601.693.1331 
Lost Card
Report Lost or Stolen Debit and Credit Cards
If your debit card or credit card has been lost or stolen, contact us immediately by telephone using the numbers provided.
CNB Debit Card or ATM Card
- During business hours: 601.693.1331
- After hours or on holidays: 1.800.754.4128 (within the U.S.) and 1.727.227.9012 (outside the U.S.)
CNB Credit Cards
- During business hours: 601.693.1331
- After hours or on holidays: 1.888.999.3340 (Business Platinum or Business Rewards), 1.866.312.0275 (Purchasing Card)
Activate ATM Cards and Consumer/Business Debit Cards
- Call 1.866.805.9565.
- Call Customer Care Center at 601.693.1331.
Report Fraudulent or Suspicious Activity
To report fraudulent or suspicious activity on your account, please call 601.693.1331 to speak with a CNB Customer Care Representative or contact your Personal Banker directly.