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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 |
| 1K |
| 524.3K |
| 2 |
| AS49095CZ | P12com PRAHA12.com s.r.o. | 1K | 524.3K | 3 |
| AS196952CZ | ASBEZVANET BEZVANET s.r.o. | 1K | 65.5K | 4 |
| AS199350CZ | mfcr Ministerstvo financi | 1K | 65.5K | 2 |
| AS206951CZ | BMBGreen BMB-Green s.r.o. | 1K | 524.3K | 2 |
| AS47749CZ | ORIFLAME-AS ORIFLAME SOFTWARE s.r.o. | 1K | 1 | 4 |
| AS12344CZ | CZECHITC CZECH IT CLUSTER, druzstvo | 1K | 131.1K | 2 |
| AS47727CZ | WARNETCZ-AS Warnet.cz s.r.o. | 1K | 65.5K | 2 |
| AS208466CZ | egdsro EG.D, s.r.o. | 1K | — | 1 |
| AS202719CZ | PRANET Pranet s.r.o. | 1K | 65.5K | 2 |
| AS202774CZ | comtex ISP Alliance a.s. | 1K | 524.3K | 2 |
| AS43523CZ | DESIGN-AS A.T.S. INTERNATIONAL s.r.o | 1K | — | 1 |
| AS207153CZ | cz-stream-it Stream-iT, s.r.o. | 1K | — | 1 |
| AS204772CZ | RSD-CZ Reditelstvi silnic a dalnic s.p. | 1K | 65.5K | 2 |
| AS29504CZ | LBCFREE Freenet Liberec, z.s. | 1K | 524.3K | 2 |
| AS207886CZ | ECOMPEU-CZ ECOMP spol s r.o. | 1K | 524.3K | 6 |
| AS25238CZ | MONETA-CZ MONETA Money Bank, a.s. | 1K | 1 | 5 |
| AS203365CZ | OPTETNETWORK Optet network, s. r. o. | 1K | 524.3K | 2 |
| AS202979CZ | ngaservices NGA Services, spol. s r.o. | 1K | 524.3K | 2 |
| AS208060CZ | DRMAX-BDC Dr. Max BDC, s.r.o. | 1K | 524.3K | 4 |
| AS205300CZ | ASSUNFOX Sunfox s.r.o. | 1K | — | 1 |
| AS200600CZ | SEZNAM-CZ-DC Seznam.cz datova centra, s.r.o. | 1K | 524.3K | 2 |
| AS201608CZ | HovNet-AS HovNet-SERVIS s.r.o. | 1K | 65.5K | 4 |
| AS209135CZ | FlowmonNetworks Flowmon Networks a.s. | 1K | 65.5K | 4 |
| AS51744CZ | ASJABLONKA Non-profit organization Jablonka.cz | 1K | 1 | 2 |
| AS208659CZ | innc INNC s.r.o. | 1K | 524.3K | 2 |
| AS201625CZ | UNITED_NETWORKS_SE United Networks SE | 1K | 524.3K | 2 |
| AS204372CZ | PPFBANKA PPF banka a.s. | 1K | — | 2 |
| AS48602CZ | CONNECTPLUS Connect plus s.r.o. | 1K | 524.3K | 5 |
| AS198171CZ | WebglobeRS Webglobe, s.r.o. | 1K | 65.5K | 2 |
| AS204567CZ | ASPCKBnet PCKBnet s.r.o. | 1K | — | 1 |
| AS196916CZ | BUSINESSCOM-AS BusinessCom CZ spol. s r.o. | 1K | — | 2 |
| AS59925CZ | GIGASERVER Seonet Multimedia s.r.o. | 1K | 65.5K | 2 |
| AS58220CZ | PEGASNET Tomas Budai | 1K | 65.5K | 2 |
| AS208805CZ | SpolNet INTERCONNECT s.r.o. | 1K | — | 1 |
| AS57904CZ | ASVEVYNET Vevynet s.r.o. | 1K | — | 1 |
| AS56344CZ | ASVIRIDIUM Viridium.cz s.r.o. | 1K | 1 | 5 |
| AS206287CZ | LYSAFREE-NET LysaFree, z.s. | 1K | — | 1 |
| AS199298CZ | GIGANETcz Jan Stetina | 1K | 65.5K | 2 |
| AS205002CZ | AS_IWAO CUBESOL, s.r.o. | 1K | 524.3K | 2 |
| AS62405CZ | Brouzdal Brouzdal, s.r.o. | 1K | 65.5K | 2 |
| AS204409CZ | cz-Prestonet Prestonet s.r.o. | 1K | 65.5K | 2 |
| AS203550CZ | I2NET i2net cz s.r.o. | 1K | 524.3K | 2 |
| AS50067CZ | cesal CESAL s.r.o. | 1K | 524.3K | 5 |
| AS204394CZ | CORTEX Cortex, a.s. | 1K | 524.3K | 2 |
| AS202551CZ | INERA INERA.CZ s.r.o. | 1K | 524.3K | 2 |
| AS12984CZ | PILSFREE PilsFree, z. s. | 1K | 524.3K | 2 |