IBANs for Czechia with the correct country code, length and a valid ISO 7064 mod-97 check — they pass IBAN validators. The account portion is synthetic.
CZ8101000336389558417279| Browser | sampuli.site — pick Czechia, generate, export CSV/JSON |
| REST API | curl https://sampuli.site/api/v1/cz/account?n=25 |
| npm | npx @sampuli/data cz.account |
| Node | import { generate } from '@sampuli/data'; generate('cz.account') |