At the end of the third quarter, $23.38 billion in credit card loans were delinquent or in nonaccrual status at U.S. banks, up from $20.95 billion at June 30 and $21.78 billion in the year-ago quarter.

In aggregate, credit card loans rose in the third quarter, pushing the industry's total to $856.33 billion as of Sept. 30.

Citigroup Inc. is the largest lender among U.S. banks and thrifts for credit card loans with a balance of $154.68 billion at the end of September.

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