Every .dk domain whose website address (A record) is announced by AS20965, with the network's IPv6 and DNSSEC adoption and its observed prefixes. An autonomous system is the routing identity of a hosting company or ISP. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.
GEANT Vereniging announces 3 prefixes (1 IPv4, 2 IPv6) and reaches the internet through 10 upstream networks.
| Upstream | Name | Power |
|---|---|---|
| AS559 | SWITCH | |
| AS1103 | SURFNET-NL SURF B.V. | |
| AS1853 | ACONET | |
| AS24490 | TEIN2-SG-AP - Trans-Eurasia Information Network (TEIN2) - SG | |
| AS11537 | INTERNET2-RESEARCH-EDU - Internet2 | |
| AS21320 | GEANT_IAS_VRF GEANT Vereniging | |
| AS2907 | SINET-AS - Research Organization of Information and Systems, National Institute of Informatics | |
| AS7575 | AARNET-AS-AP - Australian Academic and Research Network (AARNet) | |
| AS9885 | NKN-INTERNET-GW - NKN INTERNET GATEWAY NETWORK | |
| AS36944 | Ubuntunet Alliance For Research and Education Networking |
Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.