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.
First of all, the British Pounds and Sterling is the same currency, just two different names on the same baby. British Pounds are used in England, Scotland and in Northern Ireland. But, when travelling to Ireland the currency changes, and in Ireland and in Dublin Euro is the currency to be used. These differences are useful to keep in mind, especially if you are on a day trip from Belfast to Dublin, or if you plan on travelling from Dublin to Belfast, or maybe from Dublin to Liverpool.