Modulus Checker is software developed by Ardbrook Limited and, with our unrivalled 25 year experience of the Irish Banking sector that enables the user to validate the accuracy of any sort code / bank account number combination, for the clearing banks within the Republic of Ireland and Northern Ireland; Credit Unions and most other non-associated banks. This is achieved by running in reverse the internal algorithms of each of the clearing banks on the sort code / bank account numbered entered. Each of the clearing banks within the Republic of Ireland has developed it’s own algorithms to validate the existence … Continue reading Modulus Checker