AS63781 Kobayashi Family Net LLP 🇯🇵 JP
Announcing 3 prefixes, seen at the RIS collectors.
IPv4 prefixes
2
512 (2 × /24)
IPv6 prefixes
1
1 × /32
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
- AS63781
- Name
- Kobayashi Family Net LLP
- Organisation
- Kobayashi Family Net
- Country
- 🇯🇵 JP
- RIR
- APNIC
- Allocated
- 2014-08-25
- Network type
- Educational/Research
- Traffic levels
- 10-20Gbps
- Scope
- Asia Pacific
- Peering policy
- Selective
- IRR as-set
- AS63781:AS-KFNET-JP
- Website
- https://kobayashi.gr.jp
- PeeringDB
- net/23248
- Exchanges
- 1
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
3 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 103.143.136.0/24 v4 | RPKI valid | 43 | 176395910563781 | 2026-09-18 |
| 103.143.137.0/24 v4 | RPKI valid | 43 | 176395910563781 | 2026-09-18 |
| 2405:5340::/32 v6 | RPKI valid | 39 | 176395910563781 | 2026-09-18 |