AS41157 NINE-IX-BACKBONE-ASN-L3-EDGE-CACHE oui.do/netsys SAS

NINE-IX-BACKBONE-ASN-L3-EDGE-CACHE oui.do/netsys SAS · registered in France

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in France#1,094largest network in FR by IPv4 space, of 1,375 · <0.01% of FR

Rank worldwide#60,434of 79,396 networks with IPv4

IPv6255 x /488 prefixes

CountryFrance1,474 ASNs registered there

Open AS41157 in ASN lookup Look up an IP in this network (81.201.178.1) All networks in France

IPv4 prefixes

All 1 prefix, in address order.

81.201.178.0/24

IPv6 prefixes

All 8 prefixes.

2a0f:3400:501::/48
2a0f:3400:502::/47
2a0f:3400:504::/46
2a0f:3400:508::/45
2a0f:3400:510::/44
2a0f:3400:520::/43
2a0f:3400:540::/42
2a0f:3400:580::/41

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AS216190#1097 OCASDEV FBW NETWORKS SAS256

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