AS8561 — KNIPPWORLDWI
AS8561 announces 11 IPv4 prefixes covering 5,888 addresses and 9 IPv6 prefixes.
About this network
KNIPPWORLDWIDE belongs to Knipp Medien und Kommunikation GmbH, a Dortmund company that operates domain-name infrastructure: the TANGO Registry Services platform used to run top-level domains (including brand TLDs such as .sap and .bauhaus), an ICANN-accredited registrar business, and ironDNS, its own unicast/anycast nameserver network deployed across roughly ten sites worldwide.
What it's used for
Authoritative DNS and registry back-end services. The routing shape is unusual and tells the story: about 7,680 IPv4 addresses across 21 prefixes, but 20 IPv6 prefixes — a lot of separate announcements for a small operator, which is what an anycast nameserver estate looks like when each node needs its own routable slice.
The sampled reverse DNS confirms it: anycast96.irondns.net is a nameserver node, while ip1-120-253-195.knipp.de and ip0.89.253.195.irondns.knipp.de are the company's own generated host records. There is no subscriber space and no third-party tenancy on the addresses sampled.
Notable
- Do not geolocate the anycast prefixes to Dortmund. By design, the same addresses answer from multiple continents; the company's registered address says nothing about where a given packet lands.
- DNS registry operators sit awkwardly in any usage taxonomy — the space is server infrastructure, but of a kind that serves the naming system itself rather than tenant workloads.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.
Announced prefixes
- 195.253.64.0/24
- 195.253.90.0/23
- 195.253.92.0/22
- 195.253.96.0/22
- 195.253.100.0/24
- 195.253.102.0/24
- 195.253.108.0/23
- 195.253.111.0/24
- 195.253.114.0/23
- 195.253.116.0/22
- 195.253.120.0/24
- 2a01:5b0:4::/48
- 2a01:5b0:14::/46
- 2a01:5b0:20::/45
- 2a01:5b0:26::/48
- 2a01:5b0:2c::/47
- 2a01:5b0:2f::/48
- 2a01:5b0:32::/47
- 2a01:5b0:34::/46
- 2a01:5b0:38::/48
Upstream networks
- AS36236 NetActuate, Inc
- AS8391 Knipp Medien und Kommunikation GmbH
- AS8298 IPng Networks GmbH
- AS34927 iFog GmbH
Adjacent networks
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