909 Area Code 🌍☎️

The most populous cities in area code 909 are: Ontario, San Bernardino, Upland, Fontana, and Chino.

Other cities in the 909 area code include: Pomona, Colton, Rialto, Highland, Redlands, La Verne, Diamond Bar, Riverside, Claremont, Calimesa, Mentone, Rancho Cucamonga, Big Bear Lake, Big Bear City, San Dimas, Covina, Victorville, Hemet, Eastvale, Anaheim, Temecula, Corona, Walnut, and Grand Terrace.

Ontario is a city located in southwestern San Bernardino County, California, United States, 35 miles (56 km) east of downtown Los Angeles. Located in the western part of the Inland Empire region, it lies just east of the Los Angeles county line and is part of the Greater Los Angeles Area. As of the 2010 Census, the city had a population of 163,924, up from 158,007 at the 2000 census, making it the county's fourth most populous city after San Bernardino, Fontana, and Rancho Cucamonga. [ not verified in body ]The city is home to the Ontario International Airport, which is the 15th busiest airport in the United States by cargo carried. Ontario handles the mass of freight traffic between the ports of Los Angeles and Long Beach and the rest of the country. It is also the home of Ontario Mills and former home of the Ontario Motor Speedway. [ not verified in body ]It takes its name from the Ontario Model Colony development established in 1882 by the Canadian engineer George Chaffey and his brothers William Chaffey and Charles Chaffey. They named the settlement after their home province of Ontario. [ not verified in body ]

San Bernardino / ˈ s æ n ˌ b ɜːr n ɑːr ˈ d iː n oʊ / is a city located in the Riverside-San Bernardino metropolitan area (sometimes called the "Inland Empire"). It serves as the county seat of San Bernardino County, California, United States. As one of the Inland Empire's anchor cities, San Bernardino spans 81 square miles (210 km 2) on the floor of the San Bernardino Valley and has a population of 209,924 as of the 2010 census. San Bernardino is the 17th-largest city in California and the 100th-largest city in the United States. San Bernardino is home to numerous diplomatic missions for the Inland Empire, being one of four cities in California with numerous consulates (the other three being Los Angeles, San Diego and San Francisco). The governments of Guatemala and Mexico have established their consulates in the downtown area of the city. California State University, San Bernardino is located in the northwestern part of the city. The university also hosts the Coussoulis Arena. Other attractions in San Bernardino include ASU Fox Theatre, the McDonald's Museum, which is located on the original site of the world's first McDonald's, California Theatre, the San Bernardino Mountains, and San Manuel Amphitheater, the largest outdoor amphitheater in the United States. In addition, the city is home to the Inland Empire 66ers baseball team; they play their home games at San Manuel Stadium in downtown San Bernardino. In August 2012, San Bernardino became the largest city to choose to file for protection under Chapter 9 of the U.S. Bankruptcy code ; this has been superseded by Detroit's filing in July 2013. San Bernardino's case was filed on August 1. On December 2, 2015, a terrorist attack left 14 people dead and 22 seriously injured.

Upland is a city in San Bernardino County, California, in the United States. The municipality is located at an elevation of 1,242 feet (379 m). As of the 2010 census, the city had a population of 73,732, up from 68,393 at the 2000 census. It was incorporated on May 15, 1906, after previously being named North Ontario. Upland is located at the foot of the highest part of the San Gabriel Mountains. The city is part of the Inland Empire, a metropolitan area situated directly east of the Los Angeles metropolitan area.

The 909 area code lies within the Pacific Daylight Time Zone (or PDT). The current time in Pacific Daylight Time is 04:24 AM on Mar 10, 2026.