AS24351CERNET2 IX at Beijing University of Aeronautics and Astronautics
ChinaRegistryAPNICAs of 26th September 2026, AS24351 (CERNET2 IX at Beijing University of…), a network registered in China with APNIC, originates 10 IPv6 prefixes. It is seen behind 1 upstream network, most often AS23910 (China Next Generation Internet CERNET2). Every one of its announcements has a valid RPKI ROA, and none are RPKI-invalid. 0% of its routes reach at least 90% of full-feed peers, and 10 prefixes are also originated by another network.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS24351 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS24351 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.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS23910China Next Generation Internet CERNET2 | CN | Peer | 70 | 7 |
Prefixes
The largest blocks AS24351 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 2001:250:206::/48 | 65.5k × /64 | 7/64 |
| 2001:250:20a::/48 | 65.5k × /64 | 7/64 |
| 2001:250:20f::/48 | 65.5k × /64 | 7/64 |
| 2001:250:214::/48 | 65.5k × /64 | 7/64 |
| 2001:da8:ae::/48 | 65.5k × /64 | 7/64 |
| 2001:da8:bc::/48 | 65.5k × /64 | 7/64 |
| 2001:da8:203::/48 | 65.5k × /64 | 7/64 |
| 2001:da8:20a::/48 | 65.5k × /64 | 7/64 |
| 2001:da8:25f::/48 | 65.5k × /64 | 7/64 |
| 2001:da8:ffc::/48 | 65.5k × /64 | 7/64 |
Routing health
How AS24351'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%10
- Invalid0.0%0
- No ROA0.0%0
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%10
Prefix sizes
IPv6 — 10 prefixes
- /4865.5k × /64100.0%10
Recent changes
Announcements that started or stopped since 28th Aug 2026.
No announcement by AS24351 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.