Alstom
ALSTOM
Cluster stats
Netblocks30
All fragments 102 blocks across 36 clusters
Cluster ID191859897
RegistryAPNIC
Customersfind customers using this network →
Evidence & provenance ?
Attribution unresolved
Shared handles clustered on 25 shared RIR contact/maintainer handles
Registry names 8 distinct registrant names across these blocks
full provenance (JSON) → · how attribution works

Footprint over time

2 weekly snapshots · JSON
30 0 netblocks since 2026-07-05
2026-07-05 peak 30 2026-07-06

IP Ranges (30)

⬇ export CSV
CIDR Org name Registry Status Confidence
203.162.47.240/29 ALSTOM-NET APNIC ASSIGNED NON-PORTABLE ● high
203.162.104.64/28 ALSTOM-NET APNIC ASSIGNED NON-PORTABLE ● high
222.66.252.8/29 ALSTOM-CO APNIC ASSIGNED NON-PORTABLE ● high
46.97.12.192/29 Alstom RIPE ASSIGNED PA ● low
62.5.176.20/30 ALSTOM RIPE ASSIGNED PA ● low
78.9.187.24/29 ALSTOM RIPE ASSIGNED PA ● low
82.150.18.112/28 Alstom RIPE ASSIGNED PA ● low
82.150.19.128/27 Alstom RIPE ASSIGNED PA ● low
82.150.29.192/26 Alstom RIPE ASSIGNED PA ● low
82.177.111.44/30 Alstom-NET RIPE ASSIGNED PA ● low
83.136.139.208/30 ALSTOM RIPE ASSIGNED PA ● low
83.238.4.32/29 ALSTOM RIPE ASSIGNED PA ● low
88.220.50.248/29 ALSTOM-NET RIPE ASSIGNED PA ● low
88.220.166.48/29 ALSTOM-NET RIPE ASSIGNED PA ● low
125.214.42.128/28 alstom-net APNIC ASSIGNED NON-PORTABLE ● low
193.192.251.116/30 ALSTOM-NET RIPE ASSIGNED PA ● low
194.65.55.184/30 ALSTOM-NET RIPE ASSIGNED PA ● low
194.65.55.188/30 ALSTOM-NET RIPE ASSIGNED PA ● low
194.137.86.144/30 ALSTOM-NET RIPE ASSIGNED PA ● low
195.46.17.240/29 Alstom RIPE ASSIGNED PA ● low
195.76.169.40/29 ALSTOM RIPE ASSIGNED PA ● low
195.77.88.64/29 ALSTOM RIPE ASSIGNED PA ● low
195.235.173.0/29 ALSTOM RIPE ASSIGNED PA ● low
212.41.134.96/27 Alstom RIPE ASSIGNED PA ● low
212.108.9.8/29 Alstom RIPE ASSIGNED PA ● low
212.163.40.208/29 ALSTOM RIPE ASSIGNED PA ● low
213.249.49.112/29 Alstom RIPE ASSIGNED PA ● low
217.40.6.32/29 Alstom RIPE ASSIGNED PA ● low
217.40.65.144/29 alstom RIPE ASSIGNED PA ● low
2a00:2381:f06f::/48 ALSTOM RIPE AGGREGATED-BY-LIR ● low

Network trust

what's this?
RPKI hygiene: A how networks compare →
96.7% of checked blocks have valid RPKI ROA coverage (29 of 30)
Possible discrepancies (1)

These blocks are registered to ALSTOM 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.

2a00:2381:f06f::/48 /48 authorized for AS2856 — British Telecommunications PLC

NIC Handles

AS12302-MNT AS6730-MNT BTNET-MNT CIP-MNT DATANET-NOC DUMY-RIPE DUMY-RIPE EIG1-AP EIG1-AP EVOLUTIO-MNT HZB2-AP HZB2-AP +13 more