AIB IBAN calculator
AIB IBANs start with IE, two check digits and AIBK, followed by your six-digit NSC and eight-digit account number. Enter your sort code (NSC) and account number to get your IBAN, built in your browser; this calculator is not affiliated with AIB.
Calculate your AIB IBAN
AIB’s BIC is AIBKIE2D, so every AIB IBAN carries AIBK after IE and the check digits. Your six-digit NSC, which identifies your branch, and your eight-digit account number follow.
Holyheld is not affiliated with AIB. Your bank’s app or statement shows your IBAN too; if it differs from the one built here, use your bank’s.
Already have an IBAN? Check it in the IBAN checker.
AIB IBAN format
| Detail | Value |
|---|---|
| IBAN length | 22 characters |
| Starts with | IEkk AIBK |
| Bank code in the IBAN | AIBK |
| BIC | AIBKIE2D |
| Sort code | Your six-digit NSC |
| Printed format | IEkk AIBK ssss sscc cccc cc |
| Source | “AIB’s BIC is AIBKIE2D” (aib.ie, checked 27 October 2026) |
Frequently asked questions
22 characters: IE, two check digits, the bank code AIBK, then your six-digit NSC and eight-digit account number. Printed in groups of four, it reads IEkk AIBK ssss sscc cccc cc.
No. Holyheld is not affiliated with AIB. The calculator applies the published Ireland IBAN format with AIB’s bank code AIBK, taken from AIB’s own website. It runs in your browser and sends nothing to a server.
In your AIB app, online banking or statements, which usually show the IBAN itself as well. If the IBAN your bank shows differs from the one built here, use your bank’s.
Paying an IBAN from stablecoins? Holyheld Business converts USDC to EUR and pays it out by SEPA. See pricing or the guide to off-ramping USDC to an IBAN.