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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 |
| 1K |
| — |
| 1 |
| AS201608CZ | HovNet-AS HovNet-SERVIS s.r.o. | 1K | 65.5K | 4 |
| AS204351CZ | NAM NAM system, a.s. | 1K | — | 4 |
| AS205002CZ | AS_IWAO CUBESOL, s.r.o. | 1K | 524.3K | 2 |
| AS196952CZ | ASBEZVANET BEZVANET s.r.o. | 1K | 65.5K | 4 |
| AS200874CZ | LBC-AS-CZ Liberecky kraj | 1K | 65.5K | 2 |
| AS200600CZ | SEZNAM-CZ-DC Seznam.cz datova centra, s.r.o. | 1K | 524.3K | 2 |
| AS202556CZ | ASKRIVONET Blond & Brown s.r.o. | 1K | — | 1 |
| AS47681CZ | RIOMEDIA O2 Czech Republic, a.s. | 1K | — | 1 |
| AS59664CZ | ASOPTON Opton s.r.o. | 1K | — | 1 |
| AS201559CZ | UNITED_NETWORKS_SE United Networks SE | 1K | 262.1K | 2 |
| AS56344CZ | ASVIRIDIUM Viridium.cz s.r.o. | 1K | 1 | 5 |
| AS202605CZ | MORNet-CZ EMPECOM, s.r.o. | 1K | 524.3K | 2 |
| AS205982CZ | ASmraknet Mraknet s.r.o. | 1K | — | 1 |
| AS199490CZ | INTERCONNECT INTERCONNECT s.r.o. | 1K | 65.5K | 2 |
| AS203376CZ | MAILKIT Mailkit s.r.o. | 1K | 524.3K | 6 |
| AS198103CZ | CCS-CZ CCS Ceska spolecnost pro platebni karty s.r.o. | 1K | — | 3 |
| AS200635CZ | INTERCONNECT pragmatel s.r.o. | 1K | 65.5K | 2 |
| AS202657CZ | Hnojnik Pavel Jochim | 1K | 524.3K | 2 |
| AS201625CZ | UNITED_NETWORKS_SE United Networks SE | 1K | 524.3K | 2 |
| AS13199CZ | DOUBRAVA-NET Jaroslav Doubrava | 1K | 524.3K | 2 |
| AS57081CZ | SCARFBOT Scarfbot Technologies, s.r.o. | 1K | 524.3K | 2 |
| AS205968CZ | ASGENERALNET GeneralNet s.r.o. | 1K | 524.3K | 2 |
| AS48889CZ | GLOBECORP-AS-CZ GLOBECORP a.s. | 1K | — | 1 |
| AS201116CZ | VybezekNET Vybezek.NET s.r.o. | 1K | 524.3K | 2 |
| AS56353CZ | FIRSTLINE-AS First Line Software s.r.o. | 1K | — | 1 |
| AS51382CZ | COMANET-NETWORK Ing. Leos Janouch | 1K | 1 | 2 |
| AS12344CZ | CZECHITC CZECH IT CLUSTER, druzstvo | 1K | 131.1K | 2 |
| AS199405CZ | OSLAVANY-NET-AS Oslavany.NET, spolek | 1K | 65.5K | 2 |
| AS208466CZ | egdsro EG.D, s.r.o. | 1K | — | 1 |
| AS199298CZ | GIGANETcz Jan Stetina | 1K | 65.5K | 2 |
| AS44984CZ | Fortion Fortion Networks, s.r.o. | 1K | 65.5K | 2 |
| AS199722CZ | SBERBANKCZ Sberbank CZ, a.s. v likvidaci | 1K | — | 1 |
| AS209795CZ | SPC-net SPC-net s.r.o. | 1K | 524.3K | 3 |
| AS204567CZ | ASPCKBnet PCKBnet s.r.o. | 1K | — | 1 |
| AS209135CZ | FlowmonNetworks Flowmon Networks a.s. | 1K | 65.5K | 4 |
| AS202874CZ | ZL-AS-CZ Zlinsky Kraj | 1K | 524.3K | 2 |
| AS61425CZ | MLADAFRONTA AdminIT, s. r. o. | 1K | — | 1 |
| AS203411CZ | FORTUNA-GAME-PUB FORTUNA GAME a.s. | 1K | — | 4 |
| AS203328CZ | PVfreenet PVfree.net, z. s. | 1K | 524.3K | 2 |
| AS209947CZ | mwifi M-wifi internet s.r.o. | 1K | 524.3K | 2 |
| AS57560CZ | ASXLNET XLNET s.r.o. | 1K | 1 | 3 |
| AS206177CZ | sitepark SitePark s.r.o. | 1K | 524.3K | 2 |
| AS51744CZ | ASJABLONKA Non-profit organization Jablonka.cz | 1K | 1 | 2 |
| AS201163CZ | KB-AS-CZ Komercni banka, a.s. | 1K | — | 3 |
| AS203365CZ | OPTETNETWORK Optet network, s. r. o. | 1K | 524.3K | 2 |
| AS204886CZ | metro-hu Metropolitni sit Humpolec spol. s r.o. | 1K | 65.5K | 2 |