Changgong Zhang
Cluster stats
| Netblocks | 12 |
| Cluster ID | 191438052 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 5 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
2 weekly snapshots · JSON
12
0 netblocks since 2026-07-05
2026-07-05
peak 12
2026-07-06
IP Ranges (12)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 103.31.236.0/24 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 103.31.236.0/23 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 103.31.237.0/24 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 103.31.238.0/24 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 103.31.239.0/24 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 2403:6380:40::/48 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 2403:6380:41::/48 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 2403:6380:42::/48 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 2403:6380:43::/48 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 2403:6380:60::/44 | Changgong Zhang | BGP | ANNOUNCED | ● high |
| 2a0e:b107:dce::/48 | Changgong Zhang | RIPE | ASSIGNED | ● high |
| 2a10:2f00:15a::/48 | Changgong Zhang | RIPE | ASSIGNED | ● high |
Network trust
what's this?
RPKI hygiene: B
how networks compare →
83.3%
of checked blocks have valid RPKI ROA coverage
(10 of 12)
No discrepancies found among checked blocks.
NIC Handles
AS212237
DUMY-RIPE
DUMY-RIPE
ORG-PN126-RIPE
SBMT