🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS204922, 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
18181920202026-07-012026-08-242026-10-17
18 latest-1 over 109 days

Active .dk domains whose website address (A record) is announced by AS204922, counted once a day.

🌐 AS204922 at a glance#

Dustin A/S

AS204922 is announced by Dustin A/S (Denmark) and currently hosts 18 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 8 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: no nameservers and 1 distinct mail exchanger serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 13 of the domains hosted here (72.2%) 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 AS204922#

via ipbot.dk

DUSTIN-MS-DK Dustin A/S announces 3 prefixes (3 IPv4, 0 IPv6) and reaches the internet through 2 upstream networks.

UpstreamNamePower
AS31027GlobalConnect A/S
100.0%
AS3356Level 3 Parent, LLC
69.9%

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

🔻 Networks using AS204922 as upstream#

1 network
NetworkNameDomainsPower
AS41241DUSTIN-MS-DNS Dustin NL B.V.—
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.

📡 Known CIDRs#

1 CIDR
CIDRDomains
91.199.113.0/24 18

📮 Mail Exchangers in this AS#

1 host
HostnameDomains
mail.bilagservice.dk 1
dhd.dk [/] search Domains, Hosts & DNS — .dk zone