2 ms·
The short answer is that, in theory, we are running out. It's kept in check now by some amount of BIN & account number recycling by financial institutions. If
by umeshunni 11y ago
The short answer is that, in theory, we are running out. It's kept in check now by some amount of BIN & account number recycling by financial institutions.
If you're curious about the number scheme, check out https://en.wikipedia.org/wiki/ISO/IEC_7812 https://en.wikipedia.org/wiki/ISO/IEC_7812
- codelitt 11y agoI don't believe we are that close to running out though, are we? Using the number scheme, this person calculated^1 that (assuming Amex starts issuing 16 digit cards) there would be 3*10^14 + 10^11 or 4.001e+14 possible combinations. [1]: https://www.reddit.com/r/theydidthemath/comments/3wj8eb/request_how_many_different_number_combinations/cxwmb7j https://www.reddit.com/r/theydidthemath/comments/3wj8eb/requ...