Area code 626 covers the San Gabriel Valley region of Los Angeles County, California. Introduced in 1997 from a split of 818, it serves culturally diverse communities like Pasadena, Alhambra, and Arcadia. The region is known for its blend of historic neighborhoods, vibrant Asian-American communities, and proximity to downtown Los Angeles. Ten-digit dialing is required due to regional overlays. 626 has become a strong cultural identifier, frequently referenced in local art, cuisine, and film.