subnet.im

AS24366CERNET2 IX at Tongji University

ChinaRegistryAPNIC

As of 11th November 2026, AS24366 (CERNET2 IX at Tongji University), a network registered in China with APNIC, originates 17 IPv6 prefixes. It is seen behind 1 upstream network, most often AS23910 (China Next Generation Internet CERNET2). 88% of its announcements have a valid RPKI ROA; 1 is RPKI-invalid. 0% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

0

IPv6 prefixes

17

IPv4 addresses

0

IPv6 /64s

4.3B

Upstream graph

The networks AS24366 is seen behind, one and two hops out, drawn from real AS paths.

AS24366Toward the internet core
Upstream graph for AS24366: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS24366CERNET2 IX at Ton…This networkAS23910China Next Genera…AS4538China Education a…AS23911China Next Genera…

Networks observed one and two hops upstream of AS24366 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 AS24366
NetworkCountryRelationshipPathsVantage pts
AS23910China Next Generation Internet CERNET2CNPeer503

Prefixes

The largest blocks AS24366 originates, widest first.

Largest prefixes originated by AS24366
PrefixAddressesVisibility
240c:c702::/324.3B × /643/63
2001:250:6006::/4865.5k × /643/63
2001:250:600b::/4865.5k × /643/63
2001:250:6012::/4865.5k × /643/63
2001:250:6025::/4865.5k × /643/63
2001:250:6040::/4865.5k × /643/63
2001:250:6041::/4865.5k × /643/63
2001:da8:b8::/4865.5k × /643/63
2001:da8:8002::/4865.5k × /643/63
2001:da8:800f::/4865.5k × /643/63

Routing health

How AS24366'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

  • Valid88.2%15
  • Invalid5.9%1
  • No ROA5.9%1

Propagation

  • Globally propagated90% of full-feed peers or more0.0%0
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%100.0%17

Prefix sizes

IPv6 — 17 prefixes

  • /324.3B × /645.9%1
  • /4865.5k × /6494.1%16

Recent changes

Announcements that started or stopped since 12th Oct 2026.

17 announced and 0 withdrawn in all; the most recent are shown.

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