🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS21221, 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#

110 days
37373839392026-07-012026-08-242026-10-18
38 latest0 over 110 days

Active .dk domains whose website address (A record) is announced by AS21221, counted once a day.

🌐 AS21221 at a glance#

Infopact Netwerkdiensten B.V.

AS21221 is announced by Infopact Netwerkdiensten B.V. (The Netherlands) and currently hosts 38 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 20 unique IPv4 addresses on this network, and the domains currently sit in 4 IPv4 CIDR blocks covering roughly 6.7 thousand addresses of IPv4 space.

IPv6 is live here too: 3 domains (7.9%) publish AAAA records from this AS, resolving to 3 unique IPv6 addresses across 2 prefixes (about 8.6 billion /64 networks of space).

The network is part of the .dk zone's infrastructure too: 18 distinct nameservers and 16 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 AS21221#

via ipbot.dk

Infopact Netwerkdiensten B.V. announces 37 prefixes (28 IPv4, 9 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS20562OPEN-PEERING-AS Broadband Hosting B.V.
100.0%
AS174Cogent Communications, LLC
43.2%
AS6939Hurricane Electric LLC
29.5%
AS24785JOINTTRANSIT-AS Broadband Hosting B.V.
26.1%
AS50304Blix Solutions AS
2.8%
AS9002RETN Limited
2.8%
AS25091IP-Max SA
2.3%
AS20485TRANSTELECOM Joint Stock Company TransTeleCom
1.7%
AS29632NASSIST-AS Netassist International EOOD
1.7%
AS5405INTERDOTLINK Inter.link GmbH
1.7%

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

Found 38 domains matching 21221
DomainIPASNISP / OrgCountry
12linkme.dk 2.56.226.18 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
allflex-nordic.dk 82.150.141.84 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
architectsoftaste.dk 217.18.75.155 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
audipack.dk 217.18.75.230 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
avaxaplants.dk 217.18.77.28 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
battalyan.dk 82.150.141.237 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
battalyans.dk 82.150.141.237 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
bokwa.dk 82.150.140.11 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
bokwafitness.dk 82.150.140.11 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
bokwashop.dk 82.150.140.11 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
bokwawear.dk 82.150.140.11 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
bonferia.dk 217.18.78.102 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
bttlns.dk 82.150.141.237 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
calex-holland.dk 217.18.74.34 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
crddix.dk 82.150.141.237 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
dancontact.dk 185.214.148.56 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
doorpro.dk 217.18.70.175 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
fatphillsdiner.dk 217.18.79.54 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
getablast.dk 217.18.75.155 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
heras-mobile.dk 185.214.148.43 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
herassafety.dk 185.214.148.43 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
hocoparts.dk 217.18.75.12 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
infopact.dk 217.18.79.54 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
joerns.dk 217.18.75.155 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
kaldi.dk 217.18.65.30 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
mobilhegn.dk 185.214.148.43 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
ninaharlow.dk 82.150.140.68 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
noisebarrier.dk 217.18.70.54 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
nucclr.dk 82.150.141.237 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
railpro.dk 82.150.140.11 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
ride100percent.dk 217.18.75.12 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
rousch.dk 217.18.64.13 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
shotseurope.dk 217.18.65.30 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
simedarbyoils.dk 217.18.79.54 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
stonehard.dk 82.150.140.37 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
tapasclub.dk 185.214.148.59 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
triathlon24.dk 82.150.141.237 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands
woau.dk 185.214.148.56 AS21221 Infopact Netwerkdiensten B.V. 🇳🇱 The Netherlands

📡 Known CIDRs#

6 CIDRs

🧭 Nameservers in this AS#

18 hosts

📮 Mail Exchangers in this AS#

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