🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS49544, 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#

112 days
12121313132026-07-012026-08-252026-10-20
12 latest-1 over 112 days

Active .dk domains whose website address (A record) is announced by AS49544, counted once a day.

🌐 AS49544 at a glance#

i3D.net B.V

AS49544 is announced by i3D.net B.V (The Netherlands) and currently hosts 12 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 10 unique IPv4 addresses on this network, and the domains currently sit in 6 IPv4 CIDR blocks covering roughly 26.4 thousand addresses of IPv4 space.

IPv6 is live here too: 4 domains (33.3%) publish AAAA records from this AS, resolving to 3 unique IPv6 addresses across 1 prefix (about 34.4 billion /64 networks of space).

The network is part of the .dk zone's infrastructure too: 5 distinct nameservers and 10 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 2 of the domains hosted here (16.7%) 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 AS49544#

via ipbot.dk

i3D.net B.V announces 190 prefixes (138 IPv4, 52 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS3356Level 3 Parent, LLC
100.0%
AS2914NTT-DATA-2914 - NTT America, Inc.
80.8%
AS6939Hurricane Electric LLC
26.6%
AS1299TWELVE99 Arelion Sweden AB
21.3%
AS12956TELXIUS TELEFONICA GLOBAL SOLUTIONS SL
16.5%
AS3491PCCWG-APAC-HK - PCCW Global (HK) Ltd.
9.8%
AS9002RETN Limited
7.4%
AS9498BBIL-AP - BHARTI Airtel Ltd.
2.7%
AS7195EDGEUNO S.A.S
2.3%
AS3216SOVAM-AS PJSC "Vimpelcom"
1.9%

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

🔻 Networks using AS49544 as upstream#

8 networks
NetworkNameDomainsPower
AS48283SIDN-ANYCAST Stichting Internet Domeinregistratie Nederland—
100.0%
AS205316Supporta Interactiva B.V.23
91.2%
AS62370Snel.com B.V.—
90.4%
AS56851VPS-UA-AS PE Skurykhin Mukola Volodumurovuch—
78.5%
AS20756NAMESHIELD SAS499
50.1%
AS209453GANDI-LIVEDNS GANDI SAS—
37.4%
AS209510NAMESHIELDGRP NAMESHIELD SAS127
30.3%
AS1921RCODEZERO-ANYCAST-SEC1-TLD ipcom GmbH—
18.1%

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#

7 CIDRs

🧭 Nameservers in this AS#

5 hosts

📮 Mail Exchangers in this AS#

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