AS25424 INEXT-CZ CEZNET s.r.o.

INEXT-CZ CEZNET s.r.o. · registered in Czechia

IPv4 addresses33,7927 prefixes · 0.001% of announced IPv4

Rank in Czechia#24largest network in CZ by IPv4 space, of 570 · 0.41% of CZ

Rank worldwide#4,666of 79,396 networks with IPv4

IPv616 x /32 (1,048,576 x /48)2 prefixes

CountryCzechia599 ASNs registered there

Open AS25424 in ASN lookup Look up an IP in this network (37.9.192.1) All networks in Czechia

IPv4 prefixes

All 7 prefixes, in address order.

37.9.192.0/21
77.92.192.0/19
85.92.32.0/19
91.109.32.0/21
185.157.196.0/22
188.244.48.0/20
212.111.0.0/19

IPv6 prefixes

All 2 prefixes.

2a00:e580::/29
2a0a:3340::/29

Similar-sized networks in Czechia

ASNNameIPv4 addresses

AS24806#21 INTERNET-CZ INTERNET CZ, a.s.45,824

AS6740#22 INEXT-CZ-ADA CEZNET s.r.o.41,984

AS21430#23 WIA-AS WIA spol. s.r.o.41,216

AS39906#25 COPROSYS CoProSys a.s.33,792

AS41046#26 NEJTV-AS O2 Czech Republic, a.s.32,768

AS39392#27 SuperNetwork SH.cz s.r.o.31,744

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