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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 |
| 524.3K |
| 6 |
| AS49573CZ | ASJIMMY JimmyNet s.r.o. | 1K | 524.3K | 2 |
| AS202774CZ | comtex ISP Alliance a.s. | 1K | 524.3K | 2 |
| AS215588CZ | notino-asn Notino s.r.o. | 1K | 2 | 4 |
| AS198346CZ | NETFORMS-AS NETFORMS s.r.o. | 1K | 196.6K | 7 |
| AS56344CZ | ASVIRIDIUM Viridium.cz s.r.o. | 1K | 1 | 5 |
| AS199490CZ | INTERCONNECT INTERCONNECT s.r.o. | 1K | 65.5K | 2 |
| AS202874CZ | ZL-AS-CZ Zlinsky Kraj | 1K | 524.3K | 2 |
| AS208805CZ | SpolNet INTERCONNECT s.r.o. | 1K | — | 1 |
| AS50067CZ | cesal CESAL s.r.o. | 1K | 524.3K | 5 |
| AS201533CZ | UNITED_NETWORKS_SE United Networks SE | 1K | — | 1 |
| AS205345CZ | HORALNET HoralNET s.r.o. | 1K | 524.3K | 2 |
| AS204943CZ | NTVcable NTV cable s.r.o. | 1K | 524.3K | 2 |
| AS199722CZ | SBERBANKCZ Sberbank CZ, a.s. v likvidaci | 1K | — | 1 |
| AS34819CZ | h17 H17 Networks, s.r.o. | 1K | 524.3K | 2 |
| AS12344CZ | CZECHITC CZECH IT CLUSTER, druzstvo | 1K | 131.1K | 2 |
| AS205234CZ | bkom Brnenske komunikace a.s. | 1K | — | 4 |
| AS202979CZ | ngaservices NGA Services, spol. s r.o. | 1K | 524.3K | 2 |
| AS25238CZ | MONETA-CZ MONETA Money Bank, a.s. | 1K | 1 | 5 |
| AS209834CZ | brnonet KAZA.cz s.r.o. | 1K | — | 1 |
| AS47727CZ | WARNETCZ-AS Warnet.cz s.r.o. | 1K | 65.5K | 2 |
| AS61425CZ | MLADAFRONTA AdminIT, s. r. o. | 1K | — | 1 |
| AS212876CZ | CZ-PARDUBICKYKRAJ Pardubicky Kraj | 1K | 524.3K | 2 |
| AS206784CZ | Josefov Internet Praha Josefov s.r.o. | 1K | 524.3K | 2 |
| AS206951CZ | BMBGreen BMB-Green s.r.o. | 1K | 524.3K | 2 |
| AS205863CZ | POKORNY Stepan Pokorny | 1K | — | 2 |
| AS197895CZ | ONYX-AS ONYX engineering, spol. s r.o. | 1K | 65.5K | 2 |
| AS39455CZ | Tlapnet-SK-AS Jiri Tlapak | 1K | — | 1 |
| AS208466CZ | egdsro EG.D, s.r.o. | 1K | — | 1 |
| AS198143CZ | CESKAPOSTA-AS Ceska Posta s.p. | 1K | 1 | 4 |
| AS41779CZ | LAJSINET LajsiNET s.r.o. | 1K | 524.3K | 2 |
| AS49095CZ | P12com PRAHA12.com s.r.o. | 1K | 524.3K | 3 |
| AS207886CZ | ECOMPEU-CZ ECOMP spol s r.o. | 1K | 524.3K | 6 |
| AS58220CZ | PEGASNET Tomas Budai | 1K | 65.5K | 2 |
| AS57904CZ | ASVEVYNET Vevynet s.r.o. | 1K | — | 1 |
| AS198103CZ | CCS-CZ CCS Ceska spolecnost pro platebni karty s.r.o. | 1K | — | 3 |
| AS59664CZ | ASOPTON Opton s.r.o. | 1K | — | 1 |
| AS44770CZ | SAVVY-AS Savvy s.r.o. | 1K | 1 | 2 |
| AS59871CZ | HEUREKA_GROUP Heureka Group a.s. | 1K | 5 | 6 |
| AS51449CZ | KTUO-AS Kabelova televize Usti nad Orlici, spol. s r. o. | 1K | 65.5K | 5 |
| AS209795CZ | SPC-net SPC-net s.r.o. | 1K | 524.3K | 3 |
| AS204772CZ | RSD-CZ Reditelstvi silnic a dalnic s.p. | 1K | 65.5K | 2 |
| AS202551CZ | INERA INERA.CZ s.r.o. | 1K | 524.3K | 2 |
| AS205044CZ | MOSES MOSES Internet s.r.o. | 1K | 524.3K | 2 |
| AS196916CZ | BUSINESSCOM-AS BusinessCom CZ spol. s r.o. | 1K | — | 2 |
| AS62405CZ | Brouzdal Brouzdal, s.r.o. | 1K | 65.5K | 2 |
| AS50338CZ | GAMERHOST GamerHost s.r.o. | 1K | 65.5K | 4 |