AS43757 ICZAS-CZ ICZ a.s.

ICZAS-CZ ICZ a.s. · registered in Czechia

IPv4 addresses2,3042 prefixes · <0.001% of announced IPv4

Rank in Czechia#187largest network in CZ by IPv4 space, of 570 · 0.03% of CZ

Rank worldwide#20,773of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryCzechia599 ASNs registered there

Open AS43757 in ASN lookup Look up an IP in this network (78.31.24.1) All networks in Czechia

IPv4 prefixes

All 2 prefixes, in address order.

78.31.24.0/21
192.108.126.0/24

IPv6 prefixes

All 1 prefix.

2001:67c:1578::/48

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ASNNameIPv4 addresses

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AS6881#186 NIXCZ NIX.CZ z.s.p.o.2,304

AS198101#188 KOOPERATIVA-AS Kooperativa pojistovna, a.s., Vienna Insurance Group2,048

AS204165#189 CZNETSRO-AS Cznet s.r.o.2,048

AS206420#190 KabelServis KABEL servis Praha spol. s r.o.2,048

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