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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.
717 autonomous systems registered to Czechia. Click an AS for detail.
| 14 |
| AS2571CZ | DHLNET - DHL Information Services (Europe) s.r.o | 438.5K | 101 |
| AS29208CZ | QUANTCOM-AS Quantcom, a.s. | 274.4K | 41 |
| AS28725CZ | CETIN-AS CETIN a.s. | 266.5K | 12 |
| AS30764CZ | PODA-AS PODA a.s. | 220.4K | 21 |
| AS42908CZ | CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. | 183.3K | 44 |
| MiJa-AS Mi-Ja Javornik s.r.o. |
| 256 |
| — |
| 1 |
| AS215676CZ | GOODHOST GoodHost s.r.o. | 256 | 1 | 2 |
| AS206908CZ | PL-FORTUNA-GAME FORTUNA GAME a.s. | 256 | — | 1 |
| AS60218CZ | ASIT8 IT8 - Informacni technologie s.r.o. | 256 | 1 | 2 |
| AS198121CZ | DNS4EU Whalebone, s.r.o. | 256 | 2 | 3 |
| AS199665CZ | RADIOLINKplus1-NETWORK Hana Juzkova | 256 | 1 | 2 |
| AS201594CZ | CTU_AS4 Czech Telecommunication Office | 256 | 65.5K | 2 |
| AS62298CZ | CSC Computer Systems Consulting s.r.o. | 256 | 524.3K | 2 |
| AS51025CZ | CONNECT-TST-AS VSHosting s.r.o. | 256 | — | 1 |
| AS211334CZ | Master_IT_Technologies-2 MASTER IT Technologies, a.s. | 256 | — | 1 |
| AS49244CZ | SCANCOM Scancom s.r.o. | 256 | 524.3K | 2 |
| AS205947CZ | NDC-ICT-SOLUTIONS NDC ICT Solutions s.r.o. | 256 | — | 1 |
| AS214224CZ | CESKASITNET CeskaSit.net Networks s.r.o. | 256 | — | 1 |
| AS201464CZ | ok-net ISP Alliance a.s. | 256 | — | 1 |
| AS210367CZ | KZCR Krajska zdravotni, a.s. | 256 | 1 | 2 |
| AS212859CZ | KronosNet KXCOMM s.r.o. | 256 | 524.3K | 2 |
| AS215260CZ | EmeraldG-Net Emerald Group s.r.o. | 256 | — | 1 |
| AS215806CZ | CZ-ALBERT-AS Albert Ceska republika, s.r.o. | 256 | — | 1 |
| AS49262CZ | ATCCZ1 Ataccama Software, s.r.o. | 256 | 524.3K | 2 |
| AS39453CZ | UZIS-AS Ustav zdravotnickych informaci a statistiky Ceske republiky | 256 | — | 1 |
| AS205064CZ | rockawayx-uae RockawayX Infra s.r.o. | 256 | — | 1 |
| AS196943CZ | ASVISSADO Vissado s.r.o. | 256 | 1 | 2 |
| AS201922CZ | amccomp-turany mapnet IT services s.r.o. | 256 | 1 | 2 |
| AS28892CZ | CUZK-NET Cesky urad zememericky a katastralni | 256 | 1 | 2 |
| AS215718CZ | IBAGroup IBA Group a.s. | 256 | — | 1 |
| AS207451CZ | PEARHOST-AS Ales Hruska | 256 | 1 | 2 |
| AS58215CZ | Omniline-net-as Omniline Investment s.r.o. | 256 | — | 1 |
| AS213387CZ | TESUNET TeSuNet s.r.o. | 256 | — | 1 |
| AS209719CZ | CZ-MOD Ministerstvo Obrany | 256 | 1 | 2 |
| AS50097CZ | IPVOIP-AS IPVOIP s.r.o. | 256 | — | 1 |
| AS211274CZ | QCZ Quadruple a.s. | 256 | 262.1K | 5 |
| AS213558CZ | spinoco-ushc Spinoco a.s. | 256 | — | 1 |
| AS206159CZ | cz-fresh Fresh Data s.r.o. | 256 | 65.5K | 2 |
| AS207231CZ | FuturNET-AS FuturNET, s.r.o. | 256 | 524.3K | 2 |
| AS196762CZ | ASALKOM ALKOM Security, a.s. | 256 | — | 1 |
| AS200070CZ | CZNIC-AS2 CZ.NIC, z.s.p.o. | 256 | 2 | 3 |
| AS202643CZ | NETSERV-AS NetSERV, s.r.o. | 256 | 524.3K | 2 |
| AS197875CZ | UNIPETROLRPA ORLEN Unipetrol RPA s.r.o. | 256 | — | 1 |
| AS199604CZ | KU-AS OLOMOUCKY KRAJ | 256 | 1 | 2 |
| AS198494CZ | PREGIS PREGIS, a.s | 256 | 1 | 2 |
| AS204113CZ | CSIS Security Information Service | 256 | — | 1 |
| AS213559CZ | asmybv1 MyOffice, s.r.o. | 256 | 524.3K | 2 |
| AS211137CZ | ISPSERVICES ISP Services spol. s.r.o., | 256 | — | 1 |
| AS202073CZ | ABS-ACLOUD-CLIENTS1 Itego a.s. | 256 | — | 1 |
| AS207391CZ | EDGROUP E LINKX a.s. | 256 | — | 1 |
| AS56717CZ | RESAL-AS OG Soft s.r.o. | 256 | 1 | 2 |
| AS218589CZ | DATAPATH-AS Jan Benes | 256 | 512 | 3 |