AS25192 CZNIC-AS CZ.NIC, z.s.p.o.

CZNIC-AS CZ.NIC, z.s.p.o. · registered in Czechia

IPv4 addresses5,6325 prefixes · <0.001% of announced IPv4

Rank in Czechia#98largest network in CZ by IPv4 space, of 570 · 0.07% of CZ

Rank worldwide#12,755of 79,396 networks with IPv4

IPv61 x /32 (65,541 x /48)6 prefixes

CountryCzechia599 ASNs registered there

Open AS25192 in ASN lookup Look up an IP in this network (185.43.132.1) All networks in Czechia

IPv4 prefixes

All 5 prefixes, in address order.

185.43.132.0/23
185.43.134.0/24
193.29.206.0/24
194.0.12.0/23
217.31.192.0/20

IPv6 prefixes

All 6 prefixes.

2001:678:1::/48
2001:678:f::/48
2001:678:10::/48
2001:1488::/32
2001:148f:fffb::/48
2001:148f:fffd::/48

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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