🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS41998, 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
334442026-07-012026-08-242026-10-17
4 latest+1 over 109 days

Active .dk domains whose website address (A record) is announced by AS41998, counted once a day.

🌐 AS41998 at a glance#

NetCom BW GmbH

AS41998 is announced by NetCom BW 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 4 unique IPv4 addresses on this network, and the domains currently sit in 2 IPv4 CIDR blocks covering roughly 12.3 thousand addresses of IPv4 space.

We have yet to observe any IPv6 (AAAA) hosting on this AS.

We have not observed any nameservers or mail exchangers for .dk domains on this AS — the domains hosted here run their DNS and mail from other networks.

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 AS41998#

via ipbot.dk

NetCom BW GmbH announces 67 prefixes (64 IPv4, 3 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS6939Hurricane Electric LLC
100.0%
AS33891Core-Backbone GmbH
67.5%
AS1299TWELVE99 Arelion Sweden AB
65.7%
AS34549meerfarbig GmbH & Co. KG
3.3%
AS13030Init7 (Switzerland) Ltd.
3.1%
AS3320DTAG Deutsche Telekom AG
3.1%
AS4230CLARO S.A.
2.9%
AS6057Administracion Nacional de Telecomunicaciones
2.3%
AS25091IP-Max SA
2.3%
AS29691Nine Internet Solutions AG
2.3%

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

🔻 Networks using AS41998 as upstream#

1 network
NetworkNameDomainsPower
AS30915Liebherr-IT Services 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
dhd.dk [/] search Domains, Hosts & DNS — .dk zone