IANA supplies benchmarks on this topic. For IPv4, Here's what they have in their "special reason deal with registry". Which means, for our purposes, nearly anything in these tackle blocks should not be assigned given that they shouldn't be routable "publicly". Number945Number945 61711 gold badge55 silver badges99 bronze badges 1 https://mariooqgul.collectblogs.com/81354203/rumored-buzz-on-255-payday-loan