Fwd: Amount of announced IPv4-space by ASN not announcing IPv6?

[Emile Aben]

On 13/08/2013 09:45, Валерий Солдатов wrote:
> Hello,
> today I see ~ 13,570 IPv6 routes in BGP table.
> Assuming that most of AS'es announce only 1 IPv6 prefix, and estimating no. of AS is 63,300 now, I estimate that 21% of AS announce IPv6-routes. Is it correct?

Hi Valeriy,

I get to 16.6% ( http://v6asns.ripe.net/v/6 ) of ASes announcing 1 or
more IPv6 prefix based on RIS data.

best,
Emile Aben
RIPE NCC


> 
> --------------------------------
> Valeriy Soldatov, Best Telecom ISP, Moscow, Russia.
> 
> 
> 
> 
> For 1 Aug 2013 I found that about 70% of IPv4 address space is announced
> by ASNs which also announce IPv6 address space.
> Short RIPE Labs article about it:
> https://labs.ripe.net/Members/emileaben/ipv6-asns-size-matters
> 
> regards,
> Emile Aben
> RIPE NCC
>