The first six digits, including the major industry identifier, compose the issuer identifier number (IIN) which identifies the issuing organization. The IINS was previously called the "bank identification number" (BIN) and some places still use that term.
Read more about this topic: ISO/IEC 7812
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“There is something tragic about the enormous number of young men there are in England at the present moment who start life with perfect profiles, and end by adopting some useful profession.”
—Oscar Wilde (1854–1900)