By U.S. Mail ; Correspondence can be mailed to: 

TTCU Federal Credit Union 

PO Box 477550 

Tulsa, OK 74147-7550


By Telephone: 

Call: (918) 749-8828 or toll-free (800) 234-8828.   Specialists are available by phone 7:30 a.m. to 6:30 p.m. Monday through Friday, and 8:30 a.m. to 1:30 p.m. Saturday


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