Registered organisation
ISP Alliance a.s.
Address space registered to ISP Alliance 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
46,848
IPv6 /64s
622,770,257,939
Registered blocks
53
Countries
1
What this tells you
- Holds 46,848 IPv4 addresses and 622,770,257,939 IPv6 /64 networks across 53 registered blocks.
- Announced by 7 networks, the largest being AS47232 ISP Alliance a.s. at 70% of the IPv4 space.
- All of the space we can place resolves to Czechia.
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS47232 ISP Alliance a.s. | 70% | 31% | |
| AS204666 Jiri Tlapak | 23% | 28% | |
| AS207886 ECOMP spol s r.o. | 2% | 6% | |
| AS50338 GamerHost s.r.o. | 1% | 0.7% | |
| AS15935 ha-vel internet s.r.o. | 0.5% | - | |
| AS198814 ALPHA StylSoft, s.r.o. | - | 0.7% | |
| AS204405 Durnet.cz sro | - | 0.7% | |
| Not announced to the internet | 3% | 33% |
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.