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AS215877Erwin Alexander Ising

NetherlandsRegistryRIPE NCC

As of 11th November 2026, AS215877 (Erwin Alexander Ising), a network registered in the Netherlands with RIPE NCC, originates 2 IPv6 prefixes. It is seen behind 3 upstream networks, most often AS44854 (Arend Brouwer) and AS57866 (Fusix Networks B.V.). 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 AS215877 is seen behind, one and two hops out, drawn from real AS paths.

AS215877Toward the internet core
Upstream graph for AS215877: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS215877Erwin Alexander I…This networkAS44854Arend BrouwerAS57866Fusix Networks B.…AS200149Erwin Alexander I…AS6939Hurricane Electri…AS3491PCCW Global (HK) …AS8283Netwerkvereniging…AS25091IP-Max SAAS28917Fiord Networks, U…

Networks observed one and two hops upstream of AS215877 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 AS215877
NetworkCountryRelationshipPathsVantage pts
AS44854Arend BrouwerNLPeer8242
AS57866Fusix Networks B.V.NLPeer3819
AS200149Erwin Alexander IsingNLPeer43

Prefixes

The largest blocks AS215877 originates, widest first.

Largest prefixes originated by AS215877
PrefixAddressesVisibility
2a10:e300:fff0::/4865.5k × /6462/63
2a10:e300:fff1::/4865.5k × /6462/63

Routing health

How AS215877'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 12th Oct 2026.

No announcement by AS215877 started or stopped in this period.

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