Members 1st Credit Union Mobile allows quick, easy, and secure access to your Members 1st account(s) anytime from anywhere. SecurityMobile data transmissions are safeguarded by 128-bit SSL (Secure Socket Layer) encryption to prevent unauthorized access. To register for Online Banking visit us online or call (530) 222-6060 or (800) 303-3838.Federally insured by NCUA.Message and data rates may apply.