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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 |
| — |
| — |
| 0 |
| AS201348CZ | sizeknet SIZEK Networks s.r.o | — | — | 0 |
| AS35361CZ | GREPNET GREPA Networks s.r.o. | — | — | 0 |
| AS15512CZ | VODAFONE-CZ-AS-3 Vodafone Czech Republic a.s. | — | — | 0 |
| AS201007CZ | CZ-TESCO Tesco Stores CR a.s. | — | — | 0 |
| AS47627CZ | NIXSK-RS NIX.CZ z.s.p.o. | — | — | 0 |
| AS41509CZ | EQUIT-AS Patria Finance, a.s. | — | — | 0 |
| AS49931CZ | SITKOM-AS STARNET, s.r.o. | — | — | 0 |
| AS61981CZ | MACH3NET KLFREE NETWORKS, s.r.o. | — | — | 0 |
| AS203342CZ | RudolfNet ISP Alliance a.s. | — | — | 0 |
| AS61973CZ | OLEKSANDRA-AS Netassist International s.r.o. | — | — | 0 |