🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS43806, 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
28282929292026-07-012026-08-242026-10-18
28 latest-1 over 110 days

Active .dk domains whose website address (A record) is announced by AS43806, counted once a day.

🌐 AS43806 at a glance#

Region Sjaelland

AS43806 is announced by Region Sjaelland (Denmark) and currently hosts 28 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 6 unique IPv4 addresses on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 256 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: 2 distinct nameservers and 2 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 AS43806#

via ipbot.dk

DK-REGSJ Region Sjaelland announces 2 prefixes (2 IPv4, 0 IPv6) and reaches the internet through 1 upstream network.

UpstreamNamePower
AS31027GlobalConnect A/S
100.0%

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

Found 28 domains matching 43806
DomainIPASNISP / OrgCountry
befolkningsundersoegelsen.dk 91.198.168.19 AS43806 Region Sjaelland 🇩🇰 Denmark
blodproevebooking.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
blodprøvetid.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
ehospitalet.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
jobidns.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
koege-sygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
koegesygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
naerklinik.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
naestved-sygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
naestvedsygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
nykoebingf-sygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
nykoebingfsygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
nærklinik.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
praksisdatabasen.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
praksisinformation.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
pro-grez.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
psykiatrisygehus-slagelse.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
regionsjaelland-bloddonor.dk 91.198.168.212 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
ringsted-sygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
ringstedsygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
roskilde-sygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
sclerosehospital.dk 91.198.168.75 AS43806 Region Sjaelland 🇩🇰 Denmark
sclerosehospitalet.dk 91.198.168.75 AS43806 Region Sjaelland 🇩🇰 Denmark
slagelse-sygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
slagelsesygehus.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
tophotline.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
tænksomatikkenmed.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark
zuh.dk 91.198.168.37 +1 AS43806 Region Sjaelland 🇩🇰 Denmark

📡 Known CIDRs#

1 CIDR
CIDRDomains
91.198.168.0/24 28

🧭 Nameservers in this AS#

2 hosts
HostnameDomains
ns1.regsj.dk 108
ns2.regsj.dk 108

📮 Mail Exchangers in this AS#

2 hosts
HostnameDomains
smtp1.regsj.dk 2
smtp2.regsj.dk 2
dhd.dk [/] search Domains, Hosts & DNS — .dk zone