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AS200461Ian David Klemm

GermanyRegistryRIPE NCC

As of 11th November 2026, AS200461 (Ian David Klemm), a network registered in Germany with RIPE NCC, originates 6 IPv4 prefixes covering 1.5k addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 31,740th-largest of the 80,743 networks we see originating IPv4, and the 1,014th-largest of 2,331 in Germany. It is seen behind 2 upstream networks, most often AS58212 (dataforest GmbH) and AS400304 (Redoubt Networks (Synteq / Crunchbits)), and in front of 10 downstream networks. 67% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

6

IPv6 prefixes

3

IPv4 addresses

1.5k

IPv6 /64s

4.8B

Upstream graph

The networks AS200461 is seen behind, one and two hops out, drawn from real AS paths.

AS200461Toward the internet core
Upstream graph for AS200461: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS200461Ian David KlemmThis networkAS58212dataforest GmbHAS400304Redoubt Networks …AS2914NTT America, Inc.AS6453TATA Communicatio…AS1299Arelion (fka. Tel…AS3257GTT Communication…

Networks observed one and two hops upstream of AS200461 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

24

adjacent networks

Upstreams
28%
Peers
1250%
Downstreams
1042%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS200461
NetworkCountryRelationshipPathsVantage pts
AS58212dataforest GmbHDEPeer1,712138
AS400304Redoubt Networks (Synteq / Crunchbits)USPeer139139

Prefixes

The largest blocks AS200461 originates, widest first.

Largest prefixes originated by AS200461
PrefixAddressesVisibility
77.90.44.0/2425676/76
89.106.80.0/2425676/76
178.18.148.0/2425676/76
178.251.228.0/2425675/76
185.23.5.0/2425676/76
194.110.175.0/2425676/76
2a09:bfc7::/324.3B × /6462/63
2a09:bfc7:2000::/35537M × /6462/63
2a0e:fd45:2ec0::/4865.5k × /6463/63

Routing health

How AS200461's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid66.7%6
  • Invalid0.0%0
  • No ROA33.3%3

Propagation

  • Globally propagated90% of full-feed peers or more100.0%9
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 6 prefixes

IPv6 — 3 prefixes

  • /324.3B × /6433.3%1
  • /35537M × /6433.3%1
  • /4865.5k × /6433.3%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS200461 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.