TTCU Federal Credit Union is the second largest credit union in Oklahoma, serving more than 120,000 members with 15 branch locations. Established in 1934, TTCU is a full-service financial institution offering a full complement of products and services. As a not-for-profit organization, TTCU's financial success is returned to our members in the form of low-rate loans and high-rate savings accounts. Call us at 918-749-8828, 1-800-234-8828 or visit www.ttcu.com for more information. TTCU is federally insured by the NCUA. Equal Housing Lender.