Ventura	Ventura	California	820	93007
Ventura	Ventura	California	820	93009
Ventura	Ventura	California	820	93002
Westlake Village	Ventura	California	820	91359

Area Code

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