820 area code
Camarillo area, Pacific Time.Area code 820 covers Camarillo, Oxnard, Newbury Park and 36 more places in California, on Pacific Time. 805 covers the same area.
Right now in Camarillo
Pacific Time (PST, UTC-8; PDT, UTC-7 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Small talk
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Where 820 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 820 has 39. Each one's share is how many 820 numbers start there. Its biggest metro area is Oxnard-Thousand Oaks-Ventura, CA.
- Camarillo12%
- Oxnard9%
- Newbury Park9%
- Atascadero9%
- Santa Barbara8%
- Santa Maria7%
- Ventura4%
- San Luis Obispo3%
- Simi Valley3%
- El Rio3%
- Guadalupe3%
- Thousand Oaks2%
Also: Paso Robles, Lompoc, Arroyo Grande, Santa Paula, Pismo Beach, Piru, Gaviota, Conejo, Santa Ynez, Ojai, Point Mugu, Fillmore + 15 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call an 820 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 820 number to them, since you can't tell a work line from a personal cell.
What applies to 820Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
820 and 805
820 went into service on June 30, 2018. 820 and 805 cover the same area, so new numbers can get either code and neighbors can have different area codes. 820 holds 10% of the area's exchanges; 805 holds the most. Local calls take all 10 digits.
- 1957805 overlay
- 2018820 starts
Source: NANPA area code database
Other California area codes
All California area codes- Stockton209350
- Los Angeles213323738
- Sacramento279916
- Compton310424
- Oakland341510
- Fresno357559
- Santa Rosa369707
- San Jose408669
- San Francisco415628
- Oceanside442760
- Chico530837
- Long Beach562
- San Diego619858
- Alhambra626
- Palo Alto650
- Anaheim657714
- Bakersfield661
- Van Nuys747818
- Salinas831
- Ontario840909
- Walnut Creek925
- Irvine949
- Riverside951
Calling a list of 820 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
820 area code FAQ
What area code is 820?
820 is a California area code for Camarillo, Oxnard, Newbury Park, Atascadero and 35 more places.
What time zone is the 820 area code in?
Pacific Time (PST, UTC-8; PDT, UTC-7 in summer).
Is 805 the same as 820?
Same area, different code. 820 and 805 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 820 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 820 area code start?
On June 30, 2018.
Calling 820 numbers? Reach more of them.
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