AS203901 ATSYS-ASN ATLANTIC SYSTEMES SARL

ATSYS-ASN ATLANTIC SYSTEMES SARL · registered in France

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in France#1,300largest network in FR by IPv4 space, of 1,375 · <0.01% of FR

Rank worldwide#73,847of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryFrance1,474 ASNs registered there

Open AS203901 in ASN lookup Look up an IP in this network (185.101.30.1) All networks in France

IPv4 prefixes

All 1 prefix, in address order.

185.101.30.0/24

Similar-sized networks in France

ASNNameIPv4 addresses

AS203698#1297 MOJI MOJI SAS256

AS203770#1298 MATOOMA-AS Matooma SAS256

AS203773#1299 YONI-GROUP-AS SAS YONI ENTREPRISE SERVICES - YES256

AS204238#1301 REELIT Com Network SAS256

AS204517#1302 PVCP GIE PVCP Services256

AS204802#1303 freedom-network FREEDOM NETWORK256

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