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How Czechia ranks worldwide on dormant space, the transfer market, routing security and address density.
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. | 265.2K | 10 |
| AS30764CZ | PODA-AS PODA a.s. | 220.4K | 21 |
| AS42908CZ | CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. | 183.3K | 44 |
| 3.8K |
| 524.3K |
| 7 |
| AS62099CZ | JMNET JM-Networks, s.r.o. | 4.1K | 524.3K | 5 |
| AS203165CZ | SPCSS Statni pokladna Centrum sdilenych sluzeb, s.p. | 4.1K | 73.7K | 6 |
| AS57287CZ | OTAVANET-AS OtavaNet s.r.o. | 4.1K | 1 | 2 |
| AS210958CZ | FASTPORT Fastport a.s. | 4.1K | 65.5K | 3 |
| AS21045CZ | QnetCZ K-net Technical International Group, s.r.o. | 4.1K | — | 1 |
| AS197277CZ | SUKL_AS State Institute for Drug Control | 4.1K | 65.5K | 4 |
| AS198500CZ | MUNINET-AS Masarykova univerzita - Ustav vypocetni techniky | 4.1K | 65.5K | 2 |
| AS52029CZ | ASNOVOSEDLY Palanet s.r.o. | 4.1K | — | 9 |
| AS197550CZ | ASINET4YOU Internet4you.cz, spol. s r.o. | 4.1K | — | 1 |
| AS213223CZ | gasnet GasNet, s.r.o. | 4.1K | — | 3 |
| AS44070CZ | MCnet-AS O2 Czech Republic, a.s. | 4.1K | 524.3K | 3 |
| AS59959CZ | SFERIA SferiaNET.cz s.r.o. | 4.1K | 524.3K | 5 |
| AS213057CZ | innogycz innogy Ceska republika a.s | 4.1K | — | 3 |
| AS204860CZ | NETX NetX Networks a.s. | 4.1K | 3.8M | 16 |
| AS198101CZ | KOOPERATIVA-AS Kooperativa pojistovna, a.s., Vienna Insurance Group | 4.1K | 1M | 14 |
| AS49890CZ | ADA-NET-AS ABLE agency, s.r.o. | 4.1K | 524.3K | 2 |
| AS47868CZ | SUPRO-AS AVONET, s.r.o. | 4.1K | 65.5K | 3 |
| AS57496CZ | PRAHA1NET-AS Praha1.net z.s.p.o. | 4.1K | 65.5K | 3 |
| AS56360CZ | MSTR-AS TRINITY CZECH REPUBLIC, s.r.o. | 4.1K | 524.3K | 2 |
| AS197846CZ | SAOCOMP-AS Radovan Ochvat trading as SAO Computers | 4.1K | — | 2 |
| AS39904CZ | MERIT-AS MERIT GROUP a.s | 4.1K | 65.5K | 4 |
| AS56456CZ | C2NET C2NET s.r.o. | 4.1K | 524.3K | 2 |
| AS198991CZ | TV_NOVA_SRO TV Nova sro | 4.1K | — | 1 |
| AS209155CZ | onehostplanet Onehostplanet s.r.o. | 4.4K | 1 | 15 |
| AS197029CZ | LAM-AS LAM plus s.r.o. | 4.4K | 131.1K | 3 |
| AS52115CZ | JARONET-AS JaroNet-services s.r.o. | 4.4K | 1M | 4 |
| AS204064CZ | CEZNET-AS CEZNET s.r.o. | 4.4K | 524.3K | 6 |
| AS39817CZ | OVANET OvaNet, a.s. | 4.4K | 65.5K | 3 |
| AS51968CZ | NEOS-AS NEOS v.o.s. | 4.4K | — | 2 |
| AS57294CZ | Internet_Expert_CZ Internet Expert s.r.o. | 4.4K | 1 | 3 |
| AS56450CZ | ALBERON_AS Alberon Letohrad s.r.o | 4.6K | 524.3K | 3 |
| AS44424CZ | AS44424 Allegro Retail a.s. | 4.6K | — | 4 |
| AS52092CZ | ALFSERVIS-AS Alf servis, s.r.o. | 4.6K | 1 | 3 |
| AS2118CZ | RELCOM-AS Reliable Communications s.r.o. | 4.6K | — | 18 |
| AS47110CZ | CLOUD4COM-AS Cloud4com s.r.o. | 4.6K | 65.5K | 6 |
| AS209810CZ | NETCORESERVICES Netcore services s.r.o. | 4.9K | 524.3K | 7 |
| AS48417CZ | ITS-CZ ITS akciova spolecnost | 4.9K | 65.5K | 10 |
| AS48298CZ | GOVCZ MINISTERSTVO VNITRA CR | 4.9K | 65.5K | 10 |
| AS197206CZ | EU1-BUSINESSCOM BusinessCom CZ spol. s r.o. | 4.9K | 65.5K | 9 |
| AS202618CZ | rychlydrat Rychly drat, s.r.o. | 5.1K | 524.3K | 3 |
| AS41670CZ | HKFREE-AS hkfree.org z.s. | 5.1K | 524.3K | 3 |
| AS49767CZ | INTERNETPB-AS O2 Czech Republic, a.s. | 5.1K | 65.5K | 3 |
| AS207242CZ | NOEL NOEL, s.r.o. | 5.1K | 786.4K | 10 |
| AS196843CZ | KHNET KHnet.info, z.s. | 5.1K | 65.5K | 3 |
| AS41453CZ | TRESTEL-CZ-ASN SITEL spol. s r.o. | 5.1K | 589.8K | 4 |
| AS48661CZ | AIRWAYNET AIRWAYNET, a.s. | 5.1K | 65.5K | 3 |