Updated over a week ago Go here: IBAN Standard Structure . The IBAN structure is defined in ISO 13616-1, and consists of a two-letter ISO 3166-1 country code, followed by two check digits and up to thirty alphanumeric characters for a BBAN (Basic Bank Account Number) which has a fixed length per country and a bank identifier included within it, with a fixed position and a fixed length per country. 1 digit code for national code. 5 characters from the bank's bank code. 5 digit code for the bank branch. 12 digit code for the bank account number. Already have an IBAN code? Check IBAN. IBAN example in Italy. IT60X0542811101000000123456. IBAN in print format. EXAMPLE Top 10 Banks* in the USA and their SWIFT codes: P.Morgan Chase & Co in New York City, NY – BOFAUS3DSHA. Bank of America in Charlotte, North Carolina – BOFAUS3DCRD. Wells Fargo in San Francisco, California – WFBIUS6S. Citigroup in New York City, NY – CITIUS33. Goldman Sachs Group in New York City, NY – GSCMUS33. The Bundesbank publishes an up-to-date overview of the IBAN rules (as a pdf document) in ExtraNet two months before the respective validity date of the bank sort code file. The IBAN rules were introduced because of SEPA in order to convert the master data (convert the account number and bank sort code to the IBAN). From 21 November 2016 their A Basic Bank Account Number (BBAN) is the last part of an IBAN that comes after the country code and check digits. The BBAN can be up to 30 digits and is country specific. In Germany, the BBAN is 18 digits, made up of the bank/sort code and account number. You need the full IBAN to make an international money transfer. There are 4 ways to find out your IBAN and BIC or SWIFT code if you're with HSBC. 1. The quickest and easiest is by logging on to our mobile banking app or online banking. Just follow these steps: You'll see your IBAN and BIC or SWIFT code on the right side of the statement above the transaction list. 2. Dsl1Vv.