IVP4, IVP6 Ehhh
I don't care what the network uses, it what I see and remember that counts to me.
All I want is human readable reference numbers
even if it was 000.000.000.000.000.000.000.000.000
it would still be easier than 3FB:57C:994:C65:923:3FB:57C:994:C65:923: etc
and class A, B & C address still exist in IVP6 anyway as do other reserved and special address allocations.