Area code 626

Area code 626 is a telephone area code in the North American Numbering Plan for most of the San Gabriel Valley in the U.S. state of California. The numbering plan area also comprises nearby areas in the northeastern portion of Los Angeles County, California, including Arcadia, Monrovia, El Monte, most of Pasadena and West Covina. The numbering plan area was split from that of area code 818 on June 14, 1997.

History
Prior to October 2021, area code 626 had telephone numbers assigned for the central office code 988. In 2020, 988 was designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a conflict for exchanges that permit seven-digit dialing. This area code was therefore scheduled to transition to ten-digit dialing by October 24, 2021.

Service area

 * Alhambra (small portion in the 213/323 area code)
 * Altadena
 * Arcadia
 * Avocado Heights
 * Azusa
 * Baldwin Park
 * Bassett
 * Bradbury
 * Charter Oak
 * Citrus
 * Covina
 * Duarte
 * East Pasadena
 * East San Gabriel
 * El Monte
 * Glendora (small portion in the 909 area code)
 * Hacienda Heights (small portion in the 562 area code)
 * Industry (small portions in the 562 and 909 area codes)
 * Irwindale
 * La Puente
 * Mayflower Village
 * Monrovia
 * Monterey Park (also in the 213/323 area code)
 * North El Monte
 * Pasadena (small portion in the 213/323 area code)
 * Rosemead (small portion in the 213/323 area code)
 * Rowland Heights (also in the 909 area code and small portion in the 562 area code)
 * San Gabriel
 * San Marino
 * Sierra Madre
 * South El Monte
 * South Pasadena (also in the 213/323 area code)
 * South San Gabriel
 * South San Jose Hills
 * Temple City
 * Valinda
 * Vincent
 * Walnut (mostly in the 909 area code)
 * West Covina (small portion in the 909 area code)
 * West Puente Valley