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  2. Postoffice IINs

Postoffice Credit Card IIN List

Postoffice issues credit and debit cards in United Kingdom under a total of two 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 Postoffice, followed by the primary account number (PAN) and a check digit.

Issuer Identification Number (IIN) Card Number Format Type of Card Country Issued
Postoffice Mastercard Card 542598 5425 98XX XXXX XXXX CREDIT United Kingdom
Postoffice Mastercard Card 542598 5425 98XX XXXX XXXX CREDIT United Kingdom

For more information, contact Postoffice at (845) 607-6500 .

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Source: http://www.creditcardvalidator.org/postoffice