SanBernardinoCounty

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Where is Area Code 909 Located?

Cities and Regions Covered by Area Code 909 Area code 909 is a California telephone area code that was first introduced in 1992. It serves parts of San Bernardino County, Riverside County, and eastern Los Angeles County. The cities and regions covered by area code 909 include: San Bernardino County: San Bernardino, Ontario, Rancho Cucamonga, Fontana, Rialto, Colton, Redlands, Highland,…