🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS12931, 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#

114 days
334552026-07-012026-08-262026-10-22
4 latest0 over 114 days

Active .dk domains whose website address (A record) is announced by AS12931, counted once a day.

🌐 AS12931 at a glance#

IDKOM Networks GmbH

AS12931 is announced by IDKOM Networks GmbH (Germany) and currently hosts 4 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 3 unique IPv4 addresses on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 8.2 thousand addresses of IPv4 space.

IPv6 is live here too: 3 domains (75.0%) 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: 2 distinct nameservers and 2 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 AS12931#

via ipbot.dk

IDKOM Networks GmbH announces 3 prefixes (2 IPv4, 1 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS8767M-net Telekommunikations GmbH
100.0%
AS6939Hurricane Electric LLC
88.8%
AS3320DTAG Deutsche Telekom AG
27.5%
AS34019Hivane Association
3.4%
AS35625Eurofiber France SAS
3.4%
AS4230CLARO S.A.
2.8%
AS12779IT.Gate S.p.A.
2.2%
AS14840BR.Digital Telecom
2.2%
AS20764RASCOM-AS CJSC RASCOM
2.2%
AS24961MYLOC-AS WIIT AG
2.2%

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

🔻 Networks using AS12931 as upstream#

1 network
NetworkNameDomainsPower
AS21173ASN-LANTANA LANtana GmbH—
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.

📡 Known CIDRs#

2 CIDRs

🧭 Nameservers in this AS#

2 hosts

📮 Mail Exchangers in this AS#

2 hosts
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