LUBMAN
Cluster stats
Netblocks92
All fragments 806 blocks across 409 clusters
Cluster ID191892094
RegistryRIPE
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 3 shared RIR contact/maintainer handles
Registry names 2 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

2 weekly snapshots · JSON
92 0 netblocks since 2026-07-05
2026-07-05 peak 92 2026-07-06

IP Ranges (92)

showing 50 of 92 — see all — ⬇ export CSV
CIDR Org name Registry Status Confidence
87.246.213.0/24 LUBMAN RIPE ASSIGNED PA ● low
87.246.226.208/29 LUBMAN RIPE ASSIGNED PA ● low
87.246.232.40/29 LUBMAN RIPE ASSIGNED PA ● low
87.246.232.56/29 LUBMAN RIPE ASSIGNED PA ● low
87.246.237.152/30 LUBMAN RIPE ASSIGNED PA ● low
185.76.104.0/24 LUBMAN RIPE ASSIGNED PA ● low
212.182.30.224/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.51.160/27 LUBMAN RIPE ASSIGNED PA ● low
212.182.53.0/24 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.8/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.16/28 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.40/30 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.48/28 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.64/28 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.80/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.88/30 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.96/27 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.128/26 LUBMAN RIPE ASSIGNED PA ● low
212.182.56.192/28 LUBMAN RIPE ASSIGNED PA ● low
212.182.57.64/28 LUBMAN RIPE ASSIGNED PA ● low
212.182.57.104/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.58.8/30 LUBMAN RIPE ASSIGNED PA ● low
212.182.58.96/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.58.120/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.62.0/27 LUBMAN RIPE ASSIGNED PA ● low
212.182.62.40/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.62.64/26 LUBMAN RIPE ASSIGNED PA ● low
212.182.62.160/27 LUBMAN RIPE ASSIGNED PA ● low
212.182.62.192/28 LUBMAN RIPE ASSIGNED PA ● low
212.182.62.224/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.63.0/25 LUBMAN RIPE ASSIGNED PA ● low
212.182.63.128/26 LUBMAN RIPE ASSIGNED PA ● low
212.182.63.192/27 LUBMAN RIPE ASSIGNED PA ● low
212.182.63.232/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.63.240/28 LUBMAN RIPE ASSIGNED PA ● low
212.182.89.32/27 LUBMAN RIPE ASSIGNED PA ● low
212.182.89.80/28 LUBMAN RIPE ASSIGNED PA ● low
212.182.89.96/28 LUBMAN RIPE ASSIGNED PA ● low
212.182.89.120/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.89.140/30 LUBMAN RIPE ASSIGNED PA ● low
212.182.89.144/29 LUBMAN-HOSTING RIPE ASSIGNED PA ● low
212.182.89.152/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.89.160/29 LUBMAN-HOSTING RIPE ASSIGNED PA ● low
212.182.89.172/30 LUBMAN RIPE ASSIGNED PA ● low
212.182.89.184/30 LUBMAN RIPE ASSIGNED PA ● low
212.182.92.0/27 LUBMAN RIPE ASSIGNED PA ● low
212.182.92.48/29 LUBMAN RIPE ASSIGNED PA ● low
212.182.94.128/30 LUBMAN RIPE ASSIGNED PA ● low
212.182.95.76/30 LUBMAN RIPE ASSIGNED PA ● low
212.182.97.252/30 LUBMAN RIPE ASSIGNED PA ● low

Network trust

what's this?
RPKI hygiene: D how networks compare →
33.7% of checked blocks have valid RPKI ROA coverage (31 of 92)
Possible discrepancies (3)

These blocks are registered to LUBMAN 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.

87.246.213.0/24 /24 authorized for AS12324 — Maria Curie-Sklodowska University
212.182.53.0/24 /24 authorized for AS12324 — Maria Curie-Sklodowska University
185.76.104.0/24 /24 authorized for AS12324 — Maria Curie-Sklodowska University

NIC Handles

DUMY-RIPE DUMY-RIPE PL-LUBMAN-MNT