IPv6 blocks for micro-allocation

Jeroen Massar jeroen at unfix.org
Tue Jun 3 18:21:46 CEST 2008

kura at iij.ad.jp wrote:
> Hello Jeroen,
> I have already checked the page, but the filters in the page are a
> little loose for our purpose.

First off, if you want it very narrow, just generate your filter from 
route6 objects in the RIR registries.

Another way is to use the stats files from the RIR's:


That would give you exactly the blocks which have been allocated.

Do note that there are quite a few /35's -> /32's and other such changes 
which are in the stats file as allocated first as /35 and then later as 
a /32.

Using route6 is a better way though and using something like S-BGP or 
other similar techniques is of course even better.


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