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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 |
| 5.4K |
| 524.3K |
| 13 |
| AS197307CZ | bnet-internet_cz Core4Net, s.r.o. | 5.4K | 65.5K | 4 |
| AS200918CZ | ORELSOFT Pavel Zizka | 5.4K | 524.3K | 11 |
| AS198813CZ | SychrovNET SychrovNET s.r.o | 5.6K | 65.5K | 4 |
| AS44002CZ | SYS-DATACOM Sys-DataCom s.r.o. | 5.9K | 65.6K | 46 |
| AS44065CZ | NETAIR-AS NETAIR, s.r.o. | 6.1K | 524.3K | 3 |
| AS34222CZ | ZONER-AS ZONER a.s. | 6.1K | 65.5K | 3 |
| AS198605CZ | AVAST-AS-DC AVAST Software s.r.o. | 6.1K | 1K | 29 |
| AS29583CZ | UNIENT-AS Spinoco a.s. | 6.1K | — | 9 |
| AS43413CZ | ASNEW NEW TELEKOM, spol. s r.o. | 6.1K | 524.3K | 3 |
| AS207198CZ | KTKCZ Kabelova televize Koprivnice, s.r.o. | 6.1K | 524.3K | 4 |
| AS42000CZ | KAORA Futruy s.r.o. | 6.4K | 524.3K | 6 |
| AS25192CZ | CZNIC-AS CZ.NIC, z.s.p.o. | 6.4K | 65.5K | 12 |
| AS60592CZ | GRANSY Gransy s.r.o. | 6.4K | 196.6K | 20 |
| AS59479CZ | ASGEMNET GEMNET s.r.o. | 6.4K | 1 | 4 |
| AS197296CZ | UNITED_NETWORKS_SE United Networks SE | 6.7K | 524.3K | 5 |
| AS202895CZ | TFnet TFnet s.r.o. | 6.9K | 524.3K | 11 |
| AS28905CZ | BECOLINK-AS OMEGA plus Chrudim s.r.o. | 7.2K | — | 3 |
| AS35046CZ | OMEGAPLUS-AS OMEGA plus Chrudim s.r.o. | 7.2K | 81.9K | 5 |
| AS33883CZ | TRIONET-CZ-AS TRIOPTIMUM s.r.o. | 7.2K | 524.3K | 4 |
| AS42189CZ | EUROSIGNAL-AS Druzstvo EUROSIGNAL | 7.2K | 524.3K | 5 |
| AS49121CZ | INFTELE-AS Infinity Telecom, s.r.o. | 7.2K | 9 | 30 |
| AS25234CZ | ACTIVE24-AS ACTIVE 24, s.r.o. | 7.7K | 131.1K | 8 |
| AS50825CZ | UVT UVT Internet s.r.o. | 8.2K | 524.3K | 6 |
| AS57069CZ | ASDCC Dempsey and Clark s.r.o. | 8.2K | — | 1 |
| AS57279CZ | SAURONNET Sauron CZ s.r.o. | 8.2K | 65.5K | 4 |
| AS202237CZ | WICNET-AS Wic-Net, s.r.o. | 8.2K | 65.5K | 2 |
| AS8913CZ | IPNet Mopos Communications A.S. | 8.2K | 65.5K | 2 |
| AS198002CZ | CEZNET-AS CEZNET s.r.o. | 8.2K | 65.5K | 2 |
| AS47269CZ | HLUCIN-NET-AS Core4Net, s.r.o. | 8.2K | 524.3K | 6 |
| AS43542CZ | OptoNet-AS OptoNet Communication, spol. s.r.o. | 8.2K | 65.5K | 2 |
| AS47493CZ | WMS-AS CEZNET s.r.o. | 8.2K | 65.5K | 2 |
| AS57188CZ | RNET-AS ORKA systems, s.r.o. | 8.2K | 65.5K | 4 |
| AS29086CZ | GITY-AS GiTy, a.s. | 8.2K | 65.5K | 6 |
| AS33943CZ | CBEZDRAT-AS Eri Internet s.r.o. | 8.2K | 524.3K | 2 |
| AS201476CZ | Wolfnet ISP Alliance a.s. | 8.7K | 524.3K | 15 |
| AS43070CZ | JAW-AS JAW.cz s.r.o. | 8.7K | 196.6K | 9 |
| AS50833CZ | FIBERTEL-AS FIBER TELECOM s.r.o. | 9K | 4 | 9 |
| AS35613CZ | NETDATACOMM FASTER CZ spol. s r.o. | 9K | 131.1K | 6 |
| AS197798CZ | NET-CONNECT Net-Connect s.r.o. | 9.2K | 524.3K | 3 |
| AS41088CZ | CZNSYS "N_SYS s.r.o." | 9.2K | 65.5K | 4 |
| AS48574CZ | ASN-CZ-PLANET-A-48574 T-Mobile Czech Republic a.s. | 9.2K | — | 3 |
| AS39790CZ | WEB4U Web4U s.r.o. | 9.7K | 131.1K | 8 |
| AS47232CZ | ISPAlliance ISP Alliance a.s. | 10K | 1.8M | 16 |
| AS197019CZ | WEDOS WEDOS Internet, a.s. | 10.2K | 65.5K | 6 |
| AS47114CZ | ZLINNET SychrovNET s.r.o | 10.2K | 589.8K | 6 |
| AS39761CZ | ABAK ABAK, Co.Ltd. | 10.2K | 589.8K | 8 |