GCN Publishing
GCN Publishing
BGP inherited
Cluster stats
Netblocks8
All fragments 50 blocks across 22 clusters
Cluster ID191840622
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution BGP parent (inherited)
Shared handles clustered on 16 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
8 0 netblocks since 2026-07-05
2026-07-05 peak 8 2026-07-06

IP Ranges (8)

⬇ export CSV
CIDR Org name Registry Status Confidence
74.201.40.0/22 GCN Publishing ARIN ● high
109.160.38.0/24 GCN_NEW RIPE ASSIGNED PA ● high
109.160.36.0/24 GCN_NEW RIPE ASSIGNED PA ● low
109.160.39.0/24 GCN_NEW RIPE ASSIGNED PA ● low
203.65.160.0/19 GCN-TW APNIC ALLOCATED PORTABLE ● low
210.62.0.0/18 GCN-TW APNIC ALLOCATED PORTABLE ● low
210.62.192.0/19 GCN-TW APNIC ALLOCATED PORTABLE ● low
210.67.160.0/19 GCN-TW APNIC ALLOCATED PORTABLE ● low

Network trust

what's this?
RPKI hygiene: B how networks compare →
87.5% of checked blocks have valid RPKI ROA coverage (7 of 8)
Possible discrepancies (7)

These blocks are registered to GCN Publishing 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.

210.62.0.0/18 /18 authorized for AS4662 — GCNet (Reach & Range Inc.)
210.67.160.0/19 /19 authorized for AS4662 — GCNet (Reach & Range Inc.)
210.62.192.0/19 /19 authorized for AS4662 — GCNet (Reach & Range Inc.)
203.65.160.0/19 /19 authorized for AS4662 — GCNet (Reach & Range Inc.)
109.160.36.0/24 /24 authorized for AS25211 — "Euro Crypt" EOOD
109.160.38.0/24 /24 authorized for AS25211 — "Euro Crypt" EOOD
109.160.39.0/24 /24 authorized for AS25211 — "Euro Crypt" EOOD

NIC Handles

AR24518-RIPE AT939-AP C03272470 DUMY-RIPE DUMY-RIPE EL19-AP LIR-GCN-MNT MAINT-GCNET-TW NAR50-ARIN PEERI21-ARIN PEERI21-ARIN PW1-TW +4 more