AS56665 TANGO-PROXIMUS_NXT Proximus Luxembourg S.A.

TANGO-PROXIMUS_NXT Proximus Luxembourg S.A. · registered in Luxembourg

IPv4 addresses45,05617 prefixes · 0.001% of announced IPv4

Rank in Luxembourg#9largest network in LU by IPv4 space, of 103 · 3.12% of LU

Rank worldwide#4,097of 79,396 networks with IPv4

IPv68 x /32 (528,387 x /48)4 prefixes

CountryLuxembourg105 ASNs registered there

Open AS56665 in ASN lookup Look up an IP in this network (31.204.88.1) All networks in Luxembourg

IPv4 prefixes

All 17 prefixes, in address order.

31.204.88.0/24
31.204.90.0/23
31.204.92.0/22
78.111.137.0/24
94.252.0.0/17
185.3.44.0/22
185.40.60.0/22
212.66.64.0/22
212.66.68.0/22
212.66.72.0/22
212.66.76.0/24
212.66.77.0/24
212.66.78.0/23
212.66.80.0/22
212.66.84.0/22
212.66.88.0/22
212.66.92.0/22

IPv6 prefixes

All 4 prefixes.

2a00:4180:1::/48
2a00:4180:2::/47
2a00:4180:1000::/36
2a04:81c0::/29

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AS15965#11 AS15965 CEGECOM S.A.21,760

AS206610#12 MIXVOIP Mixvoip S.A.20,992

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