AS5398 InternetONE Internet one SRL

InternetONE Internet one SRL · registered in Italy

IPv4 addresses8,9603 prefixes · <0.001% of announced IPv4

Rank in Italy#159largest network in IT by IPv4 space, of 1,081 · 0.02% of IT

Rank worldwide#9,713of 79,396 networks with IPv4

IPv68 x /32 (524,289 x /48)2 prefixes

CountryItaly1,121 ASNs registered there

Open AS5398 in ASN lookup Look up an IP in this network (46.21.29.1) All networks in Italy

IPv4 prefixes

All 3 prefixes, in address order.

46.21.29.0/24
77.220.64.0/19
193.221.216.0/23

IPv6 prefixes

All 2 prefixes.

2001:67c:19e0::/48
2a0f:e880::/29

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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