LEIcheck digits + live GLEIF entity, parents included
UTIgenerator LEI split out and verified
ISINLuhn check, prefix decode, embedded CUSIP/SEDOL
UPIISO 4914 structure and charset
CFIfull ISO 10962:2021 decode, all 78 groups
MICcomplete ISO 10383 list with operator LEIs
CCY / CTYISO 4217 minor units, ISO 3166 codes
FIGI / CUSIP / SEDOLcheck digits and ISIN round-trips