Registered organisation
International Institute for Applied Systems Analysis
Address space registered to International Institute for Applied Systems Analysis, 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
65,536
IPv6 /64s
131,074
Registered blocks
4
Countries
10
What this tells you
- Holds 65,536 IPv4 addresses and 131,074 IPv6 /64 networks across 4 registered blocks.
- Announced by 14 networks, the largest being AS2488 International Institute for Applied Systems Analysis at 50% of the IPv4 space.
- Its space resolves to 10 countries, mostly Austria (82% of the IPv4 space).
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS2488 International Institute for Applied Systems Analysis | 50% | 50% | |
| AS5650 Verizon (fka. Frontier) | 9% | - | |
| AS39855 Mod Mission Critical LLC | 2% | - | |
| AS47377 Orange Belgium SA | 2% | - | |
| AS396356 Latitude.sh | 0.8% | - | |
| AS214432 Zhilian Technology CO., LTD. | 0.8% | - | |
| AS211440 Karolio IT paslaugos, UAB | 0.8% | - | |
| AS4637 Telstra International Limited | 0.8% | - | |
| AS1853 ACONET | - | 50% | |
| Everything else, including space not announced (5 more) | 34% | - |
Countries this space resolves to
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| Austria | 82% | 100% | |
| United States | 11% | - | |
| Germany | 2% | - | |
| Belgium | 2% | - | |
| Hong Kong | 2% | - | |
| South Korea | 0.8% | - | |
| Finland | 0.4% | - | |
| Japan | 0.4% | - | |
| Everything else, including space we cannot place (2 more) | 0.8% | - |
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.