The Federal Office of Communications (OFCOM) is the authorised intermediary for the registration of IIN. It examines allocation requests and forwards them to the competent international body, the ITU-TSB. The ITU-TSB ensures that each IIN is assigned only once worldwide.
Do you have any questions or comments about the 'Request an Issuer Identifier Number (IIN)' service?
Contact us using the service Contact for questions about telecom services.