Area code
Area code 820 — Camarillo, CA
California · in service since June 30, 2018
Area code 820 covers parts of California; the place with the most of its prefixes is Camarillo. It is an overlay: 805 serves the same area, so neighbors can have different area codes.
Overlay, same area: 805
Local time in Camarillo
Spam reports from Sep 23 – Oct 22, 2026
Low #378 of 461 codes
95 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zonePacific Time
- Local calls1 + 10 digits
- Prefixes112 assigned
- Runs out~3Q 2074
- Unwanted call?Block & report
Spam call reports about 820 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 4 |
| Sep 14 | 24 |
| Sep 21 | 26 |
| Sep 28 | 29 |
| Oct 5 | 8 |
| Oct 12 | 12 |
| Oct 19 (4 days) | 34 |
Compared with all codes
- Robocalls
- 72%all codes 75%
- Callers with the same code
- 6%all codes 35%
- Rank by complaints
- #378of 461 · bottom quarter
- FCC complaints, Oct 2025 – Sep 2026
- 251 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Reducing your debt (credit cards, mortgage, student loans) | 44 32% | |
| Calls pretending to be government, businesses, or family and friends | 32 23% | |
| Dropped call or no message | 5 4% | |
| Medical & prescriptions | 2 1% | |
| Work from home & other ways to make money | 1 1% | |
| Other | 43 31% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| California | 28 20% | |
| Florida | 14 10% | |
| Ohio | 11 8% | |
| Georgia | 8 6% | |
| New York | 7 5% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 820 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| CAMARILLO | Camarillo | Ventura County | 12 |
| NEWBURYPRK | — | — | 10 |
| ATASCADERO | Atascadero | San Luis Obispo County | 8 |
| OXNARD | Oxnard | Ventura County | 8 |
| SANBARBARA | Santa Barbara | Santa Barbara County | 8 |
| SANTAMARIA | Santa Maria | Santa Barbara County | 6 |
| ARROYOGRND | Arroyo Grande | San Luis Obispo County | 3 |
| EL RIO | El Rio | Ventura County | 3 |
| GUADALUPE | Guadalupe | Santa Barbara County | 3 |
| PASOROBLES | — | — | 3 |
Plus 21 smaller exchange areas.
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
NANPA record
- Location
- California
- Assigned by NANPA
- May 25, 2017
- Local dialing
- 1 + 10 digits (NANPA: 1+10D)
- NANPA planning letters
- PL-509
Source: NANPA, NPA database of Oct 24, 2026.
Is 820 running out of numbers?
Previous forecast (October 2025): 2070, moved later by 4 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 820 prefixes
The five largest of 24 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Fractel, LLC | 32 29% | |
| New Cingular Wireless PCS, LLC | 18 16% | |
| Onvoy, LLC | 12 11% | |
| Multiple Ocn Listing | 9 8% | |
| T-Mobile USA, Inc. | 8 7% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 820
What area code is 820?
A California area code, in service since June 30, 2018.
Where is 820 area code, and what time zone is it in?
Camarillo, CA; Pacific Time.
Why am I getting spam calls from 820?
95 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).
Will 820 get a new area code?
NANPA forecasts exhaust in 3Q 2074; no relief planning listed.