AS203997 XTDef Limited 🇭🇰 HK
Announcing 8 prefixes, seen at the RIS collectors.
IPv4 prefixes
6
1,536 (6 × /24)
IPv6 prefixes
2
2 × /48
Upstreams
4
transit providers observed
Peers
0
settlement-free adjacencies
Downstreams
0
transit customers observed
Customer cone
0
ASes reachable through it
Registry and operator data
- AS number
- AS203997
- Name
- XTDef Limited
- Organisation
- XTDef Limited
- Country
- 🇭🇰 HK
- RIR
- RIPENCC
- Allocated
- 2025-11-05
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 |
|---|---|---|---|---|---|
| AS20473 The Constant Company, LLC | 🇺🇸 US | 17,172 | 1,817 | 73 | inferred |
| AS57695 Misaka Network, Inc. | 🇺🇸 US | 42 | 11 | 41 | CAIDA |
| AS40994 Alwyzon (Hohl IT) | 🇦🇹 AT | 9 | 24 | 204 | CAIDA |
| AS56662 Marcin Gondek | 🇵🇱 PL | 0 | 0 | 1 | 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
No downstreams observed at the collectors.
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.