subnet.im

AS201943HSIEH HUAN-YU

TaiwanRegistryRIPE NCC

As of 11th November 2026, AS201943 (HSIEH HUAN-YU), a network registered in Taiwan with RIPE NCC, originates 2 IPv6 prefixes. It is seen behind 2 upstream networks, most often AS204844 (NCSE NETWORK LTD) and AS44324 (MoeDove LLC). 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 AS201943 is seen behind, one and two hops out, drawn from real AS paths.

AS201943Toward the internet core
Upstream graph for AS201943: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS201943HSIEH HUAN-YUThis networkAS44324MoeDove LLCAS204844NCSE NETWORK LTDAS140227Hong Kong Communi…AS216211CYBERVERSE LLCAS6939Hurricane Electri…AS134823Sky Digital Co., …

Networks observed one and two hops upstream of AS201943 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

7

adjacent networks

Upstreams
229%
Peers
571%
Downstreams
00%

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

Upstreams of AS201943
NetworkCountryRelationshipPathsVantage pts
AS204844NCSE NETWORK LTDGBPeer6363
AS44324MoeDove LLCUSPeer6262

Prefixes

The largest blocks AS201943 originates, widest first.

Largest prefixes originated by AS201943
PrefixAddressesVisibility
2a14:7581:6fa0::/441M × /6462/63
2a14:7581:6fa9::/4865.5k × /6463/63

Routing health

How AS201943'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.

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