The "Inquiry IID" is an online search for master data of financial institutions as Swiss payment traffic participants.
SIX Interbank Clearing provides the following online services free of charge.
Inquiry IID (IID stands for Institution Identification, formerly: BC number)
Download Bank Master
The Bank Master in ASCII or Excel format is an extract of the daily updated Swiss Bank Master.
The electronic tool is most suitable for companies to calculate the IBANs of Swiss and Liechtenstein bank account numbers.
Easy online conversion of of Swiss & Liechtenstein bank account numbers into IBANs.
Swiss Payment Standards validation portal
The validation portal promotes the uniform application of the ISO 20022 standard for the customer-bank information exchange.
Information about the current operating status of the SIX Interbank Clearing systems.