Dienst Uitvoering Onderwijs
Cluster stats
| Netblocks | 22 |
| All fragments | 63 blocks across 7 clusters |
| Cluster ID | 191593327 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| 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 | |
IP Ranges (22)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 147.181.4.0/22 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.8.0/22 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.12.0/22 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.16.0/24 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.17.0/24 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.32.0/22 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.36.0/22 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.44.0/22 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.48.0/22 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.52.0/22 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.128.0/22 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 147.181.133.0/24 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 2001:67c:262c::/48 | Dienst Uitvoering Onderwijs | RIPE | ASSIGNED PI | ● high |
| 2a04:9a00:1001::/48 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 2a04:9a00:1002::/48 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 2a04:9a00:1003::/48 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 2a04:9a00:1005::/48 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 2a04:9a00:1007::/48 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 2a04:9a00:100e::/48 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 2a04:9a05:1000::/47 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 2a04:9a05:1050::/47 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
| 2a04:9a05:1052::/47 | Dienst Uitvoering Onderwijs | BGP | ANNOUNCED | ● high |
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(22 of 22)
Possible discrepancies (1)
These blocks are registered to Dienst Uitvoering Onderwijs 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.
| 2001:67c:262c::/48 /48 | authorized for AS1103 — SURF B.V. |
NIC Handles
AS202553
DUMY-RIPE
DUMY-RIPE
ODCN-MNT
ORG-DUO1-RIPE
RIPE-NCC-END-MNT
SN-LIR-MNT
SURF-AUTO-MNT