// CZ
Czechia
Europe
ASNs
715
Organizations
746
IPv4 blocks
1,771
IPv4 hosts
9,559,232
IPv6 blocks
685
Largest organizations (746)
| Company | Registry | ASNs | IPv4 hosts | IPv6 blocks |
|---|---|---|---|---|
| O2 Czech Republic, a.s. | RIPENCC | 16 | 2,019,328 | 21 |
| Vodafone Czech Republic a.s. | RIPENCC | 3 | 1,195,008 | 3 |
| T-Mobile Czech Republic a.s. | RIPENCC | 16 | 1,002,496 | 16 |
| ALFA TELECOM s.r.o. | RIPENCC | 1 | 526,848 | 1 |
| DHL Information Services (Europe) s.r.o | ARIN | 1 | 393,216 | 0 |
| JON.CZ s.r.o. | RIPENCC | 4 | 347,136 | 4 |
| Quantcom, a.s. | RIPENCC | 2 | 265,216 | 3 |
| NetArt Group s.r.o. | RIPENCC | 1 | 184,832 | 2 |
| Reliable Communications s.r.o. | RIPENCC | 4 | 169,472 | 6 |
| CETIN a.s. | RIPENCC | 2 | 152,576 | 2 |
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| ASN | Organization | Registry | Status | Allocated |
|---|---|---|---|---|
| AS219423 | Nial Company s.r.o. | RIPENCC | allocated | 2026-06-16 |
| AS219440 | FunFirst s.r.o. | RIPENCC | allocated | 2026-06-15 |
| AS197256 | Rene Winkler | RIPENCC | allocated | 2026-05-26 |
| AS197806 | Andrei Rys | RIPENCC | allocated | 2026-05-06 |
| AS197939 | It services company s.r.o. | RIPENCC | allocated | 2026-05-05 |
| AS198586 | HostNow, s.r.o. | RIPENCC | allocated | 2026-04-22 |
| AS198624 | Petr Balek trading as Hexado.pro | RIPENCC | allocated | 2026-04-21 |
| AS199734 | Petr Kyvala | RIPENCC | allocated | 2026-03-26 |
| AS200068 | Stepan Pechman | RIPENCC | allocated | 2026-03-16 |
| AS209268 | HODL s.r.o. | RIPENCC | allocated | 2026-03-09 |
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