🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS205206, 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.

📈 Domains over time#

108 days
5,6705,7105,7505,7895,8292026-07-012026-08-232026-10-16
5,818 latest+134 over 108 days

Active .dk domains whose website address (A record) is announced by AS205206, counted once a day.

🌐 AS205206 at a glance#

Netsite A/S

AS205206 is announced by Netsite A/S (Denmark) and currently hosts 5,819 .dk domains in our dataset — 0.44% of all scanned .dk domains. Across all our scans we have observed 22 unique IPv4 addresses on this network, and the domains currently sit in 3 IPv4 CIDR blocks covering roughly 1.8 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: 1 distinct nameserver and 38 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 5,790 of the domains hosted here (99.5%) 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.

🛰️ Upstream providers of AS205206#

via ipbot.dk

Netsite A/S announces 4 prefixes (3 IPv4, 1 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS1299TWELVE99 Arelion Sweden AB
100.0%
AS6939Hurricane Electric LLC
37.7%
AS33891Core-Backbone GmbH
20.8%
AS37468Angola Cables
2.8%
AS20485TRANSTELECOM Joint Stock Company TransTeleCom
1.7%
AS137409GSLNETWORKS-AS-AP - GSL Networks Pty LTD
1.2%
AS5405INTERDOTLINK Inter.link GmbH
0.8%
AS3303Swisscom (Schweiz) AG
0.7%
AS7713telkomnet-as-ap - PT Telekomunikasi Indonesia
0.7%
AS20764RASCOM-AS CJSC RASCOM
0.6%

Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.

📡 Known CIDRs#

3 CIDRs

🧭 Nameservers in this AS#

1 host
HostnameDomains
ns1.netsite.dk 6,378

📮 Mail Exchangers in this AS#

38 hosts
dhd.dk [/] search Domains, Hosts & DNS — .dk zone