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Live Chat with Us

Local representatives are available to Live Chat with you about all your banking needs weekdays from 8 a.m. to 5 p.m. Simply click on the green Live Chat tag on the lower left side of your screen.

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Call or Text Us

CNB Client Support: 1 (865) 429-7521
24 Hour Expressline Banking: 1 (865) 429-7900
CNB Comment Line: 1 (877) 262-4255

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Start a Conversation

Send a secure message directly to us using the “Conversations” function within your Digital Banking. Simply click on the “Message” icon on your dashboard to get started. Please do not include any confidential information, such as Social Security or account numbers, when submitting a message.

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Lost or Stolen Card

To report a lost or stolen debit card, call:

  • CNB Client Support: 1 (865) 429-7521
  • Toll Free: 1 (800) 603-2208
  • After Hours: 1 (888) 297-3416

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Reorder Personal Checks

To reorder personal checks, use routing number 064202255 and your account number to see available check styles and pricing.

Reorder Personal Checks Now

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Reorder Business Checks

Reorder business checks and other forms through the Deluxe online catalog.

Reorder Business Checks Now

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Tell Us How We’re Doing

Your feedback is very important to us. If you have any compliments, complaints or suggestions about our services, staff or facilities, or anything to share with us about your experience at CNB, please use the online form below.