909 Area Code — San Bernardino, CA
Area code 909 serves San Bernardino and 4 other cities in California. Local time follows America/Los_Angeles. It overlays with 840, so 10-digit dialling is required.
- State
- California
- Primary city
- San Bernardino
- Timezone
- America/Los_Angeles
- In service since
- 1992
- Type
- Geographic
- Overlay codes
- 840
Cities Served by 909
The 909 area code covers 5 cities and communities in California.
- San Bernardino
- Riverside
- Ontario
- Rancho Cucamonga
- Pomona
About Area Code 909
Area code 909 is a North American Numbering Plan (NANP) area code that has been in service since 1992. It is administered by NANPA on behalf of the FCC and serves the California region anchored on San Bernardino.
909 now shares its territory with an overlay code (840). 10-digit dialling is required for local calls within this region because the same 7-digit number can be assigned under either code.
Mobile numbers in 909 are portable: a person who moved away from San Bernardino may still carry a 909 mobile number on their device. If you receive an unexpected call from a 909 number, run it through the reverse lookup tool above for the most accurate, free identification.
If you live or do business in California, you may also interact with neighbouring or overlay codes (840). See the related codes section below to explore the rest of California.
Other California Area Codes
Continue exploring the California numbering plan.
909 Area Code FAQ
Where is area code 909?
Area code 909 is located in California, primarily serving San Bernardino and surrounding cities including Riverside, Ontario, Rancho Cucamonga. The region operates on PT (America/Los_Angeles) time.
What state is 909 area code?
909 is a California area code. It was put into service in 1992 and shares its geographic footprint with overlay code 840.
Is 909 a scam area code?
909 is a legitimate North American area code allocated by NANPA to California. Like any geographic area code, scammers sometimes spoof 909 numbers — judge each call by content (urgent demands, unfamiliar transfers) rather than the area code alone. Run the specific number through our reverse lookup if you're unsure.
What time zone does 909 use?
Area code 909 operates on PT (America/Los_Angeles). Numbers in this area code follow standard California time-zone rules including any daylight-saving transitions for that region.
Can I look up a specific 909 phone number?
Yes. Use the reverse lookup widget above to enter a full 909 number. NumLocation returns the line type (mobile, landline, VoIP), carrier, rate-center city, and any public listings tied to the number — free.
What's the difference between 909 and 840?
909 and 840 cover the same California geographic area as overlay codes. Calls between them are local, but you must dial all 10 digits. New phone numbers in this region are assigned from either pool depending on what's available with the carrier at signup.