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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 |
| — |
| 4 |
| AS201447CZ | AS_CNB The Czech National Bank | 1K | — | 4 |
| AS202872CZ | KMENET KME, spol. s r. o. | 1K | 65.5K | 3 |
| AS204372CZ | PPFBANKA PPF banka a.s. | 1K | — | 2 |
| AS56827CZ | ASMIRNETCZ mirnet s.r.o. | 1K | — | 1 |
| AS199600CZ | Virtis Virtis s.r.o. | 1K | 524.3K | 2 |
| AS204886CZ | metro-hu Metropolitni sit Humpolec spol. s r.o. | 1K | 65.5K | 2 |
| AS57560CZ | ASXLNET XLNET s.r.o. | 1K | 1 | 3 |
| AS203550CZ | I2NET i2net cz s.r.o. | 1K | 524.3K | 2 |
| AS207015CZ | POSITION Position s.r.o. | 1K | 65.5K | 2 |
| AS204570CZ | hornackynet KAZA.cz s.r.o. | 1K | — | 1 |
| AS59871CZ | HEUREKA_GROUP Heureka Group a.s. | 1K | 5 | 6 |
| AS204567CZ | ASPCKBnet PCKBnet s.r.o. | 1K | — | 1 |
| AS205044CZ | MOSES MOSES Internet s.r.o. | 1K | 524.3K | 2 |
| AS25238CZ | MONETA-CZ MONETA Money Bank, a.s. | 1K | 1 | 5 |
| AS44770CZ | SAVVY-AS Savvy s.r.o. | 1K | 1 | 2 |
| AS198346CZ | NETFORMS-AS NETFORMS s.r.o. | 1K | 196.6K | 7 |
| AS205968CZ | ASGENERALNET GeneralNet s.r.o. | 1K | 524.3K | 2 |
| AS51744CZ | ASJABLONKA Non-profit organization Jablonka.cz | 1K | 1 | 2 |
| AS59664CZ | ASOPTON Opton s.r.o. | 1K | — | 1 |
| AS201163CZ | KB-AS-CZ Komercni banka, a.s. | 1K | — | 3 |
| AS204394CZ | CORTEX Cortex, a.s. | 1K | 524.3K | 2 |
| AS205300CZ | ASSUNFOX Sunfox s.r.o. | 1K | — | 1 |
| AS48602CZ | CONNECTPLUS Connect plus s.r.o. | 1K | 524.3K | 5 |
| AS59925CZ | GIGASERVER Seonet Multimedia s.r.o. | 1K | 65.5K | 2 |
| AS50415CZ | Ahosting Ahosting a.s. | 1K | 524.3K | 2 |
| AS57081CZ | SCARFBOT Scarfbot Technologies, s.r.o. | 1K | 524.3K | 2 |
| AS198103CZ | CCS-CZ CCS Ceska spolecnost pro platebni karty s.r.o. | 1K | — | 3 |
| AS8646CZ | cloudinfrastack cloudinfrastack, s.r.o. | 1K | — | 1 |
| AS57904CZ | ASVEVYNET Vevynet s.r.o. | 1K | — | 1 |
| AS208659CZ | innc INNC s.r.o. | 1K | 524.3K | 2 |
| AS205234CZ | bkom Brnenske komunikace a.s. | 1K | — | 4 |
| AS208466CZ | egdsro EG.D, s.r.o. | 1K | — | 1 |
| AS206177CZ | sitepark SitePark s.r.o. | 1K | 525.3K | 6 |
| AS202556CZ | ASKRIVONET Blond & Brown s.r.o. | 1K | — | 1 |
| AS200828CZ | THOSTING-AS TERMS a.s. | 1K | 524.3K | 2 |
| AS41779CZ | LAJSINET LajsiNET s.r.o. | 1K | 524.3K | 2 |
| AS209795CZ | SPC-net SPC-net s.r.o. | 1K | 524.3K | 3 |
| AS201116CZ | VybezekNET Vybezek.NET s.r.o. | 1K | 524.3K | 2 |
| AS203365CZ | OPTETNETWORK Optet network, s. r. o. | 1K | 524.3K | 2 |
| AS208060CZ | DRMAX-BDC Dr. Max BDC, s.r.o. | 1K | 524.3K | 4 |
| AS205863CZ | POKORNY Stepan Pokorny | 1K | — | 2 |
| AS51449CZ | KTUO-AS Kabelova televize Usti nad Orlici, spol. s r. o. | 1K | 65.5K | 5 |
| AS213152CZ | NBU Narodni bezpecnostni urad Czech Republic | 1K | 524.3K | 3 |
| AS205002CZ | AS_IWAO CUBESOL, s.r.o. | 1K | 524.3K | 2 |
| AS56344CZ | ASVIRIDIUM Viridium.cz s.r.o. | 1K | 1 | 5 |
| AS211731CZ | MPSV-AS-CZ Ministry of labour and social affairs | 1K | 1 | 3 |