Every .dk domain hosted inside the network 66.220.144.0/20, with the address, ASN and provider of each. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.
| CIDR | Reverse zone | Nameservers |
|---|---|---|
| 66.220.144.0/20 | 144.220.66.in-addr.arpa | a.ns.facebook.com b.ns.facebook.com c.ns.facebook.com d.ns.facebook.com |
The zone shown is the most specific level that answers an NS query, so a classless delegation may report its parent.