The 6NET locations that had a 6NET core router got their own prefixes. The 8 bits for the PoP part are used as follows:

00. core links
01. reserved core links
…
10. AT
11. BE
12. CH
13. CZ
14. DE
15. ES
16. FR
17. GR
18. HU
19. IE
20. IT
21. LU
22. NL
23. PL
24. PT
25. SE/NORDUNET
26. SI
27. SK
28. UK

Note: The start of the country PoP areas started at 10 for visual reasons when reading the IPv6 prefix addresses. The hexadecimal addresses A-F were not used. This gave the following prefixes for the PoPs:

The only ‘special’ address range, which is not really bound to a geographical location, is the ‘core’address range. This address range is used for the connections between PoPs.

The SLA (Site Level Aggregate) is used for various prefixes, (mostly) within a PoP:

Note: Using this convention there is room for 256 prefixes with /64 address space for each point topoint link or broadcast media.