Classful IPv4 was obsoleted 32 years ago. Only 8 years left before it’s literally older than a standard career.
It’s fascinating the sheer inertia that leads formally-trained IT professionals to use and perpetuate such profoundly useless and obsolete nomenclature. You’d think that having an incorrect use of the term “class A” and not having any use for classes B and C would tip off academia that they should cordon off classful networking to the “History of Computing” course next to ARPANET.
Maybe next time someone refers to 10.0.0.0/8
as a Class A network I’ll refer to it as the ARPANET Network. That’s only very slightly more anachronistic (3 years).
That’s an ARIN block according to Wikipedia so North America, under Northen Telecom until 2010. It does look like Alibaba operate many networks under that
/8
, but I very much doubt it’s the whole/8
which would be worth a lot; a/16
is apparently worth around $3-4M, so a/8
can be extrapolated to be worth upwards of a billion dollars! I doubt they put all their eggs into that particular basket. So you’re probably matching a lot of innocent North American IPs with this.