Erasmus Universiteit Rotterdam
Data as of 2026-08-09
BGP inherited
Cluster stats
| Netblocks | 4 · 131,080 IPv4 addresses |
| IPv6 | 1 prefix (largest 2001:41f0:1553::/48) |
| Cluster ID | 218287763 |
| Registry | RIPE |
| Customers | find customers using 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 |
|---|---|---|---|---|
| 130.115.0.0/16 | Erasmus Universiteit Rotterdam | RIPE | LEGACY | ● high |
| 145.5.0.0/16 | Erasmus Universiteit Rotterdam | RIPE | LEGACY | ● high |
| 217.100.106.112/29 | ERASMUS_UNIVERSITEIT_ROTTERDAM | RIPE | ASSIGNED PA | ● low |
| 2001:41f0:1553::/48 | ERASMUS_UNIVERSITEIT_ROTTERDAM | RIPE | ASSIGNED | ● low |
IPv6 ranges (1)
| CIDR |
|---|
| 2001:41f0:1553::/48 |
Domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(4 of 4)
Possible discrepancies (1)
These blocks are registered to Erasmus Universiteit Rotterdam 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.
| 2001:41f0:1553::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
Routed via provider/NREN (2)
These blocks are cryptographically authorized for this organisation's national research & education network or transit provider — expected topology for an institution that routes through it, not a discrepancy.
| 130.115.0.0/16 /16 | routed via AS1103 — SURF (SURF B.V.) |
| 145.5.0.0/16 /16 | routed via AS1103 — SURF (SURF B.V.) |
NIC Handles
DUMY-RIPE
DUMY-RIPE
JW801-RIPE-MNT
ORG-EUR2-RIPE
RIPE-NCC-LEGACY-MNT
SN-LIR-MNT
SURF-AUTO-MNT
ZIGGO-AUTOREG1