Mark Schaefer
Cluster stats
Netblocks20
All fragments 684 blocks across 480 clusters
Cluster ID191630002
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

IP Ranges (20)

⬇ export CSV
CIDR Org name Registry Status Confidence
37.61.215.40/29 Mark Schaefer RIPE ASSIGNED PA ● high
37.61.215.56/29 Mark Schaefer RIPE ASSIGNED PA ● high
37.61.215.84/31 Mark Schaefer RIPE ASSIGNED PA ● high
37.61.218.64/29 Mark Schaefer RIPE ASSIGNED PA ● high
37.61.218.72/29 Mark Schaefer RIPE ASSIGNED PA ● high
37.61.222.128/29 Mark Schaefer RIPE ASSIGNED PA ● high
37.61.222.136/29 Mark Schaefer RIPE ASSIGNED PA ● high
85.195.95.174/31 Mark Schaefer RIPE ASSIGNED PA ● high
85.195.96.204/31 Mark Schaefer RIPE ASSIGNED PA ● high
85.195.98.170/31 Mark Schaefer RIPE ASSIGNED PA ● high
85.195.109.68/31 Mark Schaefer RIPE ASSIGNED PA ● high
92.205.32.8/29 Mark Schaefer RIPE ASSIGNED PA ● high
92.205.32.48/29 Mark Schaefer RIPE ASSIGNED PA ● high
92.205.32.56/29 Mark Schaefer RIPE ASSIGNED PA ● high
146.0.227.148/30 Mark Schaefer RIPE ASSIGNED PA ● high
2a01:7a0:2:2068::/64 Mark Schaefer RIPE ASSIGNED ● high
2a01:7a0:2:2069::/64 Mark Schaefer RIPE ASSIGNED ● high
2a01:7a0:2:213e::/64 Mark Schaefer RIPE ASSIGNED ● high
2a01:7a0:2:21c2::/64 Mark Schaefer RIPE ASSIGNED ● high
2a01:7a0:2:2227::/64 Mark Schaefer RIPE ASSIGNED ● high

Network trust

what's this?
RPKI hygiene: A how networks compare →
100.0% of checked blocks have valid RPKI ROA coverage (20 of 20)
No discrepancies found among checked blocks.

NIC Handles

DUMY-RIPE DUMY-RIPE FGK-MNT FGK10-RIPE ORG-MS839-RIPE