Area code 661 serves northern Los Angeles County and parts of Kern County, including cities like Santa Clarita, Palmdale, Lancaster, and Bakersfield. Created in 1999 as a split from area code 805, 661 was introduced to meet the demand of fast-growing suburbs and inland communities. The region combines aerospace industries in the Antelope Valley with agriculture and oil production in the southern Central Valley. Known for its diverse economy and affordable housing, 661 has become a key area for those commuting to Los Angeles. Despite being relatively newer, the area code has developed a strong local identity. It plays a vital role in connecting rural, suburban, and industrial regions of Southern California. The 661 region continues to expand as both a residential and commercial hub outside LA’s urban core.