Every .dk domain whose website address (A record) is announced by AS23520, 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.
LIBERTY-NETWORKS - Columbus Networks USA, Inc. announces 115 prefixes (113 IPv4, 2 IPv6) and reaches the internet through 10 upstream networks.
| Upstream | Name | Power |
|---|---|---|
| AS1299 | TWELVE99 Arelion Sweden AB | |
| AS6830 | Liberty Global Europe Holding B.V. | |
| AS174 | Cogent Communications, LLC | |
| AS6762 | SEABONE-NET TELECOM ITALIA SPARKLE S.p.A. | |
| AS3257 | GTT-BACKBONE GTT Communications Inc. | |
| AS3303 | Swisscom (Schweiz) AG | |
| AS64126 | DOMINICAN TELECOM PRIME, DTP, S.R.L. | |
| AS60068 | CDN77 Datacamp Limited | |
| AS22356 | Durand do Brasil Ltda | |
| AS286 | KPN GTT Communications Inc. |
Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.