subnet.im

AS24358CERNET2 IX at Huazhong University of Science and Technology

ChinaRegistryAPNIC

As of 26th September 2026, AS24358 (CERNET2 IX at Huazhong University of…), a network registered in China with APNIC, originates 4 IPv4 prefixes covering 262k addresses and 135 IPv6 prefixes. By IPv4 address space that makes it the 1,101st-largest of the 79,516 networks we see originating IPv4, and the 70th-largest of 607 in China. It is seen behind 2 upstream networks, most often AS23910 (China Next Generation Internet CERNET2) and AS4538 (China Education and Research Network…). 96% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 0% of its routes reach at least 90% of full-feed peers, and 9 prefixes are also originated by another network.

At a glance

IPv4 prefixes

4

IPv6 prefixes

135

IPv4 addresses

262k

IPv6 /64s

4.3B

Upstream graph

The networks AS24358 is seen behind, one and two hops out, drawn from real AS paths.

AS24358Toward the internet core
Upstream graph for AS24358: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS24358CERNET2 IX at Hua…This networkAS4538China Education a…AS23910China Next Genera…AS4837China Unicom Back…AS23764China Telecom Glo…AS4134China Telecom Bac…

Networks observed one and two hops upstream of AS24358 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS24358
NetworkCountryRelationshipPathsVantage pts
AS23910China Next Generation Internet CERNET2CNPeer1,1809
AS4538China Education and Research Network CenterCNPeer82

Prefixes

All 139

The largest blocks AS24358 originates, widest first.

Largest prefixes originated by AS24358
PrefixAddressesVisibility
211.67.0.0/1665.5k2/81
211.69.0.0/1665.5k2/81
211.85.0.0/1665.5k2/81
218.199.0.0/1665.5k2/81
240c:cc02::/324.3B × /649/64
2001:250:4000::/4865.5k × /649/64
2001:250:4001::/4865.5k × /649/64
2001:250:4002::/4865.5k × /649/64
2001:250:4003::/4865.5k × /649/64
2001:250:4004::/4865.5k × /649/64

Routing health

How AS24358'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

  • Valid96.4%134
  • Invalid0.0%0
  • No ROA3.6%5

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%139

Prefix sizes

IPv4 — 4 prefixes

IPv6 — 135 prefixes

  • /324.3B × /640.7%1
  • /4865.5k × /6499.3%134

Recent changes

Announcements that started or stopped since 28th Aug 2026.

  • Announced2001:250:4053::/4822nd Sept 2026
  • Withdrawn202.112.20.0/2421st Sept 2026
  • Withdrawn202.112.21.0/2421st Sept 2026
  • Withdrawn202.112.22.0/2421st Sept 2026

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