AS41088 CZNSYS "N_SYS s.r.o."

CZNSYS "N_SYS s.r.o." · registered in Czechia

IPv4 addresses9,2162 prefixes · <0.001% of announced IPv4

Rank in Czechia#67largest network in CZ by IPv4 space, of 570 · 0.11% of CZ

Rank worldwide#9,457of 79,396 networks with IPv4

IPv61 x /32 (65,537 x /48)2 prefixes

CountryCzechia599 ASNs registered there

Open AS41088 in ASN lookup Look up an IP in this network (89.190.64.1) All networks in Czechia

IPv4 prefixes

All 2 prefixes, in address order.

89.190.64.0/19
185.125.128.0/22

IPv6 prefixes

All 2 prefixes.

2001:678:e8::/48
2a00:bfe0::/32

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AS48574#68 ASN-CZ-PLANET-A-48574 T-Mobile Czech Republic a.s.9,216

AS201476#69 Wolfnet ISP Alliance a.s.8,704

AS43070#70 JAW-AS JAW.cz s.r.o.8,704

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