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IBANforge
SIX BankMaster

IID 89099

Erste Group Bank AG, Wien

IID / BC-Nummer89099
InstitutionErste Group Bank AG
Institution typeforeign participant
IID typeheadquarters
Headquarters IID89099
SeatAm Belvedere 1, 1100 Wien
BICGIBAATWGXXX
Payment servicesSIC
SIC IID890990
QR-IIDnone
Valid on2026-09-01

IBAN structure with this code

A Swiss IBAN is CH, two check digits, the five-digit IID, then a twelve-digit account part. When the institution holds a QR-IID, the QR-IBAN of a QR-bill carries that number in the same position.

CH45 8909 9000 0000 0000 1

Synthetic example: the account part is a placeholder, this IBAN belongs to nobody. It shows where the code sits inside the IBAN.

What the API answers for this code

The block below is the route's own answer, produced by the same code that serves api.ibanforge.com, on the register as of the date shown. Nothing is edited.

{
  "iid": "89099",
  "found": true,
  "institution": {
    "name": "Erste Group Bank AG",
    "type": "foreign_participant",
    "iid_type": "headquarters",
    "headquarters_iid": "89099"
  },
  "address": {
    "street": "Am Belvedere",
    "building_number": "1",
    "post_code": "1100",
    "town": "Wien",
    "country": "AT"
  },
  "bic": "GIBAATWGXXX",
  "payment_services": {
    "sic": true,
    "rtgs_chf": false,
    "instant_payments_chf": false,
    "eurosic": false,
    "lsv_bdd_chf": false,
    "lsv_bdd_eur": false
  },
  "sic_iid": "890990",
  "qr_iid": null,
  "qr_iid_source": null,
  "valid_on": "2026-09-01"
}
Check an IBAN in the playgroundAudit a whole creditor fileSwiss clearing numbers (IID / BC-Nummer)

Source: SIX BankMaster, register as of 2026-09-01.