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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 |
| 2K |
| — |
| 8 |
| AS51800CZ | FIBERNET-ASN FIBER Network s.r.o. | 2K | 65.5K | 2 |
| AS204165CZ | CZNETSRO-AS Cznet s.r.o. | 2K | 589.8K | 4 |
| AS47949CZ | GSNETCZ gsnet.cz s.r.o. | 2K | — | 1 |
| AS206420CZ | KabelServis KABEL servis Praha spol. s r.o. | 2K | 589.8K | 4 |
| AS59984CZ | KLFREE-NETWORKS KLFREE NETWORKS, s.r.o. | 2K | 65.5K | 3 |
| AS196815CZ | LANSERVIS-AS LAN servis s.r.o. | 2K | — | 1 |
| AS201548CZ | Milan_Zelenka Milan Zelenka | 2K | — | 2 |
| AS34049CZ | WOSACZ-AS H-data, spol. s r.o. | 2K | 524.3K | 5 |
| AS197083CZ | K2ATMITEC K2 atmitec s.r.o. | 2K | — | 1 |
| AS210631CZ | SafeDX SafeDX s.r.o. | 2K | 131.1K | 6 |
| AS208648CZ | pghub Playground HUB s.r.o. | 2K | — | 2 |
| AS216450CZ | prgaero Letiste Praha, a. s. | 2K | — | 5 |
| AS205619CZ | ASVESNET Jiri Chalabala | 2K | 524.3K | 6 |
| AS62102CZ | ISE-AS Prazska plynarenska, a.s. | 2K | 65.5K | 4 |
| AS197565CZ | ASDIGISERVICE NHK Solutions s.r.o. | 2K | — | 1 |
| AS51400CZ | ASSPOJENET SPOJE.NET s.r.o. | 2K | 1 | 2 |
| AS206438CZ | MXNET-AS MX-NET Telekomunikace s.r.o. | 2K | 589.8K | 22 |
| AS211774CZ | IGN ign.cz internet, s.r.o. | 2K | 524.3K | 3 |
| AS209671CZ | QRATOR-SW Qrator Labs CZ s.r.o. | 1.8K | 65.5K | 5 |
| AS51134CZ | INTACTO-AS Development 777 s.r.o. | 1.8K | 524.3K | 6 |
| AS41030CZ | ASNOVOTNYCZ Jaroslav Novotny | 1.8K | — | 7 |
| AS209055CZ | AS_WAG W.A.G. PAYMENT SOLUTIONS, A.S. | 1.8K | 65.5K | 5 |
| AS211248CZ | cz_artemis4 Artemis NET s.r.o. | 1.8K | 524.3K | 4 |
| AS203385CZ | asczpernix Pernix systems s.r.o. | 1.5K | 131.1K | 10 |
| AS196653CZ | ASBESTNETCZ BEST-NET s.r.o. | 1.5K | 1 | 3 |
| AS199803CZ | ComSource ComSource s.r.o. | 1.5K | 65.5K | 3 |
| AS205535CZ | WINDYGHOUL Windyghoul s.r.o. | 1.5K | 1M | 6 |
| AS197694CZ | MEPNET-AS Municipal Office of the City Prague | 1.5K | — | 2 |
| AS197256CZ | RENEWINKLER-AS Rene Winkler | 1.5K | — | 6 |
| AS52176CZ | TTC-CZ TTC TELEKOMUNIKACE s.r.o. | 1.5K | 65.5K | 3 |
| AS209795CZ | SPC-net SPC-net s.r.o. | 1.3K | 524.3K | 4 |
| AS198725CZ | ULTIMUM-AS Ultimum Technologies a.s. | 1.3K | 524.3K | 3 |
| AS206703CZ | BOXNET Netcom Solutions s.r.o. | 1.3K | — | 2 |
| AS51586CZ | SERVERZONECZ ServerZone s.r.o. | 1.3K | 131.1K | 4 |
| AS200844CZ | SA-AS STUDENT AGENCY k.s. | 1.3K | 524.3K | 3 |
| AS48960CZ | MORAVANET AQUA,a.s. | 1.3K | 65.5K | 6 |
| AS50980CZ | net3 cloudinfrastack, s.r.o. | 1.3K | — | 2 |
| AS206587CZ | daktela-cz Daktela s.r.o. | 1.3K | — | 5 |
| AS197444CZ | COMFEEL COMFEEL s.r.o. | 1.3K | 524.3K | 5 |
| AS49013CZ | Fusion_Media Fusion Media, s.r.o. | 1.3K | — | 2 |
| AS48091CZ | ROWANet-AS Kraj Vysocina | 1.3K | 65.5K | 5 |
| AS198284CZ | ASBYSTRICE Mesto Velka Bystrice | 1.3K | 1 | 3 |
| AS40964CZ | ASTELNET ASTELNET s.r.o. | 1.3K | — | 4 |
| AS20708CZ | SKODA-AUTO SKODA AUTO a.s. | 1.3K | 1 | 4 |
| AS197920CZ | SKODA-ICT SKODA ICT s.r.o. | 1.3K | — | 2 |
| AS212138CZ | AS_TSB Technicke site Brno, akciova spolecnost | 1.3K | — | 2 |