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AS218209Plato Master Technology Limited

European UnionRegistryRIPE NCC

As of 11th November 2026, AS218209 (Plato Master Technology Limited), a network registered in European Union with RIPE NCC, originates 5 IPv4 prefixes covering 1.3k addresses. By IPv4 address space that makes it the 34,029th-largest of the 80,743 networks we see originating IPv4, and the 69th-largest of 201 in European Union. It is seen behind 2 upstream networks, most often AS62610 (Zenlayer Inc) and AS21859 (Zenlayer Inc). 40% of its announcements have a valid RPKI ROA; 3 are RPKI-invalid. 0% of its routes reach at least 90% of full-feed peers, and 2 prefixes are also originated by another network.

At a glance

IPv4 prefixes

5

IPv6 prefixes

0

IPv4 addresses

1.3k

IPv6 /64s

0

Upstream graph

The networks AS218209 is seen behind, one and two hops out, drawn from real AS paths.

AS218209Toward the internet core
Upstream graph for AS218209: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS218209Plato Master Tech…This networkAS21859Zenlayer IncAS62610Zenlayer IncAS2914NTT America, Inc.AS4229Zenlayer IncAS29752Zenlayer Inc

Networks observed one and two hops upstream of AS218209 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

3

adjacent networks

Upstreams
267%
Peers
133%
Downstreams
00%

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

Upstreams of AS218209
NetworkCountryRelationshipPathsVantage pts
AS62610Zenlayer IncUSPeer11676
AS21859Zenlayer IncUSAdjacent5555

Prefixes

The largest blocks AS218209 originates, widest first.

Largest prefixes originated by AS218209
PrefixAddressesVisibility
51.194.191.0/2425620/76
79.180.18.0/2425621/76
94.118.108.0/2425620/76
187.55.62.0/2425655/76
189.12.156.0/2425655/76

Routing health

How AS218209'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

  • Valid40.0%2
  • Invalid60.0%3
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more0.0%0
  • Partially propagated40% to 90%40.0%2
  • Seen by few peersUnder 40%60.0%3

Prefix sizes

IPv4 — 5 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

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