🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS33828, 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#

111 days
556772026-07-012026-08-252026-10-19
6 latest0 over 111 days

Active .dk domains whose website address (A record) is announced by AS33828, counted once a day.

🌐 AS33828 at a glance#

iptoX GmbH

AS33828 is announced by iptoX GmbH (Germany) and currently hosts 6 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 5 unique IPv4 addresses on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 2 thousand addresses of IPv4 space.

IPv6 is live here too: 1 domain (16.7%) publish AAAA records from this AS, resolving to 2 unique IPv6 addresses across 1 prefix (about 4.3 billion /64 networks of space).

The network is part of the .dk zone's infrastructure too: no nameservers and 4 distinct 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 AS33828#

via ipbot.dk

iptoX GmbH announces 4 prefixes (3 IPv4, 1 IPv6) and reaches the internet through 2 upstream networks.

UpstreamNamePower
AS3356Level 3 Parent, LLC
100.0%
AS174Cogent Communications, LLC
80.3%

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

📡 Known CIDRs#

2 CIDRs

📮 Mail Exchangers in this AS#

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