AS212237 Changgong Zhang 🇨🇳 CN
Announcing 20 prefixes, seen at the RIS collectors.
IPv4 prefixes
6
2,560 (10 × /24)
IPv6 prefixes
14
36 × /48
Upstreams
11
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
- AS212237
- Name
- Changgong Zhang
- Organisation
- Phoenix Network
- Country
- 🇨🇳 CN
- RIR
- RIPENCC
- Allocated
- 2020-12-02
- Network type
- Educational/Research
- Traffic levels
- 100-1000Mbps
- Scope
- Global
- Peering policy
- Open
- IRR as-set
- AS-PXNET
- PeeringDB
- net/25366
- Exchanges
- 7
RPKI coverage of this AS
Its own announcements, validated against the current ROA set
Announced prefixes
6 in total
| Prefix | RPKI | Peers | Sample path | First seen |
|---|---|---|---|---|
| 103.31.236.0/22 v4 | RPKI valid | 43 | 3772141051212237 | 2026-10-05 |
| 103.31.236.0/23 v4 | RPKI valid | 42 | 1763920473212237 | 2026-09-18 |
| 103.31.236.0/24 v4 | RPKI valid | 45 | 693953667212237 | 2026-09-18 |
| 103.31.237.0/24 v4 | RPKI valid | 40 | 2448234927212237 | 2026-10-05 |
| 103.31.238.0/24 v4 | RPKI valid | 44 | 37721917212237 | 2026-09-18 |
| 103.31.239.0/24 v4 | RPKI valid | 45 | 693953667212237 | 2026-09-18 |