What is a BIN?
A Bank Identification Number (or BIN) is the first 6 digits of a credit card number. BINs identify the bank that issued the card and help ensure that transactions are routed correctly. Though you might not give them much thought, BINs are an important part of the transaction process. Mastercard offers this short explanation video about BINs:Mastercard’s New BINs
Previously, Mastercard BINs started with numbers from 51 – 55. Now, the company has a new BIN range, the 2-series, and valid Mastercards may start with numbers 2221 – 2720.BINs by Card Brand
Each card brand has BINs that start with a specific number or set of numbers. The four most common credit cards in the US are Visa, Mastercard, Discover, and American Express. Their starting BINs are as follows:- Visa: 4
- Mastercard: 51-55, 2221-2720 (New)
- Discover: 6011, 622126-622925, 644-649, 65
- American Express: 34, 37
What do I need to do to accept the new Mastercard?
The good news is that processors have been aware of this change for months and many businesses won’t need to do anything. A representative from payment processor First Data (now Fiserv) indicated that some updates will occur automatically, while a representative for GDPay referenced terminal manufacturer Dejavoo’s auto update feature for its machines. Both of these comments indicate that there can be situations where a business would not need to take additional steps to accept the 2 series Mastercards. However, other businesses may require a manually-initiated update to their credit card terminal or online payment form. Businesses that use the following terminal brands may be more likely to need an update:- Equinox/Hypercom
- Ingenico
- PAX
