🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS209256, 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.

🌐 AS209256 at a glance

Straznet AB

AS209256 is announced by Straznet AB (Sweden) and currently hosts 1 .dk domain in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 1 unique IPv4 address on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 4.1 thousand 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: 2 distinct nameservers and 1 distinct mail exchanger 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 AS209256

via ipbot.dk

Straznet AB announces 2 prefixes (2 IPv4, 0 IPv6) and reaches the internet through 2 upstream networks.

UpstreamNamePower
AS8473Bahnhof AB
100.0%
AS8434TELENOR-SE Telenor Sverige AB
56.4%

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

Found 1 domain matching 209256
DomainIPASNISP / OrgCountry
olorin.dk 217.20.97.110 AS209256 Straznet AB 🇸🇪 Sweden

📡 Known CIDRs

1 CIDR
CIDRDomains
217.20.96.0/20 1

🧭 Nameservers in this AS

2 hosts
HostnameDomains
dns1.straznet.se 1
dns2.straznet.se 1

📮 Mail Exchangers in this AS

1 host
HostnameDomains
blackhole4.straz.net 1
dhd.dk [/] search Domains, Hosts & DNS — .dk zone