Registered organisation
SURF B.V.
Address space registered to SURF B.V., 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 ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.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
10,354,944
IPv6 /64s
34,359,869,443
Registered blocks
68
Countries
4
What this tells you
- Holds 10,354,944 IPv4 addresses and 34,359,869,443 IPv6 /64 networks across 68 registered blocks.
- Announced by 17 networks, the largest being AS1103 SURF B.V. at 59% of the IPv4 space.
- Its space resolves to 4 countries, mostly Netherlands (99% of the IPv4 space).
Networks announcing this space
| Network | IPv4 share | IPv6 share | |
|---|---|---|---|
| AS1103 SURF B.V. | 59% | 100% | |
| AS1101 SURF (Thunderlab) | 18% | <0.1% | |
| AS1124 Universiteit van Amsterdam | 1% | - | |
| AS1104 Nikhef - Dutch National Institute for Sub-atomic Physics | 0.7% | <0.1% | |
| AS25182 Nederlandse Publieke Omroep | 0.6% | - | |
| AS48037 SSC-ICT Haaglanden | 0.6% | - | |
| AS1128 Technische Universiteit Delft | 0.6% | - | |
| AS702 Verizon Business - EMEA | 0.6% | - | |
| Everything else, including space not announced (9 more) | 19% | - |
Countries this space resolves to
| Country | IPv4 share | IPv6 share | |
|---|---|---|---|
| Netherlands | 99% | 100% | |
| Everything else, including space we cannot place (3 more) | <0.1% | - |
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.