Area codes 909 and 840 are telephone area codes in the North American Numbering Plan. They work for the far-eastern part of Los Angeles County and southwestern San Bernardino County in the U.S. state of California. Area code 909 was created on November 14, 1992 in an area code split of 714. 840 was added to the numbering plan area to form an overlay complex effective February 23, 2021.
This short article about the United States can be made longer. You can help Wikipedia by adding to it.Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
