International Institute for Applied Systems Analysis
Data as of 2026-10-18
BGP inherited
This organisation
| Netblocks | 4 · 65,536 IPv4 addresses |
| IPv6 | 2 prefixes (largest 2001:628:21f0::/48) |
| Also registered under this name | 9 netblocks across 4 separate records |
| Record ID | 250110225 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 8 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 (4)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 147.125.0.0/16 | International Institute for Applied Systems Analysis | RIPE | LEGACY | ● high |
| 147.125.0.0/17 | International Institute for Applied Systems Analysis | RIPE | LEGACY | ● high |
| 2001:628:21f0::/48 | International Institute for Applied Systems Analysis | RIPE | ASSIGNED | ● high |
| 2001:67c:1b70::/48 | International Institute for Applied Systems Analysis | RIPE | ASSIGNED PI | ● high |
IPv6 ranges (2)
Footprint over time
17 weekly snapshots · JSON
6
0 netblocks since 2026-07-05
2026-07-05
peak 6
2026-10-18
Other domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: B
how networks compare →
83.3%
of checked blocks have valid RPKI ROA coverage
(5 of 6)
Possible discrepancies (1)
These blocks are registered to International Institute for Applied Systems Analysis but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2001:628:21f0::/48 /48 | authorized for AS1853 — ACONET |
NIC Handles
ACONET-LIR-MNT
ACONET-LIR-MNT
AS2488
DUMY-RIPE
DUMY-RIPE
ORG-IIFA6-RIPE
RIPE-NCC-END-MNT
RIPE-NCC-LEGACY-MNT