Frost Credit Card IIN List
Frost issues credit and debit cards in United States under a total of four different Issuer Identification Numbers, or IINs (also called bank identification numbers, or BINs). For banks with multiple IINs, cards of the same type or within the same region will generally be issued under the same IIN. The IIN makes up the first six digits of all credit or debit cards issued by Frost, followed by the primary account number (PAN) and a check digit.
Issuer Identification Number (IIN) | Card Number Format | Type of Card | Country Issued |
---|---|---|---|
445423 | 4454 23XX XXXX XXXX | DEBIT | United States |
485631 | 4856 31XX XXXX XXXX | DEBIT | United States |
445423 | 4454 23XX XXXX XXXX | DEBIT | United States |
485631 | 4856 31XX XXXX XXXX | DEBIT | United States |
For more information, contact Frost at (866) 244-5360 .