AS397025 Alstom Alstom Transport SA

Alstom Alstom Transport SA · registered in France

IPv4 addresses5122 prefixes · <0.001% of announced IPv4

Rank in France#1,017largest network in FR by IPv4 space, of 1,375 · <0.01% of FR

Rank worldwide#58,291of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryFrance1,474 ASNs registered there

Open AS397025 in ASN lookup Look up an IP in this network (81.31.28.1) All networks in France

IPv4 prefixes

All 2 prefixes, in address order.

81.31.28.0/24
160.223.180.0/24

Similar-sized networks in France

ASNNameIPv4 addresses

AS216329#1014 Centaurus_Agena3000 Centaurus Group512

AS218998#1015 TAIPANTRANSIT Johan Garcia512

AS219325#1016 FR-SAFEO SAFEO SAS512

AS210051#1018 telli TELLI SAS256

AS205816#1019 JSFB Elkaim Elie256

AS48732#1020 PEERES-TELECOM Martial Duboc256

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources