H3GUK
Cluster stats
Netblocks23
All fragments 24 blocks across 2 clusters
Cluster ID192397617
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

Footprint over time

2 weekly snapshots · JSON
23 0 netblocks since 2026-07-05
2026-07-05 peak 23 2026-07-06

IP Ranges (23)

⬇ export CSV
CIDR Org name Registry Status Confidence
92.40.0.0/16 H3GUK RIPE ASSIGNED PA ● low
92.41.0.0 – 92.41.251.255 H3GUK RIPE ASSIGNED PA ● low
92.41.252.0 – 92.41.253.0 H3GUK RIPE ASSIGNED PA ● low
94.196.0.0/16 H3GUK RIPE ASSIGNED PA ● low
94.197.0.0/16 H3GUK RIPE ASSIGNED PA ● low
185.153.236.0/24 H3GUK RIPE ASSIGNED PA ● low
185.153.237.0/24 H3GUK RIPE ASSIGNED PA ● low
185.153.238.0/24 H3GUK RIPE ASSIGNED PA ● low
185.153.239.0/24 H3GUK RIPE ASSIGNED PA ● low
188.28.0.0/16 H3GUK RIPE ASSIGNED PA ● low
188.29.0.0/16 H3GUK RIPE ASSIGNED PA ● low
188.30.0.0/16 H3GUK RIPE ASSIGNED PA ● low
188.31.0.0/16 H3GUK RIPE ASSIGNED PA ● low
217.171.128.0/22 H3GUK RIPE ASSIGNED PA ● low
217.171.132.0/22 H3GUK RIPE ASSIGNED PA ● low
217.171.136.0/22 H3GUK RIPE ASSIGNED PA ● low
2a04:4a40::/32 H3GUK RIPE ASSIGNED ● low
2a04:4a41::/32 H3GUK RIPE ASSIGNED ● low
2a04:4a43::/32 H3GUK RIPE ASSIGNED ● low
2a04:4a44::/32 H3GUK RIPE ASSIGNED ● low
2a04:4a45::/32 H3GUK RIPE ASSIGNED ● low
2a04:4a46::/32 H3GUK RIPE ASSIGNED ● low
2a04:4a47::/32 H3GUK RIPE ASSIGNED ● low

Network trust

what's this?
RPKI hygiene: C how networks compare →
73.9% of checked blocks have valid RPKI ROA coverage (17 of 23)
Possible discrepancies (7)

These blocks are registered to H3GUK but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.

217.171.132.0/22 /22 authorized for AS198949 — Radware Ltd
217.171.128.0/22 /22 authorized for AS198949 — Radware Ltd
217.171.136.0/22 /22 authorized for AS198949 — Radware Ltd
185.153.236.0/24 /24 authorized for AS174 — Cogent Communications, LLC
185.153.238.0/24 /24 authorized for AS198949 — Radware Ltd
185.153.237.0/24 /24 authorized for AS198949 — Radware Ltd
185.153.239.0/24 /24 authorized for AS174 — Cogent Communications, LLC

NIC Handles

DUMY-RIPE DUMY-RIPE H3GUK-MNT