AS42541 is announced by Fiberby ApS (Denmark) and currently hosts 192 .dk domains in our dataset — 0.01% of all scanned .dk domains. Across all our scans we have observed 107 unique IPv4 addresses on this network, and the domains currently sit in 5 IPv4 CIDR blocks covering roughly 11 thousand addresses of IPv4 space.

IPv6 is live here too: 3 domains (1.6%) publish AAAA records from this AS, resolving to 3 unique IPv6 addresses across 1 prefix (about 34.4 billion /64 networks of space).

The network is part of the .dk zone's infrastructure too: 4 distinct nameservers and 58 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 144 of the domains hosted here (75.0%) validate as DNSSEC-secure — well above the zone-wide average of 62.8%. See how this AS compares on the ASN statistics page, or drill into the CIDR list below the results.