ODC-Noord
Cluster stats
Netblocks14
All fragments 37 blocks across 10 clusters
Cluster ID191709208
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 5 shared RIR contact/maintainer handles
Registry names 1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

2 weekly snapshots · JSON
14 0 netblocks since 2026-07-05
2026-07-05 peak 14 2026-07-06

IP Ranges (14)

⬇ export CSV
CIDR Org name Registry Status Confidence
147.181.4.0/22 ODC-Noord RIPE LEGACY ● low
147.181.8.0/22 ODC-Noord RIPE LEGACY ● low
147.181.12.0/22 ODC-Noord RIPE LEGACY ● low
147.181.16.0/23 ODC-Noord RIPE LEGACY ● low
147.181.32.0/22 ODC-Noord RIPE LEGACY ● low
147.181.36.0/22 ODC-Noord RIPE LEGACY ● low
147.181.40.0/22 ODC-Noord RIPE LEGACY ● low
147.181.44.0/22 ODC-Noord RIPE LEGACY ● low
147.181.48.0/22 ODC-Noord RIPE LEGACY ● low
147.181.52.0/22 ODC-Noord RIPE LEGACY ● low
147.181.128.0/20 ODC-Noord RIPE LEGACY ● low
2a04:9a00:1000::/44 ODC-Noord RIPE ALLOCATED-BY-LIR ● low
2a04:9a05::/32 ODC-Noord RIPE ALLOCATED-BY-LIR ● low
2a04:9a05:1000::/36 ODC-Noord RIPE ALLOCATED-BY-LIR ● low

Network trust

what's this?
RPKI hygiene: B how networks compare →
85.7% of checked blocks have valid RPKI ROA coverage (12 of 14)
RPKI-inferred operator Dienst Uitvoering Onderwijs
Nearly all of this network's RPKI-covered space is cryptographically authorized for this single operator — the registered netname is likely one of its internal infrastructure labels.
Possible discrepancies (1)

These blocks are registered to ODC-Noord 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.

147.181.40.0/22 /22 authorized for AS48037 — SSC-ICT Haaglanden

NIC Handles

DUMY-RIPE DUMY-RIPE LOGIUS ODCN-MNT ORG-ODCN2-RIPE