[tialaramex]

If you're thinking about IPv4 then I'm afraid that ship has long sailed. IANA exhaustion occurred in 2011, there aren't any IPv4 addresses left to be assigned by IANA. If your region did a poor job of allocating its blocks, take that up with them, it's not IANA's fault.

For IPv6 there is plenty of space and if you have a real use for more than a /48 then you can write up the paperwork for why you need so much space and get it approved, you don't need IANA, whether in Switzerland or anywhere else.