marcusandre/iban-regex.md

## iban-regex.md

      
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              iban-regex.md
            
          
    IBAN regular expression

The following regular expression will match:

AB12 1234 1234 1234 1234
AB12 1234 1234 1234 1234 1
AB12 1234 1234 1234 1234 12

but also:

AB123456789012345678
AB1234567890123456789
AB12345678901234567890

^[A-Z]{2}(?:[ ]?[0-9]){18,20}$

If you also need to match IBAN formats by country (BBAN Format), use:
^([A-Z]{2}[ \-]?[0-9]{2})(?=(?:[ \-]?[A-Z0-9]){9,30}$)((?:[ \-]?[A-Z0-9]{3,5}){2,7})([ \-]?[A-Z0-9]{1,3})?$