AS31221 NLT-FR nLighten France SAS

NLT-FR nLighten France SAS · registered in France

IPv4 addresses6,4007 prefixes · <0.001% of announced IPv4

Rank in France#188largest network in FR by IPv4 space, of 1,375 · <0.01% of FR

Rank worldwide#11,955of 79,396 networks with IPv4

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

CountryFrance1,474 ASNs registered there

Open AS31221 in ASN lookup Look up an IP in this network (5.252.56.1) All networks in France

IPv4 prefixes

All 7 prefixes, in address order.

5.252.56.0/23
5.252.58.0/23
185.43.36.0/23
185.43.39.0/24
193.135.126.0/24
193.218.120.0/24
217.13.48.0/20

IPv6 prefixes

All 1 prefix.

2a02:6f0::/32

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AS29104#189 THALESGROUP-AS Thales Services Numeriques SAS6,400

AS3299#190 Societe Generale S.A.6,400

AS49434#191 FBWNETWORKS FBW NETWORKS SAS6,144

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