IBAN format · AT
Austria IBAN format
IBANs issued in Austria are 20 characters long and follow the ISO 13616 structure below.
Country code
AT
Total length
20 chars
Check-digit algo
MOD 97-10
ISO 13616 pattern
5!n11!n
5 digits (digits (0–9)), then 11 digits (digits (0–9))
Structure breakdown
The IBAN is read left to right: a 2-letter country code, 2 check digits, then the country-specific BBAN split into 2 fields.
Country code
ISO 3166 — Austria
AT
Check digits
MOD 97-10 checksum
61
BBAN field 1
5 digits · digits (0–9)
19043
BBAN field 2
11 digits · digits (0–9)
00234573201