AS24490Trans-Eurasia Information Network (TEIN2) - SG
ChinaRegistryAPNICAs of 26th September 2026, AS24490 (Trans-Eurasia Information Network…), a network registered in China with APNIC, originates 1 IPv4 prefix covering 2k addresses. By IPv4 address space that makes it the 25,306th-largest of the 79,516 networks we see originating IPv4, and the 360th-largest of 607 in China. It is seen behind 5 upstream networks, most often AS7660 (Asia Pacific Advanced Network - Japan) and AS11537 (Internet2), and in front of 12 downstream networks. None of its announcements have a valid RPKI ROA. 0% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS24490 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS24490 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
34
adjacent networks
- Upstreams
- 515%
- Peers
- 1750%
- Downstreams
- 1235%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS7660Asia Pacific Advanced Network - Japan |  JP | Peer | 695 | 1 |
| AS11537Internet2 |  US | Peer | 388 | 1 |
| AS23855Singapore Advanced Research and Education Network |  SG | Peer | 234 | 1 |
| AS9885NKN INTERNET GATEWAY NETWORK |  IN | Peer | 96 | 1 |
| AS24287National Institute of Informatics | JP | Peer | 1 | 1 |
Prefixes
The largest blocks AS24490 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 202.179.248.0/21 | 2k | 2/81 |
Routing health
How AS24490'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
- Valid0.0%0
- Invalid0.0%0
- No ROA100.0%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%1
Prefix sizes
IPv4 — 1 prefixes
Recent changes
Announcements that started or stopped since 27th Aug 2026.
No announcement by AS24490 started or stopped in this period.
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.