Area codes in Paso Robles, California
Paso Robles, California uses 2 area codes — 805 and 820. The main Paso Robles area code is 805.
Area codes serving Paso Robles
Phone numbers in Paso Robles are written as ten digits — for example (805) 555-0190 — and fall in the Pacific Time zone.
How Paso Robles came to have 2 area codes
The original Paso Robles area code is 805, in service since 1957. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 820 (2018). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Paso Robles now uses all 2 codes and every local call is dialed with ten digits.
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Frequently asked questions
What is the area code for Paso Robles?
The main area code for Paso Robles, California is 805. Paso Robles is now served by 2 area codes in total: 805, 820.
How many area codes does Paso Robles have?
Paso Robles has 2 area codes: 805, 820.
Why does Paso Robles have more than one area code?
As Paso Robles used up the numbers available in its original area code (805, in service since 1957), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Paso Robles number?
Dial all 10 digits — the area code (805 or 820) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.