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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 |
| 65.5K |
| 2 |
| AS198143CZ | CESKAPOSTA-AS Ceska Posta s.p. | 1K | 1 | 4 |
| AS201559CZ | UNITED_NETWORKS_SE United Networks SE | 1K | 262.1K | 2 |
| AS209947CZ | mwifi M-wifi internet s.r.o. | 1K | 524.3K | 2 |
| AS29504CZ | LBCFREE Freenet Liberec, z.s. | 1K | 524.3K | 2 |
| AS44770CZ | SAVVY-AS Savvy s.r.o. | 1K | 1 | 2 |
| AS204372CZ | PPFBANKA PPF banka a.s. | 1K | — | 2 |
| AS59871CZ | HEUREKA_GROUP Heureka Group a.s. | 1K | 5 | 6 |
| AS201608CZ | HovNet-AS HovNet-SERVIS s.r.o. | 1K | 65.5K | 4 |
| AS205345CZ | HORALNET HoralNET s.r.o. | 1K | 524.3K | 2 |
| AS209834CZ | brnonet KAZA.cz s.r.o. | 1K | — | 1 |
| AS59664CZ | ASOPTON Opton s.r.o. | 1K | — | 1 |
| AS49095CZ | P12com PRAHA12.com s.r.o. | 1K | 524.3K | 3 |
| AS209621CZ | dobnet DOBNET, z.s. | 1K | 524.3K | 2 |
| AS57007CZ | ASNITEX NITEX ISP s.r.o. | 1K | 1 | 2 |
| AS57904CZ | ASVEVYNET Vevynet s.r.o. | 1K | — | 1 |
| AS212224CZ | Traveliana Coolhousing s.r.o. | 1K | 65.5K | 2 |
| AS198814CZ | ASALPHASTYLSOFT ALPHA StylSoft, s.r.o. | 1K | 65.5K | 2 |
| AS207015CZ | POSITION Position s.r.o. | 1K | 65.5K | 2 |
| AS203376CZ | MAILKIT Mailkit s.r.o. | 1K | 524.3K | 6 |
| AS203328CZ | PVfreenet PVfree.net, z. s. | 1K | 524.3K | 2 |
| AS56344CZ | ASVIRIDIUM Viridium.cz s.r.o. | 1K | 1 | 5 |
| AS49573CZ | ASJIMMY JimmyNet s.r.o. | 1K | 524.3K | 2 |
| AS60086CZ | VALVERA Valvera s.r.o. | 1K | 65.5K | 2 |
| AS199298CZ | GIGANETcz Jan Stetina | 1K | 65.5K | 2 |
| AS201163CZ | KB-AS-CZ Komercni banka, a.s. | 1K | — | 3 |
| AS196952CZ | ASBEZVANET BEZVANET s.r.o. | 1K | 65.5K | 4 |
| AS202874CZ | ZL-AS-CZ Zlinsky Kraj | 1K | 524.3K | 2 |
| AS39455CZ | Tlapnet-SK-AS Jiri Tlapak | 1K | — | 1 |
| AS204351CZ | NAM NAM system, a.s. | 1K | — | 4 |
| AS202979CZ | ngaservices NGA Services, spol. s r.o. | 1K | 524.3K | 2 |
| AS204567CZ | ASPCKBnet PCKBnet s.r.o. | 1K | — | 1 |
| AS47727CZ | WARNETCZ-AS Warnet.cz s.r.o. | 1K | 65.5K | 2 |
| AS202657CZ | Hnojnik Pavel Jochim | 1K | 524.3K | 2 |
| AS208060CZ | DRMAX-BDC Dr. Max BDC, s.r.o. | 1K | 524.3K | 4 |
| AS203365CZ | OPTETNETWORK Optet network, s. r. o. | 1K | 524.3K | 2 |
| AS201533CZ | UNITED_NETWORKS_SE United Networks SE | 1K | — | 1 |
| AS197353CZ | INGMS_CZ NN Management Services, s.r.o. | 1K | — | 3 |
| AS207886CZ | ECOMPEU-CZ ECOMP spol s r.o. | 1K | 524.3K | 6 |
| AS56353CZ | FIRSTLINE-AS First Line Software s.r.o. | 1K | — | 1 |
| AS51449CZ | KTUO-AS Kabelova televize Usti nad Orlici, spol. s r. o. | 1K | 65.5K | 5 |
| AS202719CZ | PRANET Pranet s.r.o. | 1K | 65.5K | 2 |
| AS200635CZ | INTERCONNECT pragmatel s.r.o. | 1K | 65.5K | 2 |
| AS211731CZ | MPSV-AS-CZ Ministry of labour and social affairs | 1K | 1 | 3 |
| AS204394CZ | CORTEX Cortex, a.s. | 1K | 524.3K | 2 |
| AS41779CZ | LAJSINET LajsiNET s.r.o. | 1K | 524.3K | 2 |
| AS57560CZ | ASXLNET XLNET s.r.o. | 1K | 1 | 3 |