It sounds like you need an International Transfer Code (ITC). Sometimes this is known as a SWIFT code.
Alternately, you may need the IBAN code.
Each of these codes specifically identifies the bank. You need to call the receiving bank and ask them for the SWIFT or IBAN code. SWIFT is more common.
If you are sending to Bank of America, for example, you need to know the SWIFT code for the specific branch because the bank is nationwide.
Hell you don't know anymore thatn I just ask you for
OK, Grandpa. Sorry, but I have no idea why you are asking if you know all the answers.