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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 |
| 2.3K |
| 1 |
| 5 |
| AS43757CZ | ICZAS-CZ ICZ a.s. | 2.3K | 1 | 3 |
| AS204080CZ | MEG-AS Apelby Solutions s.r.o. | 2.3K | — | 5 |
| AS207945CZ | CNI CNI Group s.r.o. | 2.3K | 524.3K | 4 |
| AS48451CZ | PRE-AS Prazska energetika, a.s. | 2K | 65.5K | 2 |
| AS51400CZ | ASSPOJENET SPOJE.NET s.r.o. | 2K | 1 | 2 |
| AS57288CZ | ASSTAMPI StaMPi, spol. s r.o. | 2K | 1 | 2 |
| AS60529CZ | PRASLAVICENET Miroslav Klement | 2K | — | 1 |
| AS208906CZ | SYNOT-CZ SYNOT ICT Services, a.s. | 2K | 524.3K | 2 |
| AS197393CZ | ASRUDOLFNET ISP Alliance a.s. | 2K | 524.3K | 3 |
| AS38952CZ | MAFRA-CZ-AS MAFRA, a.s. | 2K | — | 2 |
| AS34049CZ | WOSACZ-AS H-data, spol. s r.o. | 2K | 524.3K | 5 |
| AS204332CZ | TKCSystem TKC system s.r.o. | 2K | 524.3K | 4 |
| AS216450CZ | prgaero Letiste Praha, a. s. | 2K | — | 5 |
| AS51524CZ | ASNETDELUXE Ales Tesacek | 2K | — | 1 |
| AS197083CZ | K2ATMITEC K2 atmitec s.r.o. | 2K | — | 1 |
| AS50163CZ | altnet-skvelynet Altnet s.r.o. | 2K | 65.5K | 2 |
| AS201727CZ | AS_BUBAKOV Blond & Brown s.r.o. | 2K | 256 | 3 |
| AS50348CZ | KVADOS KVADOS, a.s. | 2K | 65.5K | 2 |
| AS196684CZ | VITALATIV-CZ-AS VITALATIV, s.r.o. | 2K | — | 1 |
| AS197542CZ | COMUNITED Jan Saulich | 2K | — | 1 |
| AS39736CZ | ICTSUPPORT ICT Support, s.r.o. | 2K | 524.3K | 4 |
| AS200114CZ | PROCOM PODA a.s. | 2K | — | 3 |
| AS58239CZ | ASHANSPAULCITY hanspaul-city.net s.r.o. | 2K | 262.1K | 5 |
| AS62011CZ | ASUNHFREE UNHfree.net z.s. | 2K | — | 2 |
| AS51210CZ | KRAXNET-AS KRAXNET s.r.o. | 2K | 1 | 2 |
| AS201548CZ | Milan_Zelenka Milan Zelenka | 2K | — | 2 |
| AS198282CZ | cablenet CAH Building s.r.o. | 2K | 65.5K | 2 |
| AS51800CZ | FIBERNET-ASN FIBER Network s.r.o. | 2K | 65.5K | 2 |
| AS205619CZ | ASVESNET Jiri Chalabala | 2K | 524.3K | 6 |
| AS208093CZ | msk Moravskoslezsky kraj | 2K | — | 5 |
| AS59984CZ | KLFREE-NETWORKS KLFREE NETWORKS, s.r.o. | 2K | 65.5K | 3 |
| AS212975CZ | TEAMCITY-AS TeamCity s.r.o. | 2K | 65.5K | 4 |
| AS204165CZ | CZNETSRO-AS Cznet s.r.o. | 2K | 589.8K | 4 |
| AS44500CZ | vlasimnet Vlasimnet s.r.o. | 2K | 65.5K | 3 |
| AS197565CZ | ASDIGISERVICE NHK Solutions s.r.o. | 2K | — | 1 |
| AS50784CZ | intraweb Intraweb servis s.r.o. | 2K | 524.3K | 6 |
| AS63113CZ | GLOBECORP-NETWORKS - Globecorp Networks | 2K | — | 8 |
| AS56427CZ | ASHRADIL Michal Hradil | 2K | — | 1 |
| AS31461CZ | MORAVIA-IT-AS Moravia IT s.r.o. | 2K | — | 1 |
| AS206429CZ | Corsat CORSAT s.r.o | 2K | 524.3K | 3 |
| AS206414CZ | techcenter_cz TechCenter s.r.o. | 2K | — | 4 |
| AS206420CZ | KabelServis KABEL servis Praha spol. s r.o. | 2K | 589.8K | 4 |
| AS206438CZ | MXNET-AS MX-NET Telekomunikace s.r.o. | 2K | 589.8K | 22 |
| AS196815CZ | LANSERVIS-AS LAN servis s.r.o. | 2K | — | 1 |
| AS20609CZ | kazaczsro KAZA.cz s.r.o. | 2K | 65.5K | 3 |
| AS50975CZ | AVX_AS KYOCERA AVX Components s.r.o. | 2K | — | 1 |