The DSB is responsible for generating ISIN, CFI & FISN for OTC Swaps, Non-Listed Options and Forwards traded or submitted to trading on an EU trading venue.
From a CFI perspective, the DSB assigns ISINs for instruments classified as:
| Category | Group |
| ‘S’ – Swaps | ‘R’ – Rates
‘T’ – Commodities ‘E’ – Equity ‘C’ – Credit ‘F’ – Foreign Exchange ‘M’ – Others (Miscellaneous) |
| ‘H’ – Non-listed and Complex Listed Options | ‘R’ – Rates
‘T’ – Commodities ‘E’ – Equity ‘C’ – Credit ‘F’ – Foreign Exchange ‘M’ – Others (Miscellaneous) |
| ‘J’ – Forwards | ‘R’ – Rates
‘T’ – Commodities ‘E’ – Equity ‘C’ – Credit ‘F’ – Foreign Exchange |
DSB ISINs can be identified exclusively by the prefix “EZ”
