AS24239 TWD2 Education and Research Network 🇨🇳 CN
Announcing 12 prefixes, seen at the RIS collectors.
IPv4 prefixes
0
-
IPv6 prefixes
12
42 × /48
Upstreams
3
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
2
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS24239
- Name
- TWD2 Education and Research Network
- Organisation
- TWD2 Education and Research Network 2
- Country
- 🇨🇳 CN
- RIR
- APNIC
- Allocated
- 2019-03-12
- Network type
- Educational/Research
- Scope
- Not Disclosed
- Peering policy
- Open
- IRR as-set
- AS209300:AS-CUSTOMERS
- Website
- https://bgp.twd2.net
- PeeringDB
- net/36040
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Upstreams
Networks seen providing transit to this one
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS6939 Hurricane Electric LLC | 🇺🇸 US | 55,072 | 185 | 96 | inferred |
| AS4842 Tianhai InfoTech | 🇨🇳 CN | 3 | 1 | 317 | inferred |
| AS209300 Wende Tan | 🇨🇳 CN | 0 | 1 | 107 | inferred |
Peers
Adjacencies that look settlement-free rather than transit
No peers observed at the collectors.
Downstreams
Networks this one appears to provide transit to
| Network | Country | Cone | IPv4 prefixes | Paths | Source |
|---|---|---|---|---|---|
| AS38255 China Education and Research Network (CERNET) | 🇨🇳 CN | 2 | 2 | 91 | inferred |
| AS45576 Tsinghua University | 🇨🇳 CN | 0 | 0 | 26 | inferred |
Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.