This page lists the external Overlay Networks DN42 is connected to

Network v4 v6 TLDs Remarks
NeoNetwork X X .neo  
ICVPN X X see ICVPN-Meta ICVPN ("Inter City Vpn") is where many Freifunk communities interconnect with each other
ChaosVPN X   .hack some peers does not allow 172.31.0.0/16
CRXN   X .crxn In progress