🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS13009, 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
112332026-07-012026-08-242026-10-18
2 latest0 over 110 days

Active .dk domains whose website address (A record) is announced by AS13009, counted once a day.

🌐 AS13009 at a glance#

Redcentric Solutions Ltd

AS13009 is announced by Redcentric Solutions Ltd (United Kingdom) and currently hosts 2 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 2 unique IPv4 addresses on this network, and the domains currently sit in 2 IPv4 CIDR blocks covering roughly 8.4 thousand addresses of IPv4 space.

We have yet to observe any IPv6 (AAAA) hosting on this AS.

We have not observed any nameservers or mail exchangers for .dk domains on this AS — the domains hosted here run their DNS and mail from other networks.

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 AS13009#

via ipbot.dk

VDATA Redcentric Solutions Ltd announces 30 prefixes (28 IPv4, 2 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS174Cogent Communications, LLC
100.0%
AS6939Hurricane Electric LLC
66.4%
AS3356Level 3 Parent, LLC
51.5%
AS6461Zayo Bandwidth
5.5%
AS25091IP-Max SA
5.4%
AS33891Core-Backbone GmbH
3.8%
AS34549meerfarbig GmbH & Co. KG
3.7%
AS35280F5 F5 Networks SARL
3.6%
AS5405INTERDOTLINK Inter.link GmbH
2.6%
AS8220COLT Technology Services Group Limited
2.3%

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

🔻 Networks using AS13009 as upstream#

3 networks
NetworkNameDomainsPower
AS31463FourD-AS Redcentric Solutions Ltd—
100.0%
AS15533SASEUROPE Redcentric Solutions Ltd—
72.4%
AS8419HOTCHILLI Redcentric Solutions Ltd—
19.6%

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#

2 CIDRs
dhd.dk [/] search Domains, Hosts & DNS — .dk zone