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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.
715 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. | 265.5K | 11 |
| AS30764CZ | PODA-AS PODA a.s. | 219.4K | 18 |
| AS42908CZ | CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. | 183.3K | 44 |
| — |
| — |
| 0 |
| AS15485CZ | GTSNOVERA T-Mobile Czech Republic a.s. | — | — | 0 |
| AS47627CZ | NIXSK-RS NIX.CZ z.s.p.o. | — | — | 0 |
| AS201457CZ | KOOPERATIVA-AS2 Kooperativa pojistovna, a.s., Vienna Insurance Group | — | — | 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 |
| AS206321CZ | startech STARTECH spol. s r.o. | — | 1 | 1 |
| AS206601CZ | ZELENADATA-AS FASTER CZ spol. s r.o. | — | — | 0 |
| AS29401CZ | SUPERNETWORKSK-AS SH.cz s.r.o. | — | — | 0 |
| AS200059CZ | AIRWEB-ISP ISP Alliance a.s. | — | — | 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 |
| AS211445CZ | meukralupy Mesto Kralupy nad Vltavou | — | — | 0 |
| AS213395CZ | NTXN NetX Networks a.s. | — | — | 0 |
| AS21142CZ | PRAGONET-TRANSIT-AS T-Mobile Czech Republic a.s. | — | — | 0 |
| AS49931CZ | SITKOM-AS STARNET, s.r.o. | — | — | 0 |
| AS201761CZ | GS-NET ISP Alliance a.s. | — | — | 0 |
| AS203450CZ | LogicPrim Edera Group a.s. | — | — | 0 |
| AS197939CZ | CFLAREBG It services company s.r.o. | — | — | 0 |
| AS59747CZ | NIX-DR NIX.CZ z.s.p.o. | — | 1 | 1 |
| AS219423CZ | Nial Nial Company s.r.o. | — | — | 0 |
| AS43895CZ | ZENTIVA-NET Zentiva Group, a.s | — | — | 0 |
| AS3234CZ | Parliament of the Czech Republic | — | — | 0 |
| AS213104CZ | WIREIX FIBER TELECOM s.r.o. | — | — | 0 |
| AS203342CZ | RudolfNet ISP Alliance a.s. | — | — | 0 |
| AS216241CZ | VSB_CZ Vysoka skola banska - Technicka univerzita Ostrava | — | — | 0 |
| AS57158CZ | ASMELVI ISP Alliance a.s. | — | — | 0 |
| AS202733CZ | OKCOMP OK COMP s.r.o. | — | 1 | 1 |
| AS213927CZ | FIBERCZ FIBER CONNECTIONS s.r.o. | — | — | 0 |
| AS210401CZ | Batlify_Internet Batlify Internet s.r.o. | — | 1 | 1 |
| AS47834CZ | SOFTEXNCP-AS SOFTEX NCP, s.r.o. | — | — | 0 |
| AS44672CZ | DataSpring3 Cloud4com s.r.o. | — | — | 0 |
| AS199734CZ | Petr Petr Kyvala | — | — | 0 |
| AS210325CZ | Airnetworks ISP Alliance a.s. | — | — | 0 |
| AS41711CZ | FREETEL-AS FreeTel, s.r.o. | — | — | 0 |
| AS8882CZ | AS8882 AS8882 s.r.o. | — | 1 | 1 |
| AS61981CZ | MACH3NET KLFREE NETWORKS, s.r.o. | — | — | 0 |
| AS43708CZ | METRONET DATAMAT CZ s.r.o. | — | — | 0 |
| AS2819CZ | GTSCZ T-Mobile Czech Republic a.s. | — | — | 0 |
| AS46553CZ | AS46553 AS46553 s.r.o. | — | 1 | 1 |
| AS50100CZ | ModernTV-SK SychrovNET s.r.o | — | — | 0 |