Autonomous system
AS24971: MasterDC s.r.o.
Czechia · hosting / infrastructure
Network type
hosting / infrastructure
Estimated users
1,458
Registered orgs
239
Country
Czechia
hosting / VPS
Estimated users is a published estimate of how many people use this network, extrapolated from 1,055 observations over a 60 day window. Large operators often run several networks, so a low figure can mean their customers reach the internet through a sibling network.
What this tells you
- Classified as hosting infrastructure. The handful of users measured behind it are people browsing from servers, not subscribers.
- Of those, 1,458 are in Czechia, <0.1% of everyone online there.
- 239 distinct organisations hold registered assignments inside this space, so an address here often belongs to one of their customers.
Countries in this space
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| Czechia | 96% | 95% | |
| Dominica | 0.9% | <0.1% | |
| Everything else (1 more) | 3% | 5% |
Organisations holding assignments here
Registered organisations account for 95% of this network's IPv4 space and 95% of its IPv6 space.
| Organisation | IPv4 share | IPv6 share | |
|---|---|---|---|
| MasterDC s.r.o. | 72% | <0.1% | |
| vpsFree.cz, z.s. | 5% | <0.1% | |
| NETIO Solutions s.r.o. | 4% | 5% | |
| ServerNow s.r.o. | 4% | 5% | |
| Virtualmaster, s.r.o. | 3% | - | |
| Etnetera Core a.s. | 3% | 38% | |
| AdminIT, s. r. o. | 2% | 38% | |
| Milos Kalerta, Exmasters Hosting | 2% | - | |
| Bydzovsky s.r.o. | 2% | 5% | |
| ANAFRA a.s. | 0.4% | 5% | |
| Not covered by any of these | 5% | 5% |
One address can carry more than one of these, so the rows add up to more than the space they cover.
Anonymizer signals
Flagged space covers 100% of this network's IPv4 space and 100% of its IPv6 space.
| Category | IPv4 share | IPv6 share | |
|---|---|---|---|
| Datacenter | 100% | 100% | |
| VPN | 7% | - | |
| Open proxy | 0.4% | - |
One address can carry more than one of these, so the rows add up to more than the space they cover.