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AS15731InterLIR GmbH

GermanyRegistryRIPE NCC

As of 26th September 2026, AS15731 (InterLIR GmbH), a network registered in Germany with RIPE NCC, originates 9 IPv4 prefixes covering 2.3k addresses. By IPv4 address space that makes it the 24,092nd-largest of the 79,516 networks we see originating IPv4, and the 799th-largest of 2,288 in Germany. It is seen behind 3 upstream networks, most often AS6204 (TMRC GROUP SRL) and AS16276 (OVH SAS). Every one of its announcements has 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

9

IPv6 prefixes

0

IPv4 addresses

2.3k

IPv6 /64s

0

Upstream graph

The networks AS15731 is seen behind, one and two hops out, drawn from real AS paths.

AS15731Toward the internet core
Upstream graph for AS15731: 7 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS15731InterLIR GmbHThis networkAS6204TMRC GROUP SRLAS16276OVH SASAS199524Gcore S.A.AS2914NTT America, Inc.AS174Cogent Communicat…AS1299Arelion (fka. Tel…AS3491PCCW Global (HK) …

Networks observed one and two hops upstream of AS15731 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

6

adjacent networks

Upstreams
350%
Peers
350%
Downstreams
00%

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

Upstreams of AS15731
NetworkCountryRelationshipPathsVantage pts
AS6204TMRC GROUP SRLROPeer56080
AS16276OVH SASFRPeer8181
AS199524Gcore S.A.LUPeer8181

Prefixes

The largest blocks AS15731 originates, widest first.

Largest prefixes originated by AS15731
PrefixAddressesVisibility
13.143.227.0/2425680/81
13.143.248.0/2425680/81
89.35.73.0/2425680/81
153.52.118.0/2425681/81
153.52.119.0/2425681/81
153.76.195.0/2425680/81
153.76.205.0/2425680/81
162.35.230.0/2425680/81
163.5.243.0/2425680/81

Routing health

How AS15731'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

  • Valid100.0%9
  • Invalid0.0%0
  • No ROA0.0%0

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 — 9 prefixes

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Withdrawn104.164.54.0/2421st Sept 2026

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