AS44821 ONEOP Koesio Nord Ouest SAS

ONEOP Koesio Nord Ouest SAS · registered in France

IPv4 addresses4,6087 prefixes · <0.001% of announced IPv4

Rank in France#246largest network in FR by IPv4 space, of 1,375 · <0.01% of FR

Rank worldwide#14,405of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryFrance1,474 ASNs registered there

Open AS44821 in ASN lookup Look up an IP in this network (5.253.132.1) All networks in France

IPv4 prefixes

All 7 prefixes, in address order.

5.253.132.0/23
5.253.134.0/24
85.118.52.0/22
149.86.172.0/22
185.23.138.0/23
185.148.252.0/22
185.240.157.0/24

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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