Pasadena, CA is currently using one area code which is area code 626. Area code 626 was created from a split of area code 818 and put into service on June 14, 1997.
In addition to Pasadena, CA area code 626 serves much of the San Gabriel Valley are of California including the larger cities and communities of Alhambra, Altadena, Arcadia, Azusa, Baldwin Park, Bradbury, Covina, Duarte, El Monte, Glendora, Hacienda Heights, La Puente, Monrovia, Monterey Park, Pasadena, Pomona, Rosemead, Rowland Heights, San Gabriel, South El Monte, South Pasadena, Temple City, Valinda, Walnut, and West Covina in addition to many smaller communities.
Pasadena, CA is located in Los Angeles County and observes the Pacific Time Zone. View our Times by Area Code tool.