subnet.im

AS200983YoungSeo Kim

South KoreaRegistryRIPE NCC

As of 11th November 2026, AS200983 (YoungSeo Kim), a network registered in South Korea with RIPE NCC, originates 2 IPv6 prefixes. It is seen behind 1 upstream network, most often AS209710 (SNRD NETWORKS LIMITED). 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

1.1M

Upstream graph

The networks AS200983 is seen behind, one and two hops out, drawn from real AS paths.

AS200983Toward the internet core
Upstream graph for AS200983: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS200983YoungSeo KimThis networkAS209710SNRD NETWORKS LIM…AS212895Johannes ErnstAS216211CYBERVERSE LLC

Networks observed one and two hops upstream of AS200983 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS200983
NetworkCountryRelationshipPathsVantage pts
AS209710SNRD NETWORKS LIMITEDGBPeer12261

Prefixes

The largest blocks AS200983 originates, widest first.

Largest prefixes originated by AS200983
PrefixAddressesVisibility
2a14:7580:5c0::/441M × /6461/63
2a14:7581:ffc::/4865.5k × /6461/63

Routing health

How AS200983'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

  • /441M × /6450.0%1
  • /4865.5k × /6450.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS200983 started or stopped in this period.

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