Area code 805: California
What is area code 805?
Area code 805 is a US state area code for California, on Pacific Time. It has 786 prefixes in service across 41 rate centers, the largest being Santa Barbara, Oxnard and San Luis Obispo. It shares its area with 820, so local numbers there can start with any of them. Local calls there take 1 + 10 digits.
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See the phone add-onArea code 805 facts
| Location | California, United States |
|---|---|
| Time zone | Pacific Time |
| Overlays | 820 |
| Split from | 213 |
| In service since | January 1, 1957 |
| Local calls | 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
In short: 805 is California (Pacific Time). Format checks here are free and run in your browser; the current carrier and line type need a live lookup. Bulk phone number validator · Pro + Phone plan
Local time in area code 805
America/Los_Angeles
Prefixes in service
786 of 792 possible
41 rate centers
Which cities and towns use area code 805?
NANPA records each prefix against a rate center, the local billing area a number belongs to, usually named after its main town. These are the 805 rate centers with the most prefixes in service. 29 smaller ones aren't listed.
| Rate center | Prefixes |
|---|---|
| Santa Barbara | 86 |
| Oxnard | 75 |
| San Luis Obispo | 71 |
| Thousand Oaks | 64 |
| Santa Maria | 45 |
| Simi Valley | 43 |
| Ventura East | 36 |
| Camarillo | 36 |
| Paso Robles | 30 |
| Ventura Central | 28 |
| Lompoc | 25 |
| Newbury Park | 24 |
Source: NANPA central office code assignments, file dated 10/17/2026. Each prefix holds up to 10,000 numbers.
How do I dial a 805 number?
NANPA's dialling plan for 805: local calls inside the code take 1 + 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 805 | 1-805-555-0147 |
|---|---|
| From another US or Canadian area code | 1-805-555-0147 |
| From outside North America | +1 805 555 0147 |
| E.164, for CRMs and SMS tools | +18055550147 |
When did area code 805 start?
Area code 805 went into service on January 1, 1957, split from 213. Today 805 and 820 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 805 numbers
- Bulk phone number validator
Format, country and number type for every number in a CSV, with E.164 output.
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- Area code time zone
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- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 805 number tells you where it was issued, not what it is now.
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Area code 805 questions
- What state is area code 805?
- Area code 805 is in California, United States. Its largest rate centers by number of prefixes are Santa Barbara, Oxnard, San Luis Obispo, Thousand Oaks and Santa Maria.
- What time zone is area code 805 in?
- Pacific Time.
- What area codes overlay 805?
- 820. An overlay adds a new code to the same area instead of splitting it, so neighbours can have different area codes and local calls need 10 digits.
- When did area code 805 start?
- Area code 805 went into service on January 1, 1957, split from 213.
- Is an 805 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 805 have?
- 786 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
- Does a valid format mean a 805 number is in service?
- No. A format check only says the digits fit the North American Numbering Plan and that 805 is an assigned code. It cannot tell whether the number is connected, who answers it or which carrier serves it today, because numbers are reassigned and ported. A live carrier lookup reports the current carrier and line type, but even that is not proof someone answers.
- Can I check a list of 805 numbers for free?
- Yes. Paste them in the list tab above or upload a CSV to the bulk phone number validator: format, E.164, country and the numbering-plan line type are free for every row, with no account. Live carrier and line-type lookups come with Pro + Phone at $49.99/mo (5,000 a month).
Other area codes in California
All California area codes on the area code index.
209213279310323341350357369408415424442510530559562619626628650657661669707714738747760818820831837840858909916925949951
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and rate centers: NANPA central office code assignments, 10/17/2026. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.