IBAN formats allowing only numeric BBAN
The BBAN starts after country code and check digits, i.e. after position 4 of the electronic format.
Maps
Frequency
As of 2012-08-10.
Some countries have numeric-only BBAN formats. The one with the highest frequency is the 20n format, being used by five countries.
Twelve countries use only full groups of four:
- 12 BE
- 16 BS, AT, EE, LT
- 20 CZ, SK, ES, SE, TN
- 24 HU, PL
Countries using formats that are only numeric after the country code and the check characters are:
| BBAN length | ISO 3166-1 alpha-2 codes for countries | Quantity of countries using that format | Length is a multiple of 4 |
|---|---|---|---|
| 11 | NO | 1 | no |
| 12 | BE | 1 | yes |
| 14 | FO, GL, FI (including AX), DK | 4 | no |
| 15 | SI | 1 | no |
| 16 | BS, AT, EE, LT | 4 | yes |
| 17 | HR, CR | 2 | no |
| 18 | DE, ME, RS | 3 | no |
| 19 | AE, IL | 2 | no |
| 20 | CZ, SK, ES, SE, TN | 5 | yes |
| 21 | PT | 1 | no |
| 22 | IS | 1 | no |
| 23 | MR | 1 | no |
| 24 | HU, PL | 2 | yes |
| 11-24 | 28 | 12 |
Hexdecimal representation
- 9999 9999 9999 9999 9999 (20n, 99999999999999999999) is 56BC 75E2 D630 FFFF F (17h, 56BC75E2D630FFFFF)
- FFFF FFFF FFFF FFFF (16h FFFFFFFFFFFFFFFF) is 1844 6744 0737 0955 1615 (20n, 18446744073709551615)
Numeric BBAN of up to 19 digits can be converted to 16 digit BBAN in hex.
Alphanumeric BBAN
- AL:8!n16!c
- AD:4!n4!n12!c
- AZ:4!a20!c
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