🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS21574, 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.

🛰️ Upstream providers of AS21574

via ipbot.dk

Century Telecom Ltda announces 7 prefixes (6 IPv4, 1 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS263444Open X Tecnologia Ltda
100.0%
AS7195EDGEUNO S.A.S
83.4%
AS1031PEER 1031 LLC
21.2%
AS6939Hurricane Electric LLC
17.7%
AS267613ELETRONET S.A.
17.2%
AS3356Level 3 Parent, LLC
12.9%
AS35280F5 F5 Networks SARL
4.1%
AS5405INTERDOTLINK Inter.link GmbH
3.7%
AS25091IP-Max SA
3.6%
AS34019Hivane Association
3.5%

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

🔻 Networks using AS21574 as upstream

1 network
NetworkNameDomainsPower
AS52631As Informatica LTDA—
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 21574
🔍
No results found in the database.
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