thomas

THOMAS-NET
Registry
Cluster stats
Netblocks7
All fragments 8 blocks across 2 clusters
Cluster ID205024940
RegistryAFRINIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution Registry record
Shared handles clustered on 9 shared RIR contact/maintainer handles
Registry names 5 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

IP Ranges (7)

⬇ export CSV
CIDR Org name Registry Status Confidence
41.191.227.228/30 thomas AFRINIC ASSIGNED PA ● low
81.143.70.216/29 thomas RIPE ASSIGNED PA ● low
81.143.165.200/29 THOMAS RIPE ASSIGNED PA ● low
195.169.102.0/24 THOMAS-NET RIPE ASSIGNED PA ● low
212.170.252.56/29 Thomas RIPE ASSIGNED PA ● low
217.46.251.32/29 THOMAS RIPE ASSIGNED PA ● low
2001:610:1b8::/48 THOMAS-NET 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 (6 of 7)
Possible discrepancies (2)

These blocks are registered to THOMAS-NET 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.

2001:610:1b8::/48 /48 authorized for AS1103 — SURF B.V.
195.169.102.0/24 /24 authorized for AS1103 — SURF B.V.

NIC Handles

AA110-AFRINIC AA110-AFRINIC BTNET-MNT DUMY-RIPE DUMY-RIPE LIQUID-TOL-MNT MAINT-AS3352 SN-LIR-MNT SURF-AUTO-MNT