[arin-ppml] ARIN-2011-5: Shared Transition Space for IPv4 Address Extension - Last Call

Martin Hannigan hannigan at gmail.com
Thu Apr 21 23:42:03 EDT 2011

On Thu, Apr 21, 2011 at 11:25 PM, Jimmy Hess <mysidia at gmail.com> wrote:
> On Thu, Apr 21, 2011 at 7:36 PM, Scott Leibrand <scottleibrand at gmail.com> wrote:
>> On Apr 19, 2011, at 2:25 PM, "George, Wes E IV [NTK]"
>> <Wesley.E.George at sprint.com> wrote:

[ clip ]

> That will begin to happen with the /10 reserved,  due to mathematical contraints
> applying to ISPs that need IP addresses, especially when the free pool becomes
> exhausted; using RFC1918 or /10 space becomes a more reliably,
> inexpensively  available option  than trying to find sources of
> sufficient global unique
> IPv4 addresses available by 8.3 transfer.

If 10 entities pooled their resources and acquired a legacy /10
through the transfer "process" the addresses would cost them about a
$1 each (@ $11.25 ea)  -- a one time fee. That's cheaper than what
your average sized member pays right now. (~$1.62 ea.) If they
amortized that resource over three years its even better.

OTOH, the replacement value of that /10 to the average sized member is
about $47M.



More information about the ARIN-PPML mailing list