Every .dk domain whose website address (A record) is announced by AS24800, 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.
Active .dk domains whose website address (A record) is announced by AS24800, counted once a day.
AS24800 is announced by BornFiber Service Provider ApS (Denmark) and currently hosts 157 .dk domains in our dataset — 0.01% of all scanned .dk domains. Across all our scans we have observed 57 unique IPv4 addresses on this network, and the domains currently sit in 7 IPv4 CIDR blocks covering roughly 7.2 thousand addresses of IPv4 space.
IPv6 is live here too: 25 domains (15.9%) publish AAAA records from this AS, resolving to 9 unique IPv6 addresses across 2 prefixes (about 8.6 billion /64 networks of space).
The network is part of the .dk zone's infrastructure too: 5 distinct nameservers and 31 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.
On the security side, 113 of the domains hosted here (72.0%) validate as DNSSEC-secure — well above the zone-wide average for domains with a web address, 70.5%. See how this AS compares on the ASN statistics page, or drill into the CIDR list below the results.
BornFiber Service Provider ApS announces 13 prefixes (11 IPv4, 2 IPv6) and reaches the internet through 3 upstream networks.
| Upstream | Name | Power |
|---|---|---|
| AS3292 | TDC Holding A/S | |
| AS6939 | Hurricane Electric LLC | |
| AS20562 | OPEN-PEERING-AS Broadband Hosting B.V. |
Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.
| CIDR | Domains |
|---|---|
| 185.96.180.0/22 | 47 |
| 185.109.88.0/22 | 33 |
| 185.107.168.0/22 | 24 |
| 185.109.76.0/22 | 23 |
| 2a00:4820:0:0:0:0:0:0/32 | 22 |
| 185.107.176.0/22 | 18 |
| 185.109.64.0/22 | 6 |
| 185.108.108.0/22 | 6 |
| 2a00:4020:0:0:0:0:0:0/32 | 3 |
| Hostname | Domains |
|---|---|
| authns1.bornfiber.dk | 3 |
| authns2.bornfiber.dk | 3 |
| authns3.bornfiber.dk | 3 |
| authns4.bornfiber.dk | 3 |
| ns9.port53.dk | 2 |