Orange County's Credit Union Address: 3825 Alton Pkwy, Irvine, CA 92606 Phone: (888) 354-6228 Hours: Mon: 9am-6pm Tue: 9am-6pm Wed: 9am-6pm Thu: 9am-6pm Fri: 9am-6pm Sat: 9am-2pm Banks Other Businesses: Cathay Bank at 4010 Barranca Pkwy, Irvine, CA 92604 Citibank ATM at 3996 Barranca Parkway, Irvine, CA 92606 HSBC Bank at 15315 Culver Dr, Irvine, CA 92604 Chase ATM at 3750 Barranca Pkwy, Irvine, CA 92606 U S Bank at 4180 Barranca Pkwy, Irvine, CA 92604