🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS42903, 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#

115 days
2122132152172182026-07-012026-08-272026-10-23
212 latest-4 over 115 days

Active .dk domains whose website address (A record) is announced by AS42903, counted once a day.

🌐 AS42903 at a glance#

Itm8 A/S

AS42903 is announced by Itm8 A/S (Denmark) and currently hosts 212 .dk domains in our dataset — 0.02% of all scanned .dk domains. Across all our scans we have observed 50 unique IPv4 addresses on this network, and the domains currently sit in 3 IPv4 CIDR blocks covering roughly 5.1 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: 5 distinct nameservers and 43 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 166 of the domains hosted here (78.3%) validate as DNSSEC-secure — well above 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 AS42903#

via ipbot.dk

Unknown announces 4 prefixes (3 IPv4, 1 IPv6) and reaches the internet through 2 upstream networks.

UpstreamNamePower
AS3292Unknown
100.0%
AS31027Unknown
18.8%

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

🔻 Networks using AS42903 as upstream#

1 network
NetworkNameDomainsPower
AS206749Scalepoint A/S—
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 212 domains matching 42903
DomainIPASNISP / OrgCountry
035.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
12u.dk 159.253.93.241 AS42903 Itm8 A/S 🇩🇰 Denmark
70120121.dk 77.75.82.232 AS42903 Itm8 A/S 🇩🇰 Denmark
aalborglærerforening.dk 185.193.123.231 AS42903 Itm8 A/S 🇩🇰 Denmark
aalf.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
adfaerdsprincipper.dk 159.253.90.249 AS42903 Itm8 A/S 🇩🇰 Denmark
aktindsigtshaandbogen.dk 185.193.122.107 AS42903 Itm8 A/S 🇩🇰 Denmark
aktindsigtshåndbogen.dk 185.193.122.41 AS42903 Itm8 A/S 🇩🇰 Denmark
allerødhørsholmlærerforening.dk 185.193.123.231 AS42903 Itm8 A/S 🇩🇰 Denmark
avant-garde.dk 77.75.82.181 AS42903 Itm8 A/S 🇩🇰 Denmark
bang-olufsenstore.dk 159.253.90.109 AS42903 Itm8 A/S 🇩🇰 Denmark
bangolufsenstore.dk 159.253.90.109 AS42903 Itm8 A/S 🇩🇰 Denmark
bettina-allan.dk 77.75.82.181 AS42903 Itm8 A/S 🇩🇰 Denmark
bjerre-madsen.dk 77.75.82.232 AS42903 Itm8 A/S 🇩🇰 Denmark
blfnet.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
bohn-willeberg.dk 77.75.82.181 AS42903 Itm8 A/S 🇩🇰 Denmark
caseinfo.dk 185.193.122.43 AS42903 Itm8 A/S 🇩🇰 Denmark
casestatus.dk 185.193.122.43 AS42903 Itm8 A/S 🇩🇰 Denmark
casys.dk 185.193.122.43 AS42903 Itm8 A/S 🇩🇰 Denmark
cloudstack.dk 77.75.81.160 AS42903 Itm8 A/S 🇩🇰 Denmark
consumereurope.dk 159.253.90.249 AS42903 Itm8 A/S 🇩🇰 Denmark
danish-fsa.dk 185.193.121.100 AS42903 Itm8 A/S 🇩🇰 Denmark
danishnaturalhazardscouncil.dk 159.253.90.249 AS42903 Itm8 A/S 🇩🇰 Denmark
de-la-motte.dk 77.75.82.181 AS42903 Itm8 A/S 🇩🇰 Denmark
digitaleudbud.dk 185.193.122.35 AS42903 Itm8 A/S 🇩🇰 Denmark
dinesager.dk 185.193.122.43 AS42903 Itm8 A/S 🇩🇰 Denmark
dlf-hillerod.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlf-skive.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlf116.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlf121.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlf122.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlf127.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlf153.dk 185.193.123.231 AS42903 Itm8 A/S 🇩🇰 Denmark
dlf37.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfhorsens.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfkreds10.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfkreds13.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfkreds14.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfkreds150.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfkreds29.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfkreds80.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfkreds9.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfodsherred.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfranders.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfskive.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dlfviborg.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
dls.dk 185.193.123.232 AS42903 Itm8 A/S 🇩🇰 Denmark
docufie.dk 185.193.122.35 AS42903 Itm8 A/S 🇩🇰 Denmark
docufy.dk 185.193.122.35 AS42903 Itm8 A/S 🇩🇰 Denmark
dus.dk 185.193.123.245 AS42903 Itm8 A/S 🇩🇰 Denmark

📡 Known CIDRs#

3 CIDRs

🧭 Nameservers in this AS#

5 hosts

📮 Mail Exchangers in this AS#

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