ANSI issues IIN numbers. NCPDP issues the Processor ID Number (BIN). It is important to understand the difference between the IIN and NCPDP Processor ID Number (BIN) before applying for a Processor ID Number (BIN).
Using your money in Ireland: Northern Ireland and the Republic of Ireland have different currencies. In the Republic of Ireland the currency used is the Euro and in Northern Ireland the currency used is the Pound Sterling. The banks in Northern Ireland all issue their own notes and with this you may come across different variations in the notes. All coins are the same, irrespective of the bank from which they come.
The people of Ireland use both sterling and euro. Ireland is an island with two countries on it - the Republic of Ireland and Northern Ireland. The good people of the Republic (where Dublin is) use the euro. NI is in UK and uses sterling.