🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS20904, 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#

Not enough history to chart yet — this series is collected once a day. Check back tomorrow.

🛰️ Upstream providers of AS20904#

via ipbot.dk

Netplaza-AS Cinia Oy announces 22 prefixes (19 IPv4, 3 IPv6) and reaches the internet through 7 upstream networks.

UpstreamNamePower
AS1299TWELVE99 Arelion Sweden AB
100.0%
AS174Cogent Communications, LLC
86.0%
AS6939Hurricane Electric LLC
49.9%
AS39351ESAB-AS 31173 Services AB
2.0%
AS50304Blix Solutions AS
1.9%
AS12552GlobalConnect AB
1.0%
AS42708Glesys AB
1.0%

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

🔻 Networks using AS20904 as upstream#

1 network
NetworkNameDomainsPower
AS51691F-Solutions Oy—
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 0 domains matching 20904
🔍
No results found in the database.
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