🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS55821, 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 AS55821#

via ipbot.dk

RADIUSTELECOMS-AS-AP - RADIUS TELECOMS, INC. announces 86 prefixes (59 IPv4, 27 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS4637ASN-TELSTRA-GLOBAL - Telstra Global
100.0%
AS174Cogent Communications, LLC
99.2%
AS2914NTT-DATA-2914 - NTT America, Inc.
75.4%
AS3356Level 3 Parent, LLC
43.7%
AS3491PCCWG-APAC-HK - PCCW Global (HK) Ltd.
36.4%
AS6939Hurricane Electric LLC
26.3%
AS63927RISE-HK - RISE
21.3%
AS701UUNET - Verizon Business
9.6%
AS6057Administracion Nacional de Telecomunicaciones
3.1%
AS24482SGGS-AS-AP - SG.GS
2.3%

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

🔻 Networks using AS55821 as upstream#

2 networks
NetworkNameDomainsPower
AS4779PHOPENIX-AS-PH - Philippine Open Internet Exchange—
100.0%
AS7629EPLDT-AS-AP - 5F L.V. Locsin Bldg—
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 55821
🔍
No results found in the database.

📮 Mail Exchangers in this AS#

2 hosts
HostnameDomains
mail.leo-pharma.com 1
mail1.leo-pharma.com 1
dhd.dk [/] search Domains, Hosts & DNS — .dk zone