🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS9166, 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#

118 days
011222026-07-012026-08-282026-10-26
1 latest0 over 118 days

Active .dk domains whose website address (A record) is announced by AS9166, counted once a day.

🌐 AS9166 at a glance#

Cegeka Groep NV

AS9166 is announced by Cegeka Groep NV (Belgium) and currently hosts 1 .dk domain in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 1 unique IPv4 address on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 8.2 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: 1 distinct nameserver and 1 distinct mail exchanger 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 AS9166#

via ipbot.dk

CEGEKA-HASSELT Cegeka Groep NV announces 23 prefixes (14 IPv4, 9 IPv6) and reaches the internet through 3 upstream networks.

UpstreamNamePower
AS174Cogent Communications, LLC
100.0%
AS32787PROLEXIC-TECHNOLOGIES-DDOS-MITIGATION-NETWORK - Akamai Technologies, Inc.
64.5%
AS41008CEGEKA-GELEEN Cegeka Groep NV
61.7%

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

🔻 Networks using AS9166 as upstream#

1 network
NetworkNameDomainsPower
AS41008CEGEKA-GELEEN Cegeka Groep NV—
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 1 domain matching 9166
DomainIPASNISP / OrgCountry
umicore.dk 212.113.83.234 AS9166 Cegeka Groep NV 🇧🇪 Belgium

📡 Known CIDRs#

1 CIDR
CIDRDomains
212.113.64.0/19 1

🧭 Nameservers in this AS#

1 host
HostnameDomains
ns3.cegeka.be 1

📮 Mail Exchangers in this AS#

1 host
HostnameDomains
smtp11-in.cegeka.be 1
dhd.dk [/] search Domains, Hosts & DNS — .dk zone