🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS203201, 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#

109 days
011222026-07-012026-08-242026-10-17
1 latest0 over 109 days

Active .dk domains whose website address (A record) is announced by AS203201, counted once a day.

🌐 AS203201 at a glance#

Infrastructure Italia Colo S.r.l.

AS203201 is announced by Infrastructure Italia Colo S.r.l. (Italy) and currently hosts 1 .dk domain in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 1 unique IPv4 address on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 1 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 no mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 0 of the domains hosted here (0.0%) 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.

🛰️ Upstream providers of AS203201#

via ipbot.dk

IT-SUPERNAP INFRASTRUCTURE ITALIA COLO S.R.L. announces 15 prefixes (14 IPv4, 1 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS1267ASN-WINDTRE WIND TRE S.P.A.
100.0%
AS1299TWELVE99 Arelion Sweden AB
61.4%
AS28716Retelit Digital Services S.p.A.
18.2%
AS6939Hurricane Electric LLC
12.0%
AS3356Level 3 Parent, LLC
10.3%
AS6762SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.
10.0%
AS8220COLT Technology Services Group Limited
5.4%
AS8218NEO-ASN Zayo Infrastructure France SA
0.9%
AS24482SGGS-AS-AP - SG.GS
0.7%
AS33891Core-Backbone GmbH
0.7%

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

🔻 Networks using AS203201 as upstream#

1 network
NetworkNameDomainsPower
AS39825NEEN-ASN NEEN S.p.A—
100.0%

Among the networks we hold ipbot.dk routing data for (the ones looked up on this site), so this is a sample of the AS's customers, not all of them.

Found 1 domain matching 203201
DomainIPASNISP / OrgCountry
cavel.dk 185.145.195.19 AS203201 Infrastructure Italia Colo S.r.l. 🇮🇹 Italy

📡 Known CIDRs#

1 CIDR
CIDRDomains
185.145.192.0/22 1

🧭 Nameservers in this AS#

1 host
HostnameDomains
ns2.webme.it 1
dhd.dk [/] search Domains, Hosts & DNS — .dk zone