What is 909 Area Code?

The 909 area code was created on November 14, 1992, as a split from the original 714 area code. The split was necessary to meet the high demand for phone numbers in the rapidly growing Inland Empire, which includes San Bernardino and western Riverside counties. 

Over the years, the area code has been further subdivided to accommodate continued population growth, with new area codes like 951 and 840 being created. The 840 area code was introduced in 2021 as an overlay to the 909 area code, requiring all local calls to be dialed with a full ten-digit number.

  • State: California 
  • Major Cities: San Bernardino, Fontana, Rancho Cucamonga, Ontario, Pomona 
  • Time Zone: Pacific Standard Time (PST) / Pacific Daylight Time (PDT)
  • Established: November 14, 1992 
  • Overlay Area Code: 840 
  • Region Population: Over 2.5 million (shared with 840) 
  • Primary Uses: Business, Residential

Population & Demographics of 909 Area Code

The 909 area code serves a highly diverse and rapidly growing population. The region is a cultural melting pot, with a large Hispanic and Latino population and a mix of urban and suburban communities.

The economy is a powerhouse driven by logistics, manufacturing, transportation, and healthcare. The presence of major distribution centers and a strong labor force makes it a key location for business development, especially for e-commerce and supply chain companies.

909 Area Code Time Zone

The 909 area code is located entirely within the Pacific Time Zone (PT). This is a crucial detail for businesses, as it aligns with the major economic centers on the West Coast, including Los Angeles and San Francisco.