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IP addresses in Czechia

Czechia (CZ) holds 1,577 aggregated IPv4 ranges in the RIR delegation data. We sampled 24 addresses from 600 of them to estimate how much of the space is hosting, CDN or Tor infrastructure.

At a glance

1,577
aggregated ranges
4%
hosting in sample
3
CDN in sample
0
Tor exits in sample

Sample of 24 addresses, one per range. This is an estimate of the space, not a list of “good” IPs.

Networks seen in Czechia

ASNNetworkTypeSample hits
AS42908ORIGINAL AS CZ-NORDICTELECOMREGIONALisp2
AS5610O2-CZECH-REPUBLICisp2
AS209155ONEHOSTPLANET Gigaisp1
AS13036TMOBILE-mobile1
AS208847ASFRYZLisp1

Type comes from the announcing ASN and public registry data. A consumer ISP can still sell a resold range.

Before you use a CZ address

Check a batch · ASN reference · What residential means · 7-day warm-up plan

Data: RIR delegation ranges (ipverse/rir-ip) · type classification from announcing ASN + PeeringDB. Last sampling run: 2026-10-31.