909 Area Code: Riverside and San Bernardino's Number in the Inland Empire

909 was created in 1992 when Southern California's original 714 area code split, giving the fast-growing Inland Empire region its own dedicated prefix.

History & Coverage

909 launched in 1992 covering Riverside, San Bernardino, and the surrounding Inland Empire. As the region's population and warehouse economy grew, the 951 split occurred in 2004 to serve the southern portion.

Why Businesses Choose 909

• Logistics and warehousing dominance: the Inland Empire is one of the largest logistics and distribution hubs in the US, serving the ports of Los Angeles and Long Beach
• Manufacturing and distribution growth: major national retailers and e-commerce companies operate massive fulfillment centers throughout the 909 region
• Lower-cost business alternative: many companies use 909 to establish a Southern California presence at lower real estate costs than coastal LA or Orange County

Key Industries & Neighborhoods

Ontario and Fontana anchor massive logistics and distribution centers, while Riverside and San Bernardino add manufacturing, healthcare, and a growing university-driven economy.

Fun Facts

• The Inland Empire has one of the highest concentrations of warehouse and distribution space in the entire United States
• Ontario International Airport, within the 909 footprint, has become a major air cargo hub for Southern California

Conclusion

For logistics, distribution, and manufacturing businesses serving the West Coast, 909 remains the area code most tied to one of the country's most important supply chain regions.