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How Czechia ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
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. | 265.5K | 11 |
| AS30764CZ | PODA-AS PODA a.s. | 220.4K | 21 |
| AS42908CZ | CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. | 183.3K | 44 |
| 256 |
| — |
| 1 |
| AS202073CZ | ABS-ACLOUD-CLIENTS1 Itego a.s. | 256 | — | 1 |
| AS28892CZ | CUZK-NET Cesky urad zememericky a katastralni | 256 | 1 | 2 |
| AS198586CZ | HostNow HostNow, s.r.o. | 256 | 1 | 2 |
| AS206468CZ | TREBORADICENET-AS Treboradice.net z.s. | 256 | 65.5K | 2 |
| AS41359CZ | TELEFONZENTRALE-AS Telefonzentrale s.r.o. | 256 | — | 1 |
| AS44104CZ | LCJ-AS LCJ Invest, a.s. | 256 | — | 1 |
| AS198121CZ | DNS4EU Whalebone, s.r.o. | 256 | 1 | 2 |
| AS34487CZ | southpraguenet SouthPrague.Net, z.s. | 256 | 524.3K | 2 |
| AS202996CZ | Helkor Ondrej Vrana | 256 | 256 | 2 |
| AS199665CZ | RADIOLINKplus1-NETWORK Hana Juzkova | 256 | 1 | 2 |
| AS208422CZ | INFINITY-AS Infinity Telecom, s.r.o. | 256 | 1 | 2 |
| AS56717CZ | RESAL-AS OG Soft s.r.o. | 256 | 1 | 2 |
| AS211085CZ | amccomp-master-praha mapnet IT services s.r.o. | 256 | 524.3K | 3 |
| AS199059CZ | MauriceWard Maurice Ward & Co., s.r.o. | 256 | — | 1 |
| AS205026CZ | WVG-CLOUD-AS wvg solution s.r.o. | 256 | — | 1 |
| AS215806CZ | CZ-ALBERT-AS Albert Ceska republika, s.r.o. | 256 | — | 1 |
| AS208143CZ | amccomp-unin mapnet IT services s.r.o. | 256 | 1 | 2 |
| AS50097CZ | IPVOIP-AS IPVOIP s.r.o. | 256 | — | 1 |
| AS196762CZ | ASALKOM ALKOM Security, a.s. | 256 | — | 1 |
| AS200474CZ | CRFreeNet CRFreeNet, z.s. | 256 | 65.5K | 2 |
| AS210915CZ | DOMINIKPASTO Dominik Pastorek | 256 | 10 | 4 |
| AS206591CZ | ALZACZ-AS Alza.cz a.s. | 256 | — | 1 |
| AS213558CZ | spinoco-ushc Spinoco a.s. | 256 | — | 1 |
| AS201263CZ | AS-BRIX-CDN Brno University of Technology | 256 | 1 | 2 |
| AS214224CZ | CESKASITNET CeskaSit.net Networks s.r.o. | 256 | — | 1 |
| AS201594CZ | CTU_AS4 Czech Telecommunication Office | 256 | 65.5K | 2 |
| AS210367CZ | KZCR Krajska zdravotni, a.s. | 256 | 1 | 2 |
| AS9053CZ | VSHOSTING-CDN VSHosting s.r.o. | 256 | 3 | 4 |
| AS209719CZ | CZ-MOD Ministerstvo Obrany | 256 | 1 | 2 |
| AS207391CZ | EDGROUP E LINKX a.s. | 256 | — | 1 |
| AS197806CZ | STRLCAT Andrei Rys | 256 | 293 | 9 |
| AS51025CZ | CONNECT-TST-AS VSHosting s.r.o. | 256 | — | 1 |
| AS206908CZ | PL-FORTUNA-GAME FORTUNA GAME a.s. | 256 | — | 1 |
| AS196943CZ | ASVISSADO Vissado s.r.o. | 256 | 1 | 2 |
| AS199806CZ | DCIT-AS-CZ DCIT, a.s. | 256 | 1 | 2 |
| AS200646CZ | BHSEC-PRG BH securities, a.s. | 256 | — | 1 |
| AS198494CZ | PREGIS PREGIS, a.s | 256 | 1 | 2 |
| AS207354CZ | TeleConnect Teleconnect CZ s.r.o. | 256 | — | 1 |
| AS210498CZ | Vysocina-hSOC Kraj Vysocina | 256 | 256 | 2 |
| AS207231CZ | FuturNET-AS FuturNET, s.r.o. | 256 | 524.3K | 2 |
| AS213359CZ | MAZEL_BIZ_AS Jan Korinek | 256 | 524.3K | 2 |
| AS15380CZ | ANSCZ Air Navigation Services of the Czech Republic, state enterprise | 256 | 1 | 2 |
| AS213559CZ | asmybv1 MyOffice, s.r.o. | 256 | 524.3K | 2 |
| AS211816CZ | ASERONX ERON X s.r.o. | 256 | — | 1 |
| AS51278CZ | IGNUM-ANYCAST-AS Webglobe, s.r.o. | 256 | 1 | 2 |
| AS60584CZ | PRIME-AS Prime Studio s.r.o. | 256 | — | 1 |