🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS51430, 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
77818589932026-07-012026-08-242026-10-18
79 latest-13 over 110 days

Active .dk domains whose website address (A record) is announced by AS51430, counted once a day.

🌐 AS51430 at a glance#

AltusHost B.V.

AS51430 is announced by AltusHost B.V. (The Netherlands) and currently hosts 79 .dk domains in our dataset — 0.01% of all scanned .dk domains. Across all our scans we have observed 9 unique IPv4 addresses on this network, and the domains currently sit in 5 IPv4 CIDR blocks covering roughly 13.3 thousand addresses of IPv4 space.

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

The network is part of the .dk zone's infrastructure too: 12 distinct nameservers and 60 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 3 of the domains hosted here (3.8%) 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 AS51430#

via ipbot.dk

AltusHost B.V. announces 76 prefixes (55 IPv4, 21 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS201789NETOPS B.V.
100.0%
AS50673Serverius Holding B.V.
67.8%
AS42708Glesys AB
53.9%
AS9002RETN Limited
32.6%
AS174Cogent Communications, LLC
10.5%
AS6939Hurricane Electric LLC
5.8%
AS34019Hivane Association
1.0%
AS25091IP-Max SA
0.7%
AS5405INTERDOTLINK Inter.link GmbH
0.7%
AS41441Speed-IX Serverius Holding B.V.
0.6%

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

🔻 Networks using AS51430 as upstream#

1 network
NetworkNameDomainsPower
AS45839SHINJIRU-MY-AS-AP - Shinjiru Technology Sdn Bhd—
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.

Found 79 domains matching 51430
DomainIPASNISP / OrgCountry
557north.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
afrikashorisonter.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
alexpetersen.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
asse.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
b2g.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
ballancedanmark.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
bellakvarter.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
benteogleif.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
bergship.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
binx.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
btgconsulting.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
carbeat.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
carsncolours.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
cmi.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
cms-experten.dk 185.10.57.74 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
covision.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
crustello.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
d3system.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
danmarkchat.dk 79.142.64.15 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
datenu.dk 79.142.64.15 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
devpeople.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
dkflirt.dk 79.142.64.15 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
ella-maliina.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
elskmig.dk 213.5.71.23 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
elskovshulen.dk 79.142.64.15 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
europabevaegelsen.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
europabevægelsen.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
eye-media.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
eyemedia.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
ficta.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
foggy.dk 79.142.64.15 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
glindorf.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
hahnhoj.dk 31.3.153.241 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
integrateddance.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
janmonrad.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
janneweidingerkristensen.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
jensfolkesanger.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
jgc-marketing.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
karintorndyb.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
kongelige.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
kragen.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
leifernstsen.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
lissa.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
lysbilledmager.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
lystportalen.dk 37.46.126.107 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
mabumo.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
mailsender2.dk 79.142.64.15 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
mastopower.dk 37.46.112.100 AS51430 AltusHost B.V. 🇳🇱 The Netherlands
minkpels.dk 37.46.121.212 AS51430 AltusHost B.V. 🇸🇪 Sweden
musikihaven.dk 213.5.71.219 AS51430 AltusHost B.V. 🇳🇱 The Netherlands

📡 Known CIDRs#

5 CIDRs

🧭 Nameservers in this AS#

12 hosts

📮 Mail Exchangers in this AS#

60 hosts, top 50 shown
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