Every .dk domain whose website address (A record) is announced by AS8501, 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.
PIONIER-AS Institute of Bioorganic Chemistry Polish Academy of Science, Poznan Supercomputing and Networking Center announces 8 prefixes (7 IPv4, 1 IPv6) and reaches the internet through 9 upstream networks.
| Upstream | Name | Power |
|---|---|---|
| AS2603 | NORDUnet | |
| AS3356 | Level 3 Parent, LLC | |
| AS174 | Cogent Communications, LLC | |
| AS21320 | GEANT_IAS_VRF GEANT Vereniging | |
| AS1853 | ACONET | |
| AS20965 | GEANT Vereniging | |
| AS1103 | SURFNET-NL SURF B.V. | |
| AS2907 | SINET-AS - Research Organization of Information and Systems, National Institute of Informatics | |
| AS2607 | SANET Zdruzenie pouzivatelov Slovenskej akademickej datovej siete SANET |
Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.