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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.
717 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. | 266.5K | 12 |
| AS30764CZ | PODA-AS PODA a.s. | 220.4K | 21 |
| AS42908CZ | CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. | 183.3K | 44 |
| 512 |
| — |
| 2 |
| AS202131CZ | Wave-net ISP Alliance a.s. | 512 | — | 1 |
| AS206234CZ | RO-FORTUNA-GAME FORTUNA GAME a.s. | 512 | — | 2 |
| AS48131CZ | IXOXI IXOXI s.r.o. | 512 | 131.1K | 4 |
| AS42726CZ | BUSINESSCOM BusinessCom CZ spol. s r.o. | 512 | — | 2 |
| AS20701CZ | CZNIC-AS3 CZ.NIC, z.s.p.o. | 512 | 2 | 4 |
| AS218484CZ | OLEKSANDR-AS Oleksandr Karpovych | 512 | 1 | 3 |
| AS60266CZ | EMBEDIT-AS EmbedIT s.r.o. | 512 | 65.5K | 3 |
| AS3161CZ | ASITPROFI IT PROFI s.r.o. | 512 | — | 1 |
| AS207696CZ | DPP-AS Dopravni podnik hl.m. Prahy, a.s. | 512 | 1 | 2 |
| AS204668CZ | ASTANACZ ASTANA Technologies s.r.o. | 512 | 131.1K | 2 |
| AS51727CZ | SKODAPOWER-AS Doosan Skoda Power s.r.o | 512 | — | 1 |
| AS25321CZ | G4S-NET Brink's Cash Solutions (CZ), a.s. | 512 | — | 1 |
| AS203208CZ | CTU_AS4_2 Czech Telecommunication Office | 768 | 458.8K | 5 |
| AS201265CZ | ANAFRA-AS ANAFRA a.s. | 768 | 65.5K | 3 |
| AS43866CZ | ALTRON Altron a.s. | 768 | — | 2 |
| AS199711CZ | NCISA-AS National Cyber and Information Security Agency | 768 | 65.5K | 4 |
| AS200806CZ | bee BOHEMIA ENERGY entity s.r.o. | 768 | — | 2 |
| AS206613CZ | TIPSPORT-NET-AS Tipsport.net a.s. | 768 | 1 | 4 |
| AS206712CZ | FeldHost-AS FELDSAM s.r.o. | 768 | 196.6K | 6 |
| AS30738CZ | NETART-AS NetArt Group s.r.o. | 768 | 65.5K | 5 |
| AS204907CZ | AS204907 Air Bank a.s. | 768 | — | 3 |
| AS200871CZ | rockawayx-eu RockawayX Infra s.r.o. | 768 | — | 3 |
| AS215353CZ | AtropolHosting Josef Hrabe | 768 | — | 3 |
| AS212315CZ | FTCZ-NET Frantisek Toman | 768 | 524.3K | 4 |
| AS204007CZ | Kleissner Kleissner Investments s.r.o. | 768 | 524.3K | 4 |
| AS202948CZ | PL-FORTUNA-GAME-DC FORTUNA GAME a.s. | 768 | — | 3 |
| AS208950CZ | ASEZPADASRO Ezpada s.r.o | 768 | — | 3 |
| AS207095CZ | SK-FORTUNA-GAME FORTUNA GAME a.s. | 768 | — | 3 |
| AS34596CZ | HVfree HVfree.net servis. s.r.o. | 768 | 524.3K | 4 |
| AS214032CZ | KUBE1-CLOUD-AS BUDOVIT s.r.o | 768 | 1 | 3 |
| AS205910CZ | ASNEW McKinsey & Company Inc. | 768 | — | 3 |
| AS57472CZ | JRNET JR-NET, s.r.o. | 768 | 65.5K | 3 |
| AS199220CZ | KRS-AS-CZ KrU Stredoceskeho kraje | 768 | 1 | 3 |
| AS62159CZ | ASHAPPY Happy Technik s.r.o. | 768 | — | 3 |
| AS219440CZ | FUNFIRST FunFirst s.r.o. | 768 | 2 | 4 |
| AS197412CZ | ASBESKYDNET Jiri Tlapak | 768 | — | 3 |
| AS201931CZ | LBNET LBnet.cz s.r.o. | 768 | 65.5K | 3 |
| AS21082CZ | AS-CZVP Reliable Communications s.r.o. | 768 | — | 3 |
| AS204943CZ | NTVcable NTV cable s.r.o. | 1K | 524.3K | 2 |
| AS201447CZ | AS_CNB The Czech National Bank | 1K | — | 4 |
| AS204567CZ | ASPCKBnet PCKBnet s.r.o. | 1K | — | 1 |
| AS51449CZ | KTUO-AS Kabelova televize Usti nad Orlici, spol. s r. o. | 1K | 65.5K | 5 |
| AS51382CZ | COMANET-NETWORK Ing. Leos Janouch | 1K | 1 | 2 |
| AS201625CZ | UNITED_NETWORKS_SE United Networks SE | 1K | 524.3K | 2 |
| AS208847CZ | ASfryzl Martin Fryzl | 1K | 524.3K | 2 |
| AS202551CZ | INERA INERA.CZ s.r.o. | 1K | 524.3K | 2 |