Customer Service:
PO Box for mailing in deposits
Fort Sill National Bank
Post Office Box 33009
Fort Sill, Oklahoma 73503-9989
At Fort Sill National Bank we are concerned and focused
on the quality and timeliness of our services to you, the customer. Please let us know if you have experienced any inconvenience or if you have an idea on how we can better fulfill your banking needs in the future. Email us or use our feedback form.
Lost Your Bank Card?
If your ATM Card, PIN, CheckCard, or VISA/Mastercard has been lost or stolen, or if an unauthorized transfer has taken place, call or write:
- Fort Sill National Bank CheckCard Department, or
- Fort Sill National Bank ATM Card Department
P.O. Box 33009
Fort Sill, OK 73503
(580) 357-9880
(800) 749-4583
(580) 250-0946 ATM FAX
Must be from a commercial fax line not a DSN line.
Business days and hours to report problems: Mon-Fri 7:00 a.m. to 7:00 p.m. and Saturday, 8:00 a.m. - 1:00 p.m. (Central Time), excluding federal holidays.
Address Change?
Please contact our Customer Service Department to change your address or request a change of address through The Front Line online banking system.
(580) 357-9880 Local and International
USA Toll Free (800) 749-4583
