Area codes in Calabasas, California
Calabasas, California uses 2 area codes — 818 and 747. The main Calabasas area code is 818.
Area codes serving Calabasas
Phone numbers in Calabasas are written as ten digits — for example (818) 555-0190 — and fall in the Pacific Time zone.
How Calabasas came to have 2 area codes
The original Calabasas area code is 818, in service since 1984. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 747 (2009). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Calabasas 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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- San Diego area codes
- San Francisco area codes
- Sacramento area codes
- San Jose area codes
- Fresno area codes
- Long Beach area codes
- Oakland area codes
Frequently asked questions
What is the area code for Calabasas?
The main area code for Calabasas, California is 818. Calabasas is now served by 2 area codes in total: 818, 747.
How many area codes does Calabasas have?
Calabasas has 2 area codes: 818, 747.
Why does Calabasas have more than one area code?
As Calabasas used up the numbers available in its original area code (818, in service since 1984), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Calabasas number?
Dial all 10 digits — the area code (818 or 747) 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.