Area codes in Stockton, California
Stockton, California uses 2 area codes — 209 and 350. The main Stockton area code is 209.
Area codes serving Stockton
Phone numbers in Stockton are written as ten digits — for example (209) 555-0190 — and fall in the Pacific Time zone.
How Stockton came to have 2 area codes
The original Stockton area code is 209, in service since 1958. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 350 (2022). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Stockton now uses all 2 codes and every local call is dialed with ten digits.
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More cities in California
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Frequently asked questions
What is the area code for Stockton?
The main area code for Stockton, California is 209. Stockton is now served by 2 area codes in total: 209, 350.
How many area codes does Stockton have?
Stockton has 2 area codes: 209, 350.
Why does Stockton have more than one area code?
As Stockton used up the numbers available in its original area code (209, in service since 1958), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Stockton number?
Dial all 10 digits — the area code (209 or 350) 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.