[arin-ppml] AFRINIC And The Stability Of The Internet Number Registry System

Owen DeLong owen at delong.com
Wed Sep 1 14:50:06 EDT 2021

I won’t speak to ARIN’s current practice in case things have changed, but last I knew, and for many years, so long as the
least specific aggregate is announced within the ARIN region, out-of-region more specifics are not considered a problem.


> On Aug 31, 2021, at 19:00 , Michel Py via ARIN-PPML <arin-ppml at arin.net> wrote:
> Hi list and ARIN,
> I have a dumb question : under what conditions is it OK to use an ARIN IP address in another RIR region ?
> I have a specific situation in mind : a global organization (with physical infrastructure in all 5 RIRs) is using ARIN addresses in a country in the RIPE region (and most likely elsewhere).
> I do not want to point fingers, as I suspect that this is a quite common situation. But it is related to the subject at hand.
> Thanks for your enlightenment.
> Michel.
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