Area code 909 covers the Inland Empire region of Southern California, including San Bernardino, Ontario, Fontana, and Rancho Cucamonga. Learn about coverage, time zone, and how to get a local 909 number.
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.
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.
| City | County | Population | Notes |
|---|
Related articles
| San Bernardino | San Bernardino | ~222,000 | County seat, largest city |
| Fontana | San Bernardino | ~214,000 | Major logistics hub |
| Ontario | San Bernardino | ~175,000 | Ontario International Airport |
| Rancho Cucamonga | San Bernardino | ~177,000 | Affluent suburb |
| Pomona | Los Angeles | ~151,000 | Cal Poly Pomona |
| Chino | San Bernardino | ~91,000 | Dairy industry heritage |
| Chino Hills | San Bernardino | ~83,000 | Residential community |
| Upland | San Bernardino | ~79,000 | Foothill community |
| Redlands | San Bernardino | ~73,000 | University of Redlands |
| Rialto | San Bernardino | ~104,000 | Amazon fulfillment center |
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.
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).
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.
The Inland Empire is one of the largest and fastest-growing metropolitan areas in the United States, with a diverse economy:
Logistics & Distribution
Manufacturing
Healthcare & Education
Retail & Services
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.
Telnyx offers local phone numbers in the 909 area code. You get:
Browse available 909 numbers or contact sales to discuss your needs.
| Area Code | Region | Major City | Relationship to 909 |
|---|---|---|---|
| 840 | Inland Empire | San Bernardino | Overlay (same area) |
| 951 | Riverside County | Riverside | East/South |
| 626 | San Gabriel Valley | Pasadena | West |
| 714/657 | Orange County | Anaheim | Southwest |
| 760/442 | High Desert / Palm Springs | Victorville | North/East |
| 213/323 | Los Angeles | Los Angeles | West |
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).
