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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 |
| 524.3K |
| 2 |
| AS198624CZ | Hexado Petr Balek trading as Hexado.pro | 256 | 257 | 3 |
| AS28892CZ | CUZK-NET Cesky urad zememericky a katastralni | 256 | 1 | 2 |
| AS49244CZ | SCANCOM Scancom s.r.o. | 256 | 524.3K | 2 |
| AS206591CZ | ALZACZ-AS Alza.cz a.s. | 256 | — | 1 |
| AS211594CZ | PEERNET Kleissner Investments s.r.o. | 256 | 524.3K | 2 |
| AS207354CZ | TeleConnect Teleconnect CZ s.r.o. | 256 | — | 1 |
| AS39453CZ | UZIS-AS Ustav zdravotnickych informaci a statistiky Ceske republiky | 256 | — | 1 |
| AS206159CZ | cz-fresh Fresh Data s.r.o. | 256 | 65.5K | 2 |
| AS205064CZ | rockawayx-uae RockawayX Infra s.r.o. | 256 | — | 1 |
| AS206908CZ | PL-FORTUNA-GAME FORTUNA GAME a.s. | 256 | — | 1 |
| AS51278CZ | IGNUM-ANYCAST-AS Webglobe, s.r.o. | 256 | 1 | 2 |
| AS213387CZ | TESUNET TeSuNet s.r.o. | 256 | — | 1 |
| AS199604CZ | KU-AS OLOMOUCKY KRAJ | 256 | 1 | 2 |
| AS209719CZ | CZ-MOD Ministerstvo Obrany | 256 | 1 | 2 |
| AS198494CZ | PREGIS PREGIS, a.s | 256 | 1 | 2 |
| AS215676CZ | GOODHOST GoodHost s.r.o. | 256 | 1 | 2 |
| AS201464CZ | ok-net ISP Alliance a.s. | 256 | — | 1 |
| AS207231CZ | FuturNET-AS FuturNET, s.r.o. | 256 | 524.3K | 2 |
| AS202996CZ | Helkor Ondrej Vrana | 256 | 256 | 2 |
| AS208143CZ | amccomp-unin mapnet IT services s.r.o. | 256 | 1 | 2 |
| AS15380CZ | ANSCZ Air Navigation Services of the Czech Republic, state enterprise | 256 | 1 | 2 |
| AS197806CZ | STRLCAT Andrei Rys | 256 | 293 | 9 |
| AS216006CZ | BLAZEHOST Vojtech Smrz | 256 | 16 | 2 |
| AS202857CZ | CZ-AS INIZIO Internet Media s.r.o. | 256 | — | 1 |
| AS210367CZ | KZCR Krajska zdravotni, a.s. | 256 | 1 | 2 |
| AS213559CZ | asmybv1 MyOffice, s.r.o. | 256 | 524.3K | 2 |
| AS9053CZ | VSHOSTING-CDN VSHosting s.r.o. | 256 | 3 | 4 |
| AS204113CZ | CSIS Security Information Service | 256 | — | 1 |
| AS211274CZ | QCZ Quadruple a.s. | 256 | 262.1K | 5 |
| AS49580CZ | MONETPLUS-AS Monet +, a.s. | 512 | — | 2 |
| AS207850CZ | UstiNET-AS HovNet-SERVIS s.r.o. | 512 | — | 2 |
| AS207696CZ | DPP-AS Dopravni podnik hl.m. Prahy, a.s. | 512 | 1 | 2 |
| AS51727CZ | SKODAPOWER-AS Doosan Skoda Power s.r.o | 512 | — | 1 |
| AS204172CZ | TTCINFRA-CZ TTC TELEKOMUNIKACE s.r.o. | 512 | — | 1 |
| AS202131CZ | Wave-net ISP Alliance a.s. | 512 | — | 1 |
| AS20701CZ | CZNIC-AS3 CZ.NIC, z.s.p.o. | 512 | 2 | 4 |
| AS200871CZ | rockawayx-eu RockawayX Infra s.r.o. | 512 | — | 2 |
| AS198519CZ | RBcz Raiffeisenbank a.s. | 512 | — | 2 |
| AS21082CZ | AS-CZVP Reliable Communications s.r.o. | 512 | — | 2 |
| AS215602CZ | sikmo sikmo s.r.o. | 512 | — | 2 |
| AS25321CZ | G4S-NET Brink's Cash Solutions (CZ), a.s. | 512 | — | 1 |
| AS214703CZ | FAKAHEDA-AS Core4Net, s.r.o. | 512 | — | 1 |
| AS49142CZ | HBO HBO Europe s.r.o. | 512 | — | 1 |
| AS201934CZ | SATAN-NET HD Internet s.r.o. | 512 | — | 2 |
| AS215353CZ | InPacketNetwork Josef Hrabe | 512 | — | 2 |
| AS210061CZ | VinariceNET Ladislav Kepl | 512 | — | 1 |