Today i had write the Regular Expression to match International Bank Account Number (formally IBAN) for Italy country. The regex expression is downloadable from : http://regexlib.com/REDetails.aspx?regexp_id=1621

This is the source : IT\d{2}[ ][a-zA-Z]\d{3}[ ]\d{4}[ ]\d{4}[ ]\d{4}[ ]\d{4}[ ]\d{3}|IT\d{2}[a-zA-Z]\d{22}

This is the match : IT28 W800 0000 2921 0064 5211 151 | IT28W8000000292100645211151

This is the unmatch : IT28-W800-0000-2921-0064-5211-151