🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS20712, 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
011222026-07-012026-08-242026-10-18
1 latest0 over 110 days

Active .dk domains whose website address (A record) is announced by AS20712, counted once a day.

🌐 AS20712 at a glance#

Andrews & Arnold Ltd

AS20712 is announced by Andrews & Arnold Ltd (United Kingdom) 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 8.2 thousand addresses of IPv4 space.

IPv6 is live here too: 1 domain (100.0%) publish AAAA records from this AS, resolving to 1 unique IPv6 address 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 4 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 AS20712#

via ipbot.dk

Andrews & Arnold Ltd announces 108 prefixes (87 IPv4, 21 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS1299TWELVE99 Arelion Sweden AB
100.0%
AS6939Hurricane Electric LLC
66.8%
AS174Cogent Communications, LLC
65.7%
AS2914NTT-DATA-2914 - NTT America, Inc.
55.3%
AS12703Pulsant (Scotland) Ltd
16.0%
AS25091IP-Max SA
11.1%
AS34549meerfarbig GmbH & Co. KG
5.7%
AS13030Init7 (Switzerland) Ltd.
4.3%
AS8218NEO-ASN Zayo Infrastructure France SA
3.9%
AS34927iFog GmbH
3.8%

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

Found 1 domain matching 20712
DomainIPASNISP / OrgCountry
nat64.dk 81.187.84.197 AS20712 Andrews & Arnold Ltd 🇬🇧 United Kingdom

📡 Known CIDRs#

2 CIDRs

🧭 Nameservers in this AS#

2 hosts
HostnameDomains
ns2.kasperd.dk 12
ns2.kasperd.net 12

📮 Mail Exchangers in this AS#

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