Czech Republic

Top 20 organizations with the largest IP allocations in Czech Republic

Czech Republic

Top 20 organizations with the largest IP allocations


Rank Name IPv4 addresses IPv6 /64 networks AS numbers Prefixes
T-Mobile Czech Republic a.s. 1,683,320 1.31 x 237 3 618
O2 Czech Republic, a.s. 1,563,904 1.25 x 234 2 217
CESNET z.s.p.o. 848,896 232 1 22
4 PODA a.s. 221,184 233 1 28
5 BENESTRA, s.r.o. 210,688 1.25 x 235 1 84
6 Vodafone Czech Republic a.s. 174,592 232 1 10
7 Ceska Telekomunikacni Infrastruktura a.s 149,248 1.13 x 235 1 53
8 CD-Telematika a.s. 120,832 232 1 13
9 RIO Media a.s. 116,736 233 2 10
10 COMA s.r.o. 111,616 232 1 10
11 RADIOKOMUNIKACE a.s. 107,776 232 1 7
12 DHL Information Services (Europe) s.r.o 86,272 1.5 x 221 1 48
13 Ipex Ltd. 86,016 232 1 5
14 Casablanca INT 82,944 1.25 x 235 1 44
15 SMART Comp. a.s. 67,584 1.25 x 235 1 9
16 Brno University of Technology 66,560 1.75 x 235 2 19
17 Master Internet s.r.o. 61,440 1.13 x 237 1 88
18 CoProSys a.s. 59,136 232 1 39
19 Fortech s.r.o. 58,368 235 1 5
20 itself s.r.o. 57,856 1.56 x 236 1 18