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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.
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. | 265.5K | 11 |
| AS30764CZ | PODA-AS PODA a.s. | 220.4K | 21 |
| AS42908CZ | CZ-NORDICTELECOMREGIONAL O2 Czech Republic, a.s. | 183.3K | 44 |
| 256 |
| — |
| 1 |
| AS50097CZ | IPVOIP-AS IPVOIP s.r.o. | 256 | — | 1 |
| AS214886CZ | ASGREENHOSTING Green hosting s.r.o. | 256 | — | 1 |
| AS197875CZ | UNIPETROLRPA ORLEN Unipetrol RPA s.r.o. | 256 | — | 1 |
| AS56891CZ | ASCZRB Narodni rozvojova banka, a.s. | 256 | — | 1 |
| AS215676CZ | GOODHOST GoodHost s.r.o. | 256 | 1 | 2 |
| AS216006CZ | BLAZEHOST Vojtech Smrz | 256 | 16 | 2 |
| AS205026CZ | WVG-CLOUD-AS wvg solution s.r.o. | 256 | — | 1 |
| AS196849CZ | ASBARTYSOVA MO BYRTUS s.r.o. | 256 | — | 1 |
| AS28892CZ | CUZK-NET Cesky urad zememericky a katastralni | 256 | 1 | 2 |
| AS211137CZ | ISPSERVICES ISP Services spol. s.r.o., | 256 | — | 1 |
| AS202996CZ | Helkor Ondrej Vrana | 256 | 256 | 2 |
| AS211334CZ | Master_IT_Technologies-2 MASTER IT Technologies, a.s. | 256 | — | 1 |
| AS34487CZ | southpraguenet SouthPrague.Net, z.s. | 256 | 524.3K | 2 |
| AS210367CZ | KZCR Krajska zdravotni, a.s. | 256 | 1 | 2 |
| AS199059CZ | MauriceWard Maurice Ward & Co., s.r.o. | 256 | — | 1 |
| AS208790CZ | Stepan-Duda Stepan Duda | — | 16 | 1 |
| AS204405CZ | DurnetCZ Durnet.cz sro | — | 65.5K | 1 |
| AS202733CZ | OKCOMP OK COMP s.r.o. | — | 1 | 1 |
| AS209431CZ | Pharocom PharoCom s.r.o. | — | 524.3K | 1 |
| AS207272CZ | Vojtech-Linhart-Department-of-Telecom Vojtech Linhart | — | 2 | 2 |
| AS59747CZ | NIX-DR NIX.CZ z.s.p.o. | — | 1 | 1 |
| AS215582CZ | ipv6project-eu Jan Kalista | — | 1 | 1 |
| AS54444CZ | AS54444 AS54444 s.r.o. | — | 1 | 1 |
| AS210951CZ | MIEGLNET Josef Miegl | — | 11 | 11 |
| AS60275CZ | AS_RVTECH RVTech s.r.o. | — | 1 | 1 |
| AS210984CZ | ZEROPS-IO Zerops s.r.o. | — | 4.1K | 1 |
| AS12608CZ | DATALABS-TRANSPORT-AS IGLG Network CZ s.r.o. | — | — | 0 |
| AS47627CZ | NIXSK-RS NIX.CZ z.s.p.o. | — | — | 0 |
| AS214952CZ | MJANIK-AS mjanik.net s.r.o. | — | 65.5K | 1 |
| AS215777CZ | CINCURA Jiri Cincura | — | 1 | 1 |
| AS207583CZ | technologicke-centrum-as Technologicke centrum a.s. | — | 1 | 1 |
| AS216339CZ | Mald-Entertainment-Studio Mald Entertainment Studio, s.r.o. | — | 258 | 3 |
| AS207576CZ | kovoplazma-as KOVO - PLAZMA s.r.o. | — | 1 | 1 |
| AS200985CZ | BOKNET TNtech, s.r.o. | — | 65.5K | 1 |
| AS210401CZ | Batlify_Internet Batlify Internet s.r.o. | — | 1 | 1 |
| AS215846CZ | Blindspot-research PRO-ZETA a.s. | — | 65.5K | 1 |
| AS208816CZ | AS208816 It services company s.r.o. | — | 65.5K | 1 |
| AS204150CZ | StormHost David Zakoucky | — | 18 | 18 |
| AS210436CZ | ASITGLOBE IT Globe s.r.o. | — | 1 | 1 |
| AS213813CZ | MASON-CZ-AS MaSON z. s. | — | 1 | 1 |
| AS8882CZ | AS8882 AS8882 s.r.o. | — | 1 | 1 |
| AS206321CZ | startech STARTECH spol. s r.o. | — | 1 | 1 |
| AS216021CZ | STEVIJO-AS Stefan Johannes Mayer | — | 1 | 1 |
| AS46553CZ | AS46553 AS46553 s.r.o. | — | 1 | 1 |
| AS207575CZ | brabeczc-as Zahradnicke centrum Brabec, s.r.o. | — | 1 | 1 |
| AS58215CZ | Omniline-net-as Omniline Investment s.r.o. | — | — | 0 |