IANA presents expectations on this topic. For IPv4, here is what they have got inside their "Unique reason tackle registry". Meaning, for our needs, everything in these address blocks shouldn't be assigned mainly because they should not be routable "publicly". Number945Number945 61711 gold badge55 silver badges99 bronze badges one one https://topeakd2smartgauge30505.elbloglibre.com/36716549/255-payday-loan-fundamentals-explained