Networks with IPv6 - One Year Later
Over a year ago, we developed an interactive graph showing the percentage of IPv6 enabled networks over time (starting in 2004). More precisely, it showed the percentage of Autonomous Systems (ASes) that announced one or more IPv6 prefixes in the global routing table. This tool was initially described in Interesting Graph - Networks with IPv6 Over Time on RIPE Labs.
Back when this article was posted, the percentage of ASes announcing one or more IPv6 prefixes in the five Regional Internet Registry (RIR) service regions were approximately:
- APNIC 10%
- RIPE NCC 8.5%
- LACNIC 8.5%
- AfriNIC 6%
- ARIN 5%.
Now more than a year later, we looked at the progress since then. In the image below you can see the current status in all regions (NOTE: When you click on the images it will bring you to the most up to date version of the graphs).
Figure 1: Percentage of IPv6 enabled networks in all RIR regions
The percentage of IPv6 enabled networks has increased in all regions. In the APNIC region close to 17% of all ASes announce one or more IPv6 prefixes, in the LacNIC and the RIPE NCC region between14 and 15%, in the AfriNIC 11.5% and in the ARIN region almost 10% of all networks are IPv6 enabled.
Now, the percentage of ASes announcing one or more IPv6 prefixes in the RIR regions are approximately:
- APNIC 17%
- LACNIC 15%
- RIPE NCC15%
- AfriNIC 12%
- ARIN 10%.
It is interesting to note that the graphs for most regions show some flattening after a rather steep increase earlier last year (around the time the IANA allocated the last IPv4 address space to the RIRs).
We then looked closer at the countries with the highest IPv6 penetration at the AS-level worldwide. In order to show comparable countries, we filtered out those countries with less then 50 ASes. The top 6 countries worldwide are shown in Figure 2.
A year ago, the Netherlands showed the highest percentage of IPv6 enabled networks with 31% and it is still growing strongly (now at 41%). But it has now clearly been surpassed by Norway which made a huge leap over the last year and especially since November 2011 and is now showing almost 50% of ASes in the country announce one or more IPv6 prefixes. It would be interesting to find out what caused this increase of IPv6 deployment in the country.
Note that 7 out of the top 10 countries are located in the RIPE NCC service region. It is also interesting that all Scandinavian countries are among the top 10 European countries and the top 12 worldwide.
% of IPv6 Enabled ASes
Number of ASes
Table 1: Top 20 countries showing highest IPv6 penetration at the AS level