Every PoP had its own subdomain within 6NET. The subdomain name corresponded to the top level domain name of the country where the PoP was located. The following names were defined domains:

at – Austria
be – Belgium
ch – Switzerland
cz – Czech Republic
de – Germany
es – Spain
fr – France
gr – Greece
hu – Hungary
ie – Ireland
it – Italy
lu – Luxemburg
nl – The Netherlands
pl – Poland
pt – Portugal
se – Sweden
si – Slovenia
sk – Slovakia
uk – United Kingdom

All domain names in the 6NET backbone belonged to equipment located in the above PoPs, thus all the names had a suffix from the list and were prepended to the common suffix ‘6net.org’.