National Defense University
Data as of 2026-07-26
BGP inherited
Cluster stats
| Netblocks | 3 · 512 IPv4 addresses |
| All fragments | 5 blocks across 3 clusters |
| Cluster ID | 214482838 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| 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 · report an issue | |
IP Ranges (3)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 216.21.18.0/24 | National Defense University | BGP | ANNOUNCED | ● high |
| 216.21.19.0/24 | National Defense University | BGP | ANNOUNCED | ● high |
| 216.21.18.0/23 | National Defense University | ARIN | DIRECT ALLOCATION | ● low |
NIC Handles
AS5721
CJH19-ARIN
CJH19-ARIN
CJH19-ARIN
NDU-1