The American Bankers Association (ABA) created the 8-digit general purpose payment card issuer identification number (IIN) system, often referred to as BIN, in 1970, and subsequently codified it under the International Standards Organization (as ISO 7812). Over the years, the ABA managed the IIN system in-house. On September 1, 2023, the ABA handed off IIN management, which covers Visa, Mastercard and Discover cards, to Cusip Global Services (CGS), a business unit of FactSet since 2022. CSG is already a partner with the ABA on the management of numbers tied to stocks, bonds and other fin...