🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS9123, 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
223442026-07-012026-08-242026-10-18
4 latest0 over 110 days

Active .dk domains whose website address (A record) is announced by AS9123, counted once a day.

🌐 AS9123 at a glance#

Jsc timeweb

AS9123 is announced by Jsc timeweb (Russia) and currently hosts 4 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 3 unique IPv4 addresses on this network, and the domains currently sit in 2 IPv4 CIDR blocks covering roughly 1.5 thousand addresses of IPv4 space.

IPv6 is live here too: 1 domain (25.0%) publish AAAA records from this AS, resolving to 1 unique IPv6 address across 1 prefix (about 1 million /64 networks of space).

The network is part of the .dk zone's infrastructure too: 4 distinct nameservers and 2 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 AS9123#

via ipbot.dk

TimeWeb-AS JSC "TIMEWEB" announces 952 prefixes (924 IPv4, 28 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS12389ROSTELECOM-AS PJSC Rostelecom
100.0%
AS9002RETN Limited
52.8%
AS57304RETNRU-AS JSC "RetnNet"
44.3%
AS1299TWELVE99 Arelion Sweden AB
42.0%
AS20764RASCOM-AS CJSC RASCOM
30.0%
AS59692IQWeb FZ-LLC
23.7%
AS174Cogent Communications, LLC
22.9%
AS8359MTS PJSC
20.8%
AS3216SOVAM-AS PJSC "Vimpelcom"
16.3%
AS50509Transroute Telecom LTD
14.0%

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

📡 Known CIDRs#

3 CIDRs

🧭 Nameservers in this AS#

4 hosts

📮 Mail Exchangers in this AS#

2 hosts
HostnameDomains
mx1.timeweb.ru 2
mx2.timeweb.ru 2
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