Registered organisation
CETIN a.s.
Address space registered to CETIN a.s., and where it is announced from.
Registered holders come from the bulk whois that RIPE, APNIC and AFRINIC publish. ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.
IPv4 addresses
152,832
IPv6 /64s
38,654,705,666
Registered blocks
10
Countries
1
What this tells you
- Holds 152,832 IPv4 addresses and 38,654,705,666 IPv6 /64 networks across 10 registered blocks.
- One network announces this space, AS28725 CETIN a.s., covering 97% of the IPv4 space.
- All of the space we can place resolves to Czechia.
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS28725 CETIN a.s. | 97% | 100% | |
| Not announced to the internet | 3% | - |
Countries this space resolves to
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| Czechia | 100% | 100% |
Holding a block is a registry fact, not a physical one. The organisation named here is who the block is assigned to, which is often a customer of the network operator announcing it.