820 area code — Camarillo, CA geographic
- State
- California
- Major area
- Camarillo
- Time zone
- Pacific
- In service since
- 2018-06-30
- Split from
- 805
- Overlay complex
- 805 / 820
- Active prefixes
- 88
- Rate centers
- 30
- Carriers
- 20
- Projected exhaust
- 3Q 2074
If a call shows area code 820, the number was issued in the Camarillo area — a code active since 2018, on Pacific time. It is part of the 805/820 overlay complex — these codes share the same territory. Note that porting and VoIP mean a 820 number can be used from anywhere — the code marks where the number was assigned.
88 central-office prefixes are currently active in this code, spread across 20 code-holding carriers. Thousands-block pooling applies to 87 prefixes, so a single prefix can belong to several carriers. Its prefixes map to 30 distinct rate centers.
NANPA projects numbering capacity for the 805/820 complex to exhaust in 3Q 2074.
820 was created from 805 in 2018.
Dialing: 1+10D locally, 1+10D to other codes.
To check where a specific 820 number was issued, look up its six-digit prefix; to check who is actually calling, ignore the display and verify through an official callback number — caller ID is assertable and routinely spoofed.
Largest localities in 820
| Locality (rate center) | Active prefixes | Also served by |
|---|---|---|
| Camarillo | 11 | 805 |
| Oxnard | 8 | 805 |
| Atascadero | 8 | 805 |
| Newbury Park | 8 | 805 |
| Santa Barbara | 6 | 805 |
| Santa Maria | 5 | 805 |
| San Luis Obispo | 3 | 805 |
| Guadalupe | 3 | 805 |
| El Rio | 3 | 805 |
| Simi Valley | 3 | 805 |
FAQ
Will 820 run out of numbers?
NANPA's current forecast projects exhaust in 3Q 2074 — decades of capacity remain.
Why am I getting spam calls from 820 numbers?
Scammers spoof recognizable area codes so calls look local or familiar. A displayed 820 number does not prove the call originated there — see our guide to spotting spoofed calls.
Where is a 820 number from?
820 is assigned to Camarillo and surrounding areas of California in the Pacific time zone. The three digits after the area code (the prefix) narrow it down to a rate center.
Is 820 a toll-free number?
No. 820 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.
Why do 805 and 820 cover the same place?
They are overlays: when a code runs low on numbers, a new code is added over the same territory instead of splitting it. The 805/820 complex shares one service area, and local calls are dialed with 10 digits.