Every .dk domain whose website address (A record) is announced by AS16246, 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.
O2 Czech Republic, a.s. announces 15 prefixes (13 IPv4, 2 IPv6) and reaches the internet through 2 upstream networks.
| Upstream | Name | Power |
|---|---|---|
| AS5610 | O2 Czech Republic, a.s. | |
| AS12570 | ITSELF O2 Czech Republic, a.s. |
Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.