Universiteit Maastricht
Data as of 2026-07-26
BGP inherited
Cluster stats
| Netblocks | 69 · 65,680 IPv4 addresses |
| IPv6 | 34 prefixes (largest 2001:41f0:186e::/48) |
| Cluster ID | 213290970 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 7 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
6 weekly snapshots · JSON
69
0 netblocks since 2026-07-05
2026-07-05
peak 69
2026-07-26
IP Ranges (69)
showing 50 of 69 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 137.120.0.0/16 | Universiteit Maastricht | RIPE | LEGACY | ● high |
| 212.178.69.176/29 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.75.200/29 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.172.204/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.112/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.116/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.120/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.124/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.128/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.136/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.140/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.152/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.156/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.176/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.184/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.188/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.200/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.220/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.224/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.232/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.236/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.244/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.176.248/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.177.12/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.177.16/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.177.36/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.177.40/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.177.88/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.177.100/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.177.164/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.177.172/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.177.208/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.178.44/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.178.52/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 217.100.179.96/30 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED PA | ● low |
| 2001:41f0:379::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:186e::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:2880::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:2882::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:3852::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:3854::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:48cf::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:58fb::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:6d15::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:6d1a::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:6d34::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:7845::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:7846::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:8ae9::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
| 2001:41f0:8aec::/48 | UNIVERSITEIT_MAASTRICHT | RIPE | ASSIGNED | ● low |
IPv6 ranges (34)
showing the 15 largest allocationsDomains 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
(69 of 69)
Possible discrepancies (34)
These blocks are registered to Universiteit Maastricht 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.
| 2001:41f0:379::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:fa4d::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:8ae9::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:58fb::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:48cf::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:9899::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:2880::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:3852::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:7845::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:8aec::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:8aed::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:8af1::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:8af3::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:8af4::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:8af7::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
+19 more — see the REST API
Routed via provider/NREN (1)
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.
| 137.120.0.0/16 /16 | routed via AS1103 — SURF (SURF B.V.) |
NIC Handles
DUMY-RIPE
DUMY-RIPE
ORG-UM11-RIPE
RIPE-NCC-LEGACY-MNT
SN-LIR-MNT
SURF-AUTO-MNT
ZIGGO-AUTOREG1