909 Area Code: San Bernardino, California — Coverage, Time Zone & Phone Numbers

Area code 909 serves the Inland Empire region of Southern California, covering southwestern San Bernardino County, eastern Los Angeles County, and parts of Riverside County. If you need a local presence in this region, you can get a 909 phone number through Telnyx.

What area does 909 cover?

The 909 area code covers the western portion of the Inland Empire, one of the fastest-growing regions in California. It spans multiple counties in Southern California.

The region also includes Diamond Bar, Claremont, La Verne, Montclair, Colton, Loma Linda, Yucaipa, and Big Bear Lake. For complete coverage details, see the NANPA area code map.

909 area code time zone

Area code 909 is in the Pacific Time Zone (PT). During standard time, this is UTC-8 (PST). During daylight saving time, it shifts to UTC-7 (PDT).

History of the 909 area code

The 909 area code was created in 1992 when it split from the 714 area code (which now serves Orange County). The split was necessary due to rapid population growth in the Inland Empire.

In 2021, the 840 area code was added as an overlay to the same geographic region. Both 909 and 840 now serve the same area, so new phone lines may be assigned either area code. This means 10-digit dialing (area code + number) is required for all local calls. For regulatory details, visit the California Public Utilities Commission.

Why the 909 region matters for business

The Inland Empire is one of the largest and fastest-growing metropolitan areas in the United States, with a diverse economy:

Logistics & Distribution

• Ontario International Airport — major cargo hub
• Massive warehouse and fulfillment center concentration
• Strategic location for West Coast distribution
• Amazon, FedEx, UPS major facilities

Manufacturing

• Food processing and packaging
• Building materials and construction
• Aerospace components

Healthcare & Education

• Loma Linda University Medical Center — world-renowned healthcare
• Cal Poly Pomona — major state university
• University of Redlands
• Kaiser Permanente regional facilities

Retail & Services

• Ontario Mills — major retail destination
• Victoria Gardens
• Growing service sector

A local 909 number helps businesses build trust with customers in this region. Calls from local area codes have higher answer rates than unfamiliar or toll-free numbers.

Get a 909 phone number

Telnyx offers local phone numbers in the 909 area code. You get:

• Instant provisioning — activate numbers in minutes, not days
• Flexible pricing — pay only for what you use
• Voice, SMS, and MMS — full communication capabilities
• API access — programmatic number management
• Number portability — bring your existing 909 numbers to Telnyx

Browse available 909 numbers or contact sales to discuss your needs.

Neighboring area codes

Frequently asked questions

What area code is 909? Area code 909 serves the Inland Empire region of Southern California, including San Bernardino, Fontana, Ontario, Rancho Cucamonga, and Pomona.

What time zone is 909? Pacific Time (PT) — UTC-8 standard, UTC-7 during daylight saving.

Is 909 the same as 840? Yes, 840 is an overlay that covers the same geographic area as 909. Both area codes serve the Inland Empire.

Do I need to dial the area code for local calls? Yes. Since the 840 overlay was introduced in 2021, all calls require 10-digit dialing (area code + 7-digit number).