Registered organisation
Universiteit Twente
Address space registered to Universiteit Twente, 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
66,816
IPv6 /64s
131,074
Registered blocks
6
Countries
1
What this tells you
- Holds 66,816 IPv4 addresses and 131,074 IPv6 /64 networks across 6 registered blocks.
- Announced by 2 networks, the largest being AS1133 University of Twente at 98% of the IPv4 space.
- All of the space we can place resolves to Netherlands.
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS1133 University of Twente | 98% | 50% | |
| AS1149 SURF B.V. | 2% | - | |
| Not announced to the internet | - | 50% |
Countries this space resolves to
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| Netherlands | 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.