🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS47302, 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#

111 days
11111212122026-07-012026-08-252026-10-19
11 latest0 over 111 days

Active .dk domains whose website address (A record) is announced by AS47302, counted once a day.

🌐 AS47302 at a glance#

cyon AG

AS47302 is announced by cyon AG (Switzerland) and currently hosts 11 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 11 unique IPv4 addresses on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 2 thousand addresses of IPv4 space.

IPv6 is live here too: 10 domains (90.9%) publish AAAA records from this AS, resolving to 10 unique IPv6 addresses across 1 prefix (about 4.3 billion /64 networks of space).

The network is part of the .dk zone's infrastructure too: 2 distinct nameservers and 7 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 AS47302#

via ipbot.dk

cyon AG announces 7 prefixes (5 IPv4, 2 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS13030Init7 (Switzerland) Ltd.
100.0%
AS33891Core-Backbone GmbH
100.0%
AS3303Swisscom (Schweiz) AG
60.0%
AS6939Hurricane Electric LLC
52.0%
AS9002RETN Limited
6.0%
AS34019Hivane Association
4.0%
AS24961MYLOC-AS WIIT AG
2.0%
AS34177Celeste SAS
2.0%
AS39351ESAB-AS 31173 Services AB
2.0%
AS47147AS-ANX Anexia Cloud Solutions GmbH
2.0%

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

📡 Known CIDRs#

2 CIDRs

🧭 Nameservers in this AS#

2 hosts
HostnameDomains
ns1.cyon.ch 9
ns2.cyon.ch 9

📮 Mail Exchangers in this AS#

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