Every .dk domain whose website address (A record) is announced by AS3561, 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 AS3561, counted once a day.
AS3561 is announced by CenturyLink Communications, LLC (United States) and currently hosts 40 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 18 unique IPv4 addresses on this network, and the domains currently sit in 16 IPv4 CIDR blocks covering roughly 121.9 thousand addresses of IPv4 space.
We have yet to observe any IPv6 (AAAA) hosting on this AS.
The network is part of the .dk zone's infrastructure too: 9 distinct nameservers and 1 distinct mail exchanger serving .dk domains currently resolve to addresses announced by this AS.
On the security side, 3 of the domains hosted here (7.5%) validate as DNSSEC-secure — below 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.
CENTURYLINK-LEGACY-SAVVIS - CenturyLink Communications, LLC announces 651 prefixes (650 IPv4, 1 IPv6) and reaches the internet through 3 upstream networks.
| Upstream | Name | Power |
|---|---|---|
| AS3356 | Level 3 Parent, LLC | |
| AS209 | CENTURYLINK-US-LEGACY-QWEST - CenturyLink Communications, LLC | |
| AS3910 | CENTURYLINK-EUROPE-LEGACY-QWEST - CenturyLink Communications, LLC |
Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.
| CIDR | Domains |
|---|---|
| 209.67.0.0/17 | 15 |
| 64.89.32.0/20 | 4 |
| 213.174.192.0/19 | 3 |
| 216.35.128.0/18 | 3 |
| 207.82.64.0/20 | 2 |
| 216.64.208.0/22 | 2 |
| 206.128.144.0/20 | 2 |
| 64.209.224.0/20 | 1 |
| 205.216.56.0/21 | 1 |
| 206.155.80.0/20 | 1 |
| 64.15.192.0/20 | 1 |
| 216.35.208.0/20 | 1 |
| 207.82.96.0/19 | 1 |
| 204.71.0.0/18 | 1 |
| 64.14.80.0/20 | 1 |
| 72.35.16.0/20 | 1 |
| Hostname | Domains |
|---|---|
| dns01.bcdtravel.sg | 7 |
| ns1.savvis.net | 6 |
| ns2.savvis.net | 6 |
| ns3.savvis.net | 6 |
| ns4.savvis.net | 5 |
| ns5.savvis.net | 5 |
| ns6.savvis.net | 3 |
| ns6a.savvis.net | 3 |
| ns.bigfootinteractive.com | 1 |
| Hostname | Domains |
|---|---|
| mail2.siteamerica.com | 7 |