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AS56381level66.network UG (haftungsbeschraenkt)

GermanyRegistryRIPE NCCTypeContent

As of 26th September 2026, AS56381 (level66.network UG (haftungsbeschraenkt)), a content network registered in Germany with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses and 3 IPv6 prefixes. By IPv4 address space that makes it the 48,553rd-largest of the 79,516 networks we see originating IPv4, and the 1,536th-largest of 2,288 in Germany. It is seen behind 18 upstream networks, most often AS9002 (RETN Limited) and AS5405 (Inter.link GmbH), and in front of 9 downstream networks. 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

2

IPv6 prefixes

3

IPv4 addresses

512

IPv6 /64s

537M

Upstream graph

The networks AS56381 is seen behind, one and two hops out, drawn from real AS paths.

AS56381Toward the internet core
Upstream graph for AS56381: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS56381level66.network U…This networkAS1299Arelion (fka. Tel…AS5405Inter.link GmbHAS6939Hurricane Electri…AS9002RETN LimitedAS50629LWLcom GmbHAS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS3491PCCW Global (HK) …AS13237euNetworks GmbHAS6453TATA Communicatio…AS51907Kanton ZugAS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS56381 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

111

adjacent networks

Upstreams
1816%
Peers
8476%
Downstreams
98%

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

Upstreams of AS56381
NetworkCountryRelationshipPathsVantage pts
AS9002RETN LimitedGBPeer77659
AS5405Inter.link GmbHDEPeer25548
AS1299Arelion (fka. Telia Carrier)SEPeer16529
AS50629LWLcom GmbHDEPeer14523
AS6939Hurricane Electric LLCUSPeer337
AS58511Swoop (Anycast Global Backbone)AUPeer222
AS132337AxclusiveSGPeer171
AS49544i3D.net B.VNLPeer172
AS32590Valve CorporationUSPeer122
AS25091IP-Max SACHPeer102

Prefixes

The largest blocks AS56381 originates, widest first.

Largest prefixes originated by AS56381
PrefixAddressesVisibility
141.98.136.0/2425681/81
141.98.139.0/2425681/81
2a09:11c0:1000::/36268M × /6464/64
2a09:11c0:2000::/36268M × /6464/64
2a09:11c0::/4865.5k × /6464/64

Routing health

How AS56381'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%5
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%5
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

IPv6 — 3 prefixes

  • /36268M × /6466.7%2
  • /4865.5k × /6433.3%1

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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