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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 |
| 2 |
| AS214032CZ | BUDOVIT BUDOVIT s.r.o | 256 | 1 | 2 |
| AS34487CZ | southpraguenet SouthPrague.Net, z.s. | 256 | 524.3K | 2 |
| AS44104CZ | LCJ-AS LCJ Invest, a.s. | 256 | — | 1 |
| AS207391CZ | EDGROUP E LINKX a.s. | 256 | — | 1 |
| AS196943CZ | ASVISSADO Vissado s.r.o. | 256 | 1 | 2 |
| AS199806CZ | DCIT-AS-CZ DCIT, a.s. | 256 | 1 | 2 |
| AS213559CZ | asmybv1 MyOffice, s.r.o. | 256 | 524.3K | 2 |
| AS60218CZ | ASIT8 IT8 - Informacni technologie s.r.o. | 256 | 1 | 2 |
| AS204917CZ | MiJa-AS Mi-Ja Javornik s.r.o. | 256 | — | 1 |
| AS211085CZ | amccomp-master-praha mapnet IT services s.r.o. | 256 | 524.3K | 3 |
| AS203299CZ | IHNET NetX Networks a.s. | 256 | 65.5K | 2 |
| AS206908CZ | PL-FORTUNA-GAME FORTUNA GAME a.s. | 256 | — | 1 |
| AS197875CZ | UNIPETROLRPA ORLEN Unipetrol RPA s.r.o. | 256 | — | 1 |
| AS201464CZ | ok-net ISP Alliance a.s. | 256 | — | 1 |
| AS198494CZ | PREGIS PREGIS, a.s | 256 | 1 | 2 |
| AS210367CZ | KZCR Krajska zdravotni, a.s. | 256 | 1 | 2 |
| AS215354CZ | ENTRANOVA-AS ENTRANOVA IT s.r.o. | 256 | — | 1 |
| AS211700CZ | DEXUS Dexus Internet s.r.o. | 256 | 65.5K | 2 |
| AS200070CZ | CZNIC-AS2 CZ.NIC, z.s.p.o. | 256 | 1 | 2 |
| AS51025CZ | CONNECT-TST-AS VSHosting s.r.o. | 256 | — | 1 |
| AS215718CZ | IBAGroup IBA Group a.s. | 256 | — | 1 |
| AS49262CZ | ATCCZ1 Ataccama Software, s.r.o. | 256 | 524.3K | 2 |
| AS208143CZ | amccomp-unin mapnet IT services s.r.o. | 256 | 1 | 2 |
| AS207451CZ | PEARHOST-AS Ales Hruska | 256 | 1 | 2 |
| AS216006CZ | BLAZEHOST Vojtech Smrz | 256 | 16 | 2 |
| AS205724CZ | TSB-AS T.S.BOHEMIA a.s. | 256 | — | 1 |
| AS211594CZ | PEERNET Kleissner Investments s.r.o. | 256 | 524.3K | 2 |
| AS202643CZ | NETSERV-AS NetSERV, s.r.o. | 256 | 524.3K | 2 |
| AS214224CZ | CESKASITNET CeskaSit.net Networks s.r.o. | 256 | — | 1 |
| AS200474CZ | CRFreeNet CRFreeNet, z.s. | 256 | 65.5K | 2 |
| AS198586CZ | HostNow HostNow, s.r.o. | 256 | 1 | 2 |
| AS213359CZ | MAZEL_BIZ_AS Jan Korinek | 256 | 524.3K | 2 |
| AS214886CZ | ASGREENHOSTING Green hosting s.r.o. | 256 | — | 1 |
| AS206159CZ | cz-fresh Fresh Data s.r.o. | 256 | 65.5K | 2 |
| AS211816CZ | ASERONX ERON X s.r.o. | 256 | — | 1 |
| AS198624CZ | Hexado Petr Balek trading as Hexado.pro | 256 | 257 | 3 |
| AS205026CZ | WVG-CLOUD-AS wvg solution s.r.o. | 256 | — | 1 |
| AS204113CZ | CSIS Security Information Service | 256 | — | 1 |
| AS39453CZ | UZIS-AS Ustav zdravotnickych informaci a statistiky Ceske republiky | 256 | — | 1 |
| AS210498CZ | Vysocina-hSOC Kraj Vysocina | 256 | 256 | 2 |
| AS202996CZ | Helkor Ondrej Vrana | 256 | 256 | 2 |
| AS206683CZ | MSIC-AS Moravskoslezske inovacni centrum Ostrava, a.s. | 256 | — | 1 |
| AS200646CZ | BHSEC-PRG BH securities, a.s. | 256 | — | 1 |
| AS214757CZ | Jakub-Krsa Jakub Krsa | 256 | 123 | 19 |
| AS196849CZ | ASBARTYSOVA MO BYRTUS s.r.o. | 256 | — | 1 |
| AS199665CZ | RADIOLINKplus1-NETWORK Hana Juzkova | 256 | 1 | 2 |