subnet.im

AS218771Snark Holding Corp.

United StatesRegistryRIPE NCC

As of 27th September 2026, AS218771 (Snark Holding Corp.), a network registered in the United States with RIPE NCC, originates 2 IPv6 prefixes. It is seen behind 3 upstream networks, most often AS209735 (Lagrange Cloud Technologies Limited) and AS207841 (Inferno Communications Ltd). 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

0

IPv6 prefixes

2

IPv4 addresses

0

IPv6 /64s

131k

Upstream graph

The networks AS218771 is seen behind, one and two hops out, drawn from real AS paths.

AS218771Toward the internet core
Upstream graph for AS218771: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS218771Snark Holding Cor…This networkAS207841Inferno Communica…AS209735Lagrange Cloud Te…AS212895Johannes ErnstAS61049Exascale LtdAS137409GSL Networks Pty …AS44355Colocation LtdAS6939Hurricane Electri…AS52025ParadoxNetworks L…

Networks observed one and two hops upstream of AS218771 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 AS218771
NetworkCountryRelationshipPathsVantage pts
AS209735Lagrange Cloud Technologies LimitedGBPeer6434
AS207841Inferno Communications LtdGBPeer3620
AS212895Johannes ErnstDEPeer2414

Prefixes

The largest blocks AS218771 originates, widest first.

Largest prefixes originated by AS218771
PrefixAddressesVisibility
2602:f6d0:e2::/4865.5k × /6462/64
2a06:9801:f99::/4865.5k × /6462/64

Routing health

How AS218771'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%2
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv6 — 2 prefixes

  • /4865.5k × /64100.0%2

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.