🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS50673, 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
62636464652026-07-012026-08-242026-10-17
62 latest-3 over 109 days

Active .dk domains whose website address (A record) is announced by AS50673, counted once a day.

🌐 AS50673 at a glance#

Serverius Holding B.V.

AS50673 is announced by Serverius Holding B.V. (The Netherlands) and currently hosts 62 .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 11 IPv4 CIDR blocks covering roughly 22 thousand addresses of IPv4 space.

IPv6 is live here too: 3 domains (4.8%) publish AAAA records from this AS, resolving to 3 unique IPv6 addresses across 1 prefix (about 2.1 million /64 networks of space).

The network is part of the .dk zone's infrastructure too: 23 distinct nameservers and 13 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 39 of the domains hosted here (62.9%) 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 AS50673#

via ipbot.dk

Serverius Holding B.V. announces 86 prefixes (73 IPv4, 13 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS174Cogent Communications, LLC
100.0%
AS6939Hurricane Electric LLC
77.8%
AS33891Core-Backbone GmbH
63.9%
AS9002RETN Limited
29.5%
AS58057Securebit AG
26.3%
AS6453TATA COMMUNICATIONS (AMERICA) INC
18.2%
AS6830Liberty Global Europe Holding B.V.
17.2%
AS6762SEABONE-NET TELECOM ITALIA SPARKLE S.p.A.
9.9%
AS7195EDGEUNO S.A.S
8.9%
AS14840BR.Digital Telecom
6.6%

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

🔻 Networks using AS50673 as upstream#

57 networks
NetworkNameDomainsPower
AS202365Chronos Omer GOLGELI—
100.0%
AS174Cogent Communications, LLC173
68.8%
AS33891Core-Backbone GmbH—
9.8%
AS34872Servperso_Systems Sarah Rossius trading as Servperso Systems—
2.3%
AS58061Scalaxy B.V.31
1.2%
AS53356Free Range Cloud Hosting Inc.—
1.0%
AS200904FOXCLOUD LLP—
0.9%
AS51430AltusHost B.V.79
0.9%
AS133296WEBWERKS-AS-IN - Web Werks India Pvt. Ltd.—
0.7%
AS34971PDDA-AS CDLAN SpA—
0.5%
AS211895Serverius-Users-as Serverius Holding B.V.—
0.5%
AS61044SIT ExtraIP B.V.—
0.5%
AS206446CLOUD LEASE Ltd—
0.5%
AS61272IST-AS UAB Bacloud—
0.4%
AS31477Duocast B.V.46
0.3%
AS209622upress-drb uPress Inc—
0.3%
AS41960Nextpertise B.V.—
0.3%
AS62005BV-EU-AS BlueVPS OU—
0.3%
AS202448MVPS LTD—
0.3%
AS29869DOTBLOCK-3 - HostRocket.com, Inc.—
0.3%
AS31383NEDERLANDNET-AS Computel Standby BV—
0.3%
AS203815NL-Exa-AS Exa B.V.—
0.3%
AS55818MCIX-AS-AP MC-IX Matrix Internet Exchange RS-1—
0.3%
AS37153Xneelo (Pty) Ltd—
0.3%
AS61102Interhost Communication Solutions Ltd.—
0.3%
AS199081Lancom Ltd.—
0.2%
AS13246INETWIRE-AS Key-Systems GmbH102
0.2%
AS51247serveriotechnologijos-AS SkyCore Technologies L.L.C-FZ—
0.2%
AS45040ExtraIP B.V.—
0.2%
AS60299MMTS-AS Mezhdugorodnyaya Mezhdunarodnaya Telefonnaya Stanciya Ltd.—
0.1%
AS50509Transroute Telecom LTD—
0.1%
AS200651FlokiNET ehf—
0.1%
AS43298Storm Networks LLC—
0.1%
AS61049Exascale Ltd—
0.1%
AS215638AS-CILIX-LIMITED Cilix Limited—
0.1%
AS44858PROXSYS B.V.—
0.1%
AS8772NLineLLC NetAssist LLC—
0.1%
AS56655Gigahost AS23
0.1%
AS202675Keliweb S.R.L—
0.1%
AS9136Wobcom GmbH—
0.1%
AS216265ARISTO NETWORKS LTD—
0.1%
AS201814MEVSPACE sp. z o.o.—
0.1%
AS59900Balkan Internet Exchange Ltd—
0.0%
AS20647IPB Internet Provider in Berlin GmbH—
0.0%
AS211588XYPHEN Innovation Harbor B.V.—
0.0%
AS400587Ryamer, LLC—
0.0%
AS215551Sweden_Internet_Exchange KeFF Networks Ltd—
0.0%
AS9158TELENOR_DANMARK_AS Telenor A/S1,216
0.0%
AS48646STEFAN6 SDRmedia Verwaltungs GmbH—
0.0%
AS59545VXbits Vertixo BV—
0.0%
AS197731TUXIS The Internet Engineering Group B.V.—
0.0%
AS216246RU-AEZA-AS Aeza Group LLC—
0.0%
AS56654Infinity Telecom SRL—
0.0%
AS31673Uniserver Internet B.V.52
0.0%
AS15516DK-DANSKKABELTV DKTV A/S370
0.0%
AS48374GOBLER-AS MH HOLDING AF 1. JUNI 2009 ApS—
0.0%
AS198352Espresso Gridpoint BV—
0.0%

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 62 domains matching 50673
DomainIPASNISP / OrgCountry
a-towngospel.dk 46.249.47.191 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
annlønholdt.dk 93.158.220.90 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
antaras.dk 178.21.23.229 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestbefugtning.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestbinder.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestbindervæske.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestfiberbinder.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestfiberbindervaeske.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestfiberforsegler.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestfiberforsegling.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestforsegler.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestforsegling.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbeststoev.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbeststoevbinder.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbeststoevbindervaeske.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
asbestvaeske.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
barmaniapro.dk 185.116.164.83 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
befugtning.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
belung.dk 185.53.162.53 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
biovinyl.dk 194.107.76.84 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
bizzcloud.dk 178.21.19.222 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
carbagerun.dk 185.116.164.95 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
comforthotel.dk 185.193.216.19 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
dachre.dk 93.158.220.90 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
deboermarine.dk 5.178.70.28 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
djonny.dk 93.158.220.88 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
elementsofai.dk 185.193.216.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
er-der-fiberbundet.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
erderfiberbundet.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fiberbefugtning.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fiberbest.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fiberbinder.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fiberbindermetoden.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fiberbundet.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fiberfiksering.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fiberfixer.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fiberforsegling.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fiberprimer.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fixfiber.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
fixfibers.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
freesex.dk 91.220.37.236 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
gedser-remise.dk 93.158.220.88 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
iceroadrally.dk 185.116.164.95 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
kennel-lyng-labs.dk 93.158.220.90 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
kontinuerlig-sedimentering.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
kontinuerligsedimentering.dk 185.254.174.101 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
manouk.dk 91.199.167.204 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
naturalbulbs.dk 178.21.19.118 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
originalterbedst.dk 91.199.167.205 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands
oudshoorn.dk 5.178.70.185 AS50673 Serverius Holding B.V. 🇳🇱 The Netherlands

📡 Known CIDRs#

12 CIDRs

🧭 Nameservers in this AS#

23 hosts

📮 Mail Exchangers in this AS#

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