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How Czechia ranks worldwide on dormant space, the transfer market, routing security and address density.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to Czechia over time.
The largest autonomous systems registered to Czechia by IPv4 footprint.
Czechia against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
714 autonomous systems registered to Czechia. Click an AS for detail.
| 11 |
| AS2571CZ | DHLNET - DHL Information Services (Europe) s.r.o | 438.5K | 100 |
| AS29208CZ | QUANTCOM-AS Quantcom, a.s. | 274.4K | 41 |
| AS28725CZ | CETIN-AS CETIN a.s. | 265.2K | 10 |
| AS30764CZ | PODA-AS PODA a.s. | 220.4K | 21 |
| AS42908CZ | CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. | 183.3K | 44 |
| 1K |
| — |
| 4 |
| AS50415CZ | Ahosting Ahosting a.s. | 1K | 524.3K | 2 |
| AS57081CZ | SCARFBOT Scarfbot Technologies, s.r.o. | 1K | 524.3K | 2 |
| AS202551CZ | INERA INERA.CZ s.r.o. | 1K | 524.3K | 2 |
| AS199405CZ | OSLAVANY-NET-AS Oslavany.NET, spolek | 1K | 65.5K | 2 |
| AS58220CZ | PEGASNET Tomas Budai | 1K | 65.5K | 2 |
| AS202874CZ | ZL-AS-CZ Zlinsky Kraj | 1K | 524.3K | 2 |
| AS59664CZ | ASOPTON Opton s.r.o. | 1K | — | 1 |
| AS208659CZ | innc INNC s.r.o. | 1K | 524.3K | 2 |
| AS199490CZ | INTERCONNECT INTERCONNECT s.r.o. | 1K | 65.5K | 2 |
| AS204394CZ | CORTEX Cortex, a.s. | 1K | 524.3K | 2 |
| AS202556CZ | ASKRIVONET Blond & Brown s.r.o. | 1K | — | 1 |
| AS205345CZ | HORALNET HoralNET s.r.o. | 1K | 524.3K | 2 |
| AS209135CZ | FlowmonNetworks Flowmon Networks a.s. | 1K | 65.5K | 4 |
| AS29504CZ | LBCFREE Freenet Liberec, z.s. | 1K | 524.3K | 2 |
| AS13199CZ | DOUBRAVA-NET Jaroslav Doubrava | 1K | 524.3K | 2 |
| AS56353CZ | FIRSTLINE-AS First Line Software s.r.o. | 1K | — | 1 |
| AS210111CZ | netcraftsolutions Netcraft Solutions s.r.o. | 1K | 524.3K | 2 |
| AS204772CZ | RSD-CZ Reditelstvi silnic a dalnic s.p. | 1K | 65.5K | 2 |
| AS204886CZ | metro-hu Metropolitni sit Humpolec spol. s r.o. | 1K | 65.5K | 2 |
| AS207886CZ | ECOMPEU-CZ ECOMP spol s r.o. | 1K | 524.3K | 6 |
| AS56344CZ | ASVIRIDIUM Viridium.cz s.r.o. | 1K | 1 | 5 |
| AS57007CZ | ASNITEX NITEX ISP s.r.o. | 1K | 1 | 2 |
| AS200635CZ | INTERCONNECT pragmatel s.r.o. | 1K | 65.5K | 2 |
| AS12344CZ | CZECHITC CZECH IT CLUSTER, druzstvo | 1K | 131.1K | 2 |
| AS202719CZ | PRANET Pranet s.r.o. | 1K | 65.5K | 2 |
| AS206287CZ | LYSAFREE-NET LysaFree, z.s. | 1K | — | 1 |
| AS205300CZ | ASSUNFOX Sunfox s.r.o. | 1K | — | 1 |
| AS199722CZ | SBERBANKCZ Sberbank CZ, a.s. v likvidaci | 1K | — | 1 |
| AS205968CZ | ASGENERALNET GeneralNet s.r.o. | 1K | 524.3K | 2 |
| AS208060CZ | DRMAX-BDC Dr. Max BDC, s.r.o. | 1K | 524.3K | 4 |
| AS207015CZ | POSITION Position s.r.o. | 1K | 65.5K | 2 |
| AS208805CZ | SpolNet INTERCONNECT s.r.o. | 1K | — | 1 |
| AS49573CZ | ASJIMMY JimmyNet s.r.o. | 1K | 524.3K | 2 |
| AS50067CZ | cesal CESAL s.r.o. | 1K | 524.3K | 5 |
| AS203550CZ | I2NET i2net cz s.r.o. | 1K | 524.3K | 2 |
| AS201625CZ | UNITED_NETWORKS_SE United Networks SE | 1K | 524.3K | 2 |
| AS206784CZ | Josefov Internet Praha Josefov s.r.o. | 1K | 524.3K | 2 |
| AS211731CZ | MPSV-AS-CZ Ministry of labour and social affairs | 1K | 1 | 3 |
| AS196952CZ | ASBEZVANET BEZVANET s.r.o. | 1K | 65.5K | 4 |
| AS34475CZ | Agrostroj Agrostroj Pelhrimov, a.s. | 1K | — | 4 |
| AS204372CZ | PPFBANKA PPF banka a.s. | 1K | — | 2 |
| AS213152CZ | NBU Narodni bezpecnostni urad Czech Republic | 1K | 524.3K | 3 |
| AS204943CZ | NTVcable NTV cable s.r.o. | 1K | 524.3K | 2 |
| AS204570CZ | hornackynet KAZA.cz s.r.o. | 1K | — | 1 |
| AS198143CZ | CESKAPOSTA-AS Ceska Posta s.p. | 1K | 1 | 4 |
| AS197895CZ | ONYX-AS ONYX engineering, spol. s r.o. | 1K | 65.5K | 2 |