Tilman Schaefers
Cluster stats
Netblocks18
All fragments 21 blocks across 2 clusters
Cluster ID191784623
RegistryBGP
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 10 shared RIR contact/maintainer handles
Registry names 3 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

2 weekly snapshots · JSON
18 0 netblocks since 2026-07-05
2026-07-05 peak 18 2026-07-06

IP Ranges (18)

⬇ export CSV
CIDR Org name Registry Status Confidence
185.1.147.156/32 Tilman Schaefers PEERINGDB ASSIGNED ● high
185.1.166.32/32 Tilman Schaefers PEERINGDB ASSIGNED ● high
193.138.81.0/24 Tilman Schaefers BGP ANNOUNCED ● high
193.239.116.227/32 Tilman Schaefers PEERINGDB ASSIGNED ● high
194.153.158.71/32 Tilman Schaefers PEERINGDB ASSIGNED ● high
2001:7f8:13::a520:8814:1/128 Tilman Schaefers PEERINGDB ASSIGNED ● high
2001:7f8:a9::71/128 Tilman Schaefers PEERINGDB ASSIGNED ● high
2001:7f8:ca:1:0:20:8814:1/128 Tilman Schaefers PEERINGDB ASSIGNED ● high
2001:7f8:f2:e1:0:208:814:1/128 Tilman Schaefers PEERINGDB ASSIGNED ● high
2a06:a001:a090::/46 Tilman Schaefers BGP ANNOUNCED ● high
2a06:a001:a095::/48 Tilman Schaefers BGP ANNOUNCED ● high
2a06:a001:a096::/48 Tilman Schaefers BGP ANNOUNCED ● high
2a0f:5707:aa11::/48 Tilman Schaefers BGP ANNOUNCED ● high
2a0f:5707:aa12::/48 Tilman Schaefers BGP ANNOUNCED ● high
2a0f:5707:aa14::/46 Tilman Schaefers BGP ANNOUNCED ● high
2a06:a001:a090::/44 Tilman Schaefers RIPE ALLOCATED-BY-LIR ● low
2a0f:5707:aa10::/44 Tilman Schaefers RIPE ALLOCATED-BY-LIR ● low
2a0f:5707:aa10::/48 Tilman Schaefers RIPE ASSIGNED ● low

Network trust

what's this?
RPKI hygiene: C how networks compare →
77.8% of checked blocks have valid RPKI ROA coverage (14 of 18)
Possible discrepancies (1)

These blocks are registered to Tilman Schaefers 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.

193.138.81.0/24 /24 authorized for AS34568 — ConnectingBytes GmbH

NIC Handles

AS208814 AS208814 DUMY-RIPE DUMY-RIPE HOSTING-SERVER-MNT MNT-VSERVER ORG-TS511-RIPE WGTR-MNT WGTR-MNT ZAPPIE-MNT