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. 2,256,384 1.5 x 235 2 83
T-Mobile Czech Republic a.s. 2,037,409 1.13 x 237 3 354
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 Ceska Telekomunikacni Infrastruktura a.s 329,216 1.13 x 235 1 9
7 Vodafone Czech Republic a.s. 174,592 235 1 10
8 Nej.cz s.r.o. 167,936 236 2 17
9 CD-Telematika a.s. 122,368 232 1 14
10 RADIOKOMUNIKACE a.s. 107,776 232 1 7
11 DHL Information Services (Europe) s.r.o 87,296 1.63 x 221 1 32
12 Casablanca INT 84,992 1.25 x 235 1 17
13 Ipex Ltd. 79,872 232 1 7
14 Brno University of Technology 67,840 1.63 x 235 2 14
15 SMART Comp. a.s. 67,584 1.25 x 235 1 9
16 Master Internet s.r.o. 60,672 1.31 x 236 1 48
17 Fortech s.r.o. 58,368 235 1 5
18 itself s.r.o. 57,856 1.56 x 236 1 18
19 CoProSys a.s. 54,528 232 1 17
20 ha-vel internet s.r.o. 53,504 232 1 15