Nikhef
Cluster stats
Netblocks19
All fragments 32 blocks across 14 clusters
Cluster ID191838768
RegistryPEERINGDB
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 6 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (19)

⬇ export CSV
CIDR Org name Registry Status Confidence
80.249.209.218/32 Nikhef PEERINGDB ASSIGNED ● high
185.1.160.66/32 Nikhef PEERINGDB ASSIGNED ● high
185.1.160.182/32 Nikhef PEERINGDB ASSIGNED ● high
193.239.118.4/32 Nikhef PEERINGDB ASSIGNED ● high
193.239.118.5/32 Nikhef PEERINGDB ASSIGNED ● high
2001:7f8:1::a500:1104:1/128 Nikhef PEERINGDB ASSIGNED ● high
2001:7f8:13::a500:1104:1/128 Nikhef PEERINGDB ASSIGNED ● high
2001:7f8:13::a500:1104:2/128 Nikhef PEERINGDB ASSIGNED ● high
2001:7f8:10f::450:66/128 Nikhef PEERINGDB ASSIGNED ● high
2001:7f8:10f::450:182/128 Nikhef PEERINGDB ASSIGNED ● high
145.102.132.0/22 NIKHEF-NET RIPE LEGACY ● low
145.102.136.0/22 NIKHEF-NET RIPE LEGACY ● low
145.107.0.0/22 NIKHEF-NET RIPE LEGACY ● low
145.107.4.0/22 NIKHEF-NET RIPE LEGACY ● low
145.107.12.0/22 NIKHEF-NET RIPE LEGACY ● low
145.110.0.0/16 NIKHEF-NET RIPE LEGACY ● low
145.116.48.0/20 NIKHEF-NET RIPE LEGACY ● low
145.116.208.0/21 NIKHEF-NET RIPE LEGACY ● low
194.171.96.0/21 NIKHEF-NET RIPE SUB-ALLOCATED PA ● low

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (19 of 19)
Possible discrepancies (9)

These blocks are registered to Nikhef but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

145.110.0.0/16 /16 authorized for AS1104 — Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
145.116.48.0/20 /20 authorized for AS1104 — Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
145.116.208.0/21 /21 authorized for AS1104 — Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
194.171.96.0/21 /21 authorized for AS1104 — Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
145.102.132.0/22 /22 authorized for AS1104 — Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
145.107.4.0/22 /22 authorized for AS1104 — Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
145.102.136.0/22 /22 authorized for AS1199 — SURF B.V.
145.107.12.0/22 /22 authorized for AS1104 — Stichting Nederlandse Wetenschappelijk Onderzoek Instituten
145.107.0.0/22 /22 authorized for AS1103 — SURF B.V.

NIC Handles

AS1103-MNT AS1104 DUMY-RIPE DUMY-RIPE SN-LIR-MNT SURF-AUTO-MNT