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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 |
| 65.5K |
| 2 |
| AS201116CZ | VybezekNET Vybezek.NET s.r.o. | 1K | 524.3K | 2 |
| AS12344CZ | CZECHITC CZECH IT CLUSTER, druzstvo | 1K | 131.1K | 2 |
| AS209795CZ | SPC-net SPC-net s.r.o. | 1K | 524.3K | 3 |
| AS201533CZ | UNITED_NETWORKS_SE United Networks SE | 1K | — | 1 |
| AS197353CZ | INGMS_CZ NN Management Services, s.r.o. | 1K | — | 3 |
| AS61425CZ | MLADAFRONTA AdminIT, s. r. o. | 1K | — | 1 |
| AS204943CZ | NTVcable NTV cable s.r.o. | 1K | 524.3K | 2 |
| AS205002CZ | AS_IWAO CUBESOL, s.r.o. | 1K | 524.3K | 2 |
| AS62405CZ | Brouzdal Brouzdal, s.r.o. | 1K | 65.5K | 2 |
| AS203328CZ | PVfreenet PVfree.net, z. s. | 1K | 524.3K | 2 |
| AS209947CZ | mwifi M-wifi internet s.r.o. | 1K | 524.3K | 2 |
| AS59925CZ | GIGASERVER Seonet Multimedia s.r.o. | 1K | 65.5K | 2 |
| AS196916CZ | BUSINESSCOM-AS BusinessCom CZ spol. s r.o. | 1K | — | 2 |
| AS201608CZ | HovNet-AS HovNet-SERVIS s.r.o. | 1K | 65.5K | 4 |
| AS57081CZ | SCARFBOT Scarfbot Technologies, s.r.o. | 1K | 524.3K | 2 |
| AS20643CZ | CZ-PILSFREESERVIS-AS PilsFree servis, s.r.o. | 1K | 524.3K | 2 |
| AS48602CZ | CONNECTPLUS Connect plus s.r.o. | 1K | 524.3K | 5 |
| AS60086CZ | VALVERA Valvera s.r.o. | 1K | 65.5K | 2 |
| AS44770CZ | SAVVY-AS Savvy s.r.o. | 1K | 1 | 2 |
| AS201447CZ | AS_CNB The Czech National Bank | 1K | — | 4 |
| AS204772CZ | RSD-CZ Reditelstvi silnic a dalnic s.p. | 1K | 65.5K | 2 |
| AS205300CZ | ASSUNFOX Sunfox s.r.o. | 1K | — | 1 |
| AS50067CZ | cesal CESAL s.r.o. | 1K | 524.3K | 5 |
| AS204394CZ | CORTEX Cortex, a.s. | 1K | 524.3K | 2 |
| AS57007CZ | ASNITEX NITEX ISP s.r.o. | 1K | 1 | 2 |
| AS208060CZ | DRMAX-BDC Dr. Max BDC, s.r.o. | 1K | 524.3K | 4 |
| AS205044CZ | MOSES MOSES Internet s.r.o. | 1K | 524.3K | 2 |
| AS50415CZ | Ahosting Ahosting a.s. | 1K | 524.3K | 2 |
| AS210111CZ | netcraftsolutions Netcraft Solutions s.r.o. | 1K | 524.3K | 2 |
| AS212876CZ | CZ-PARDUBICKYKRAJ Pardubicky Kraj | 1K | 524.3K | 2 |
| AS204886CZ | metro-hu Metropolitni sit Humpolec spol. s r.o. | 1K | 65.5K | 2 |
| AS198103CZ | CCS-CZ CCS Ceska spolecnost pro platebni karty s.r.o. | 1K | — | 3 |
| AS44984CZ | Fortion Fortion Networks, s.r.o. | 1K | 65.5K | 2 |
| AS203376CZ | MAILKIT Mailkit s.r.o. | 1K | 524.3K | 6 |
| AS199298CZ | GIGANETcz Jan Stetina | 1K | 65.5K | 2 |
| AS205234CZ | bkom Brnenske komunikace a.s. | 1K | — | 4 |
| AS202551CZ | INERA INERA.CZ s.r.o. | 1K | 524.3K | 2 |
| AS204570CZ | hornackynet KAZA.cz s.r.o. | 1K | — | 1 |
| AS57560CZ | ASXLNET XLNET s.r.o. | 1K | 1 | 3 |
| AS212224CZ | Traveliana Coolhousing s.r.o. | 1K | 65.5K | 2 |
| AS201625CZ | UNITED_NETWORKS_SE United Networks SE | 1K | 524.3K | 2 |
| AS13199CZ | DOUBRAVA-NET Jaroslav Doubrava | 1K | 524.3K | 2 |
| AS200828CZ | THOSTING-AS TERMS a.s. | 1K | 524.3K | 2 |
| AS59871CZ | HEUREKA_GROUP Heureka Group a.s. | 1K | 5 | 6 |
| AS202605CZ | MORNet-CZ EMPECOM, s.r.o. | 1K | 524.3K | 2 |
| AS34475CZ | Agrostroj Agrostroj Pelhrimov, a.s. | 1K | — | 4 |