DFN-SECURITY
Cluster stats
Netblocks12
All fragments 121 blocks across 12 clusters
Cluster ID191910430
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 3 shared RIR contact/maintainer handles
Registry names 1 distinct registrant name across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (12)

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CIDR Org name Registry Status Confidence
193.174.3.192/26 DFN-SECURITY RIPE ASSIGNED PA ● low
193.175.5.64/26 DFN-SECURITY RIPE ASSIGNED PA ● low
193.175.76.0/22 DFN-SECURITY RIPE ASSIGNED PA ● low
194.94.98.192/26 DFN-SECURITY RIPE ASSIGNED PA ● low
194.94.128.0/22 DFN-SECURITY RIPE ASSIGNED PA ● low
194.95.197.128/26 DFN-SECURITY RIPE ASSIGNED PA ● low
195.37.11.64/26 DFN-SECURITY RIPE ASSIGNED PA ● low
195.37.209.192/26 DFN-SECURITY RIPE ASSIGNED PA ● low
195.37.244.0/22 DFN-SECURITY RIPE ASSIGNED PA ● low
212.201.94.128/26 DFN-SECURITY RIPE ASSIGNED PA ● low
212.201.100.192/26 DFN-SECURITY RIPE ASSIGNED PA ● low
212.201.192.0/22 DFN-SECURITY RIPE ASSIGNED PA ● low

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (12 of 12)
Possible discrepancies (4)

These blocks are registered to DFN-SECURITY 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.

193.175.76.0/22 /22 authorized for AS680 — Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
194.94.128.0/22 /22 authorized for AS680 — Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
195.37.244.0/22 /22 authorized for AS680 — Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
212.201.192.0/22 /22 authorized for AS680 — Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.

NIC Handles

DFN-LIR-MNT DUMY-RIPE DUMY-RIPE