Corona, CA is currently using one area code which is area code 951. Area code 951 was created from a split of area code 909 and put into service on July 17, 2004.
In addition to Corona, CA area code 951 serves western portions of Riverside County, the larger communities of Banning, Corona, Fontana, Hemet, Moreno Valley, Murrieta, Norco, Perris, Riverside, Rubidoux, Temecula in addition to many smaller communities within the service area.
Corona, CA is located in Riverside County and observes the Pacific Time Zone. View our Times by Area Code tool.