Counter claim by Daniel Karrenberg (a co-author of RFC1918) :
"10/8: the ARPANET had just been turned off. One of us suggested it and Jon considered this a good re-use of this "historical" address block. We also suspected that "net 10" might have been hard coded in some places, so re-using it for private address space rather than in inter-AS routing might have the slight advantage of keeping such silliness local.
172.16/12: the lowest unallocated /12 in class B space.
192.168/16: the lowest unallocated /16 in class C block 192/8.
In summary: IANA allocated this space just as it would have for any other purpose. As the IANA, Jon was very consistent unless there was a really good reason to be creative."
https://web.archive.org/web/20190308152212/https://mailman.nanog.org/pipermail/nanog/2017-October/092636.html
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