AS31246 NETBOX-AS O2 Czech Republic, a.s.

NETBOX-AS O2 Czech Republic, a.s. · registered in Czechia

IPv4 addresses66,5605 prefixes · 0.002% of announced IPv4

Rank in Czechia#16largest network in CZ by IPv4 space, of 570 · 0.80% of CZ

Rank worldwide#2,624of 79,396 networks with IPv4

IPv610 x /32 (655,360 x /48)2 prefixes

CountryCzechia599 ASNs registered there

Open AS31246 in ASN lookup Look up an IP in this network (46.39.160.1) All networks in Czechia

IPv4 prefixes

All 5 prefixes, in address order.

46.39.160.0/19
83.240.0.0/17
95.82.128.0/18
185.51.240.0/22
213.155.224.0/19

IPv6 prefixes

All 2 prefixes.

2001:4cc8::/31
2a0a:cac0::/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