AS209671 QRATOR-SW Qrator Labs CZ s.r.o.

QRATOR-SW Qrator Labs CZ s.r.o. · registered in Czechia

IPv4 addresses1,7924 prefixes · <0.001% of announced IPv4

Rank in Czechia#253largest network in CZ by IPv4 space, of 570 · 0.02% of CZ

Rank worldwide#24,645of 79,396 networks with IPv4

IPv62 x /32 (131,072 x /48)2 prefixes

CountryCzechia599 ASNs registered there

Open AS209671 in ASN lookup Look up an IP in this network (83.147.21.1) All networks in Czechia

IPv4 prefixes

All 4 prefixes, in address order.

83.147.21.0/24
151.244.91.0/24
163.5.133.0/24
185.104.208.0/22

IPv6 prefixes

All 2 prefixes.

2a06:3340::/32
2a09:de80::/32

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AS60606#254 Blindspot PRO-ZETA a.s.1,792

AS41030#255 ASNOVOTNYCZ Jaroslav Novotny1,792

AS51424#256 ASAGNET Jiri Sperl1,792

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