Companies using public IP space owned by others for internal routing

Richard rgolodner at
Sun Dec 17 22:42:48 CST 2017

On 12/17/2017 04:30 PM, Robert Webb wrote:
> Will anyone comment on the practice of large enterprises using non RFC1918 IP space that other entities are assigned by ARIN for internal routing?
> Just curious as to how wide spread this might be. I just heard of this happening with a large ISP and never really thought about it until now.
> Robert
     It is more common than you would think. Why use public IP's when 
you can have many rfc1918 options. Always amazes me after the initial 

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