Internet Service Providers in Czechia

Top 20 organizations with the largest IP allocations in Czechia

Czechia

Top 20 organizations with the largest IP allocations


Rank Name IPv4 addresses IPv6 /64 networks AS numbers Prefixes
O2 Czech Republic, a.s. 2,255,104 1.5 x 235 2 73
T-Mobile Czech Republic a.s. 2,038,181 1.13 x 237 3 358
CESNET z.s.p.o. 857,088 232 1 23
4 ALFA TELECOM s.r.o. 526,336 0 1 10
5 PODA a.s. 333,824 1.5 x 233 2 27
6 CETIN a.s. 329,472 1.13 x 235 1 10
7 Vodafone Czech Republic a.s. 174,592 235 1 10
8 Nej.cz s.r.o. 168,960 236 3 18
9 DHL Information Services (Europe) s.r.o 151,040 1.63 x 221 1 25
10 CD-Telematika a.s. 122,368 232 1 14
11 RADIOKOMUNIKACE a.s. 107,776 232 1 7
12 Casablanca INT 84,992 1.25 x 235 1 17
13 Ipex Ltd. 79,872 232 1 7
14 Libli s.r.o. 71,680 1.38 x 235 7 26
15 Brno University of Technology 67,840 1.63 x 235 2 14
16 SMART Comp. a.s. 67,584 1.25 x 235 1 9
17 Master Internet s.r.o. 59,648 1.25 x 236 1 46
18 Fortech s.r.o. 58,368 235 1 5
19 itself s.r.o. 57,856 1.56 x 236 1 18
20 CoProSys a.s. 54,528 232 1 17