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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 |
| — |
| — |
| 0 |
| AS213104CZ | WIREIX FIBER TELECOM s.r.o. | — | — | 0 |
| AS211445CZ | meukralupy Mesto Kralupy nad Vltavou | — | — | 0 |
| AS198624CZ | Hexado Petr Balek trading as Hexado.pro | — | — | 0 |
| AS57823CZ | ASKKNET Libor Kotoucek | — | — | 0 |
| AS51463CZ | ASFAJNCOMCZ FAJNCOM s.r.o. | — | — | 0 |
| AS210811CZ | AKSYSTEM AK SYSTEM s.r.o. | — | — | 0 |
| AS50007CZ | LVNET-AS Reliable Communications s.r.o. | — | — | 0 |
| AS203743CZ | BroumNet ISP Alliance a.s. | — | — | 0 |
| AS22298CZ | BASTL Jan Vaclav | — | — | 0 |
| AS207575CZ | brabeczc-as Zahradnicke centrum Brabec, s.r.o. | — | 1 | 1 |
| AS206601CZ | ZELENADATA-AS FASTER CZ spol. s r.o. | — | — | 0 |
| AS3234CZ | Parliament of the Czech Republic | — | — | 0 |
| AS47627CZ | NIXSK-RS NIX.CZ z.s.p.o. | — | — | 0 |
| AS207887CZ | FIOBANKA-AS Fio banka, a.s. | — | — | 0 |
| AS213776CZ | ASTELECONNECT TeleConnect CZ s.r.o. | — | — | 0 |
| AS34070CZ | DATIN-AS BACKER COMPUTER s.r.o. | — | — | 0 |
| AS202906CZ | CZ-ACR Ministerstvo Obrany | — | — | 0 |
| AS207855CZ | ModernTV-Anycast SychrovNET s.r.o | — | — | 0 |
| AS213395CZ | NTXN NetX Networks a.s. | — | — | 0 |
| AS50100CZ | ModernTV-SK SychrovNET s.r.o | — | — | 0 |
| AS61981CZ | MACH3NET KLFREE NETWORKS, s.r.o. | — | — | 0 |
| AS201761CZ | GS-NET ISP Alliance a.s. | — | — | 0 |
| AS21142CZ | PRAGONET-TRANSIT-AS T-Mobile Czech Republic a.s. | — | — | 0 |
| AS197939CZ | CFLAREBG It services company s.r.o. | — | — | 0 |
| AS204150CZ | StormHost David Zakoucky | — | 1 | 1 |
| AS219423CZ | Nial Nial Company s.r.o. | — | — | 0 |
| AS29401CZ | SUPERNETWORKSK-AS SH.cz s.r.o. | — | — | 0 |
| AS206344CZ | AUKRO Fortion Networks, s.r.o. | — | — | 0 |
| AS206270CZ | TNETCZ-AS ISP Alliance a.s. | — | — | 0 |
| AS201457CZ | KOOPERATIVA-AS2 Kooperativa pojistovna, a.s., Vienna Insurance Group | — | — | 0 |
| AS41509CZ | EQUIT-AS Patria Finance, a.s. | — | — | 0 |
| AS57158CZ | ASMELVI ISP Alliance a.s. | — | — | 0 |
| AS46553CZ | AS46553 AS46553 s.r.o. | — | 1 | 1 |
| AS213927CZ | FIBERCZ FIBER CONNECTIONS s.r.o. | — | — | 0 |
| AS216021CZ | STEVIJO-AS Stefan Johannes Mayer | — | 1 | 1 |
| AS47834CZ | SOFTEXNCP-AS SOFTEX NCP, s.r.o. | — | — | 0 |
| AS44672CZ | DataSpring3 Cloud4com s.r.o. | — | — | 0 |
| AS215571CZ | ITIXO ITIXO s.r.o. | — | — | 0 |
| AS210325CZ | Airnetworks ISP Alliance a.s. | — | — | 0 |
| AS41711CZ | FREETEL-AS FreeTel, s.r.o. | — | — | 0 |
| AS207583CZ | technologicke-centrum-as Technologicke centrum a.s. | — | 1 | 1 |
| AS204543CZ | FHRNET Filip Hruska | — | — | 0 |
| AS43708CZ | METRONET DATAMAT CZ s.r.o. | — | — | 0 |
| AS2819CZ | GTSCZ T-Mobile Czech Republic a.s. | — | — | 0 |
| AS210951CZ | MIEGLNET Josef Miegl | — | 13 | 13 |
| AS198586CZ | HostNow HostNow, s.r.o. | — | — | 0 |