AS197731 TUXIS The Internet Engineering Group B.V.

TUXIS The Internet Engineering Group B.V. · registered in the Netherlands

IPv4 addresses7,1689 prefixes · <0.001% of announced IPv4

Rank in Netherlands#178largest network in NL by IPv4 space, of 1,026 · 0.02% of NL

Rank worldwide#11,374of 79,396 networks with IPv4

IPv62 x /32 (131,072 x /48)9 prefixes

CountryNetherlands1,098 ASNs registered there

Open AS197731 in ASN lookup Look up an IP in this network (31.3.104.1) All networks in Netherlands

IPv4 prefixes

All 9 prefixes, in address order.

31.3.104.0/21
45.91.118.0/23
45.137.196.0/23
91.190.107.0/24
158.173.56.0/23
158.173.117.0/24
185.67.224.0/22
185.119.28.0/22
185.148.20.0/22

IPv6 prefixes

All 9 prefixes.

2a03:27a0::/32
2a03:7900::/38
2a03:7900:400::/39
2a03:7900:600::/39
2a03:7900:800::/37
2a03:7900:1000::/36
2a03:7900:2000::/35
2a03:7900:4000::/34
2a03:7900:8000::/33

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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