IID 30123
Alternative Bank Schweiz AG, Olten
| IID / BC-Nummer | 30123 |
|---|---|
| Institution | Alternative Bank Schweiz AG |
| Institution type | bank |
| IID type | other |
| Headquarters IID | 08390 |
| Seat | Amthausquai 21, 4600 Olten |
| BIC | ABSOCH22XXX |
| Payment services | SIC · RTGS CHF · Instant Payments CHF · euroSIC |
| SIC IID | 301238 |
| QR-IID | 30123 |
| Valid on | 2026-10-02 |
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 3012 3000 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.
QR-IID 30123: a QR-IBAN with this number expects a QRR reference on the QR-bill.
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": "08390",
"found": true,
"institution": {
"name": "Alternative Bank Schweiz AG",
"type": "bank",
"iid_type": "other",
"headquarters_iid": "08390"
},
"address": {
"street": "Amthausquai",
"building_number": "21",
"post_code": "4600",
"town": "Olten",
"country": "CH"
},
"bic": "ABSOCH22XXX",
"payment_services": {
"sic": true,
"rtgs_chf": true,
"instant_payments_chf": true,
"eurosic": true,
"lsv_bdd_chf": false,
"lsv_bdd_eur": false
},
"sic_iid": "301238",
"qr_iid": "30123",
"qr_iid_source": "register",
"valid_on": "2026-10-02",
"is_qr_iid": true,
"note": "IID 30123 is a QR-IID (QR-bill range 30000–31999) of Alternative Bank Schweiz AG; the institution's standard IID is 08390."
}Get this answer from your own software
The IBANforge API checks an IBAN and names the bank behind it, with its BIC when one is known, reading national registers such as the one on this page. Two ways to start without paying:
Keyless trial
Send an IBAN to POST /v1/iban/validate with no key at all, up to 25 times a week, on that route only. With this page’s example IBAN:
curl -X POST https://api.ibanforge.com/v1/iban/validate \
-H "Content-Type: application/json" \
-d '{"iban":"CH4530123000000000001"}'Free key
200 requests a month on every endpoint once you add an e-mail address and confirm the code sent to it. With no address and no card, it starts at 25 requests a month, straight away.
Source: SIX BankMaster, register as of 2026-10-02.