AS39906 COPROSYS CoProSys a.s.

COPROSYS CoProSys a.s. · registered in Czechia

IPv4 addresses33,79231 prefixes · 0.001% of announced IPv4

Rank in Czechia#25largest network in CZ by IPv4 space, of 570 · 0.41% of CZ

Rank worldwide#4,674of 79,396 networks with IPv4

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

CountryCzechia599 ASNs registered there

Open AS39906 in ASN lookup Look up an IP in this network (5.59.34.1) All networks in Czechia

IPv4 prefixes

All 31 prefixes, in address order.

5.59.34.0/24
77.104.192.0/23
77.104.195.0/24
77.104.196.0/22
77.104.200.0/22
77.104.204.0/24
77.104.205.0/24
77.104.206.0/23
77.104.208.0/23
77.104.211.0/24
77.104.212.0/22
77.104.217.0/24
77.104.218.0/23
77.104.220.0/23
77.104.222.0/24
77.104.224.0/20
77.104.241.0/24
77.104.242.0/24
77.104.243.0/24
77.104.244.0/24
77.104.246.0/23
77.104.248.0/21
80.82.144.0/20
81.92.144.0/20
93.170.84.0/22
94.138.96.0/20
94.138.112.0/22
94.138.124.0/22
95.46.33.0/24
178.23.232.0/21
185.67.132.0/22

IPv6 prefixes

All 2 prefixes.

2001:678:e54::/48
2a02:da8::/32

Similar-sized networks in Czechia

ASNNameIPv4 addresses

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

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

AS25424#24 INEXT-CZ CEZNET s.r.o.33,792

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

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

AS15685#28 CASABLANCA-AS CASABLANCA INT a.s.31,232

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