: In 2018, First Financial Bancorp completed a merger with MainSource Financial Group.
: Former MainSource locations reopened as First Financial Bank branches on May 29, 2018. mainsource*bank
: You can access your accounts via the First Financial Online Banking portal . Customer Support : Phone : Call the Client First Center at 877-322-9530 . : In 2018, First Financial Bancorp completed a
: The routing number for the merged entity is 042200910 . Available Financial Services : In 2018
MainSource Bank was a community-focused financial institution headquartered in Greensburg, Indiana, which in May 2018.
: Monday–Friday (8:00 AM – 8:00 PM ET) and Saturday (8:00 AM – 5:00 PM ET).
: Contact support immediately at 833-347-7805 during business hours or 855-898-7288 after hours.