AS15401 EOLAS-AS Orange Business Services SA

EOLAS-AS Orange Business Services SA · registered in France

IPv4 addresses8,96011 prefixes · <0.001% of announced IPv4

Rank in France#151largest network in FR by IPv4 space, of 1,375 · 0.01% of FR

Rank worldwide#9,733of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryFrance1,474 ASNs registered there

Open AS15401 in ASN lookup Look up an IP in this network (2.56.156.1) All networks in France

IPv4 prefixes

All 11 prefixes, in address order.

2.56.156.0/23
2.56.158.0/24
31.193.48.0/21
178.237.96.0/21
178.237.104.0/23
178.237.106.0/24
178.237.107.0/24
178.237.108.0/22
185.3.64.0/23
185.3.66.0/23
185.23.92.0/22

IPv6 prefixes

All 1 prefix.

2a00:4280::/32

Similar-sized networks in France

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AS52126#152 DigDeo-Cloud DIGDEO SAS8,704

AS197883#153 ASN-FR-SERINYA Serinya Telecom SAS8,704

AS198330#154 Xefi XEFI LYON SAS8,448

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