Major Industry Identifier
The major industry identifier (MII) is the first digit of the ISO/IEC 7812 issuer identifier number. It identifies the industry within which the card is primarily to be used.
| MII digit value | Issuer category |
|---|---|
| 0 | ISO/TC 68 and other industry assignments |
| 1 | Airlines |
| 2 | Airlines and other future industry assignments |
| 3 | Travel and entertainment and banking/financial |
| 4 | Banking and financial |
| 5 | Banking and financial |
| 6 | Merchandising and banking/financial |
| 7 | Petroleum and other future industry assignments |
| 8 | Healthcare, telecommunications and other future industry assignments |
| 9 | For assignment by national standards bodies |
If the major industry identifier is 9 the next three digits are the numeric-3 country code from ISO 3166-1.
Read more about this topic: ISO/IEC 7812
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