Diederik Focko de Zee
Data as of 2026-10-25
BGP inherited
This organisation
| Netblocks | 9 · 1,024 IPv4 addresses |
| IPv6 | 5 prefixes (largest 2a10:9903:200::/40) |
| Registered in | United States (3) · Austria (2) · Netherlands (1) |
| Record ID | 256064333 |
| Registry | BGP |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 22 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (9)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 45.152.39.0/24 | Diederik Focko de Zee | BGP | ANNOUNCED | ● high |
| 89.37.98.0/24 | Diederik Focko de Zee | BGP | ANNOUNCED | ● high |
| 103.141.12.0/24 | Diederik Focko de Zee | BGP | ANNOUNCED | ● high |
| 143.20.114.0/24 | Diederik Focko de Zee | RIPE | LEGACY | ● high |
| 2001:678:7ec::/48 | Diederik Focko de Zee | BGP | ANNOUNCED | ● high |
| 2a10:9903:201::/48 | Diederik Focko de Zee | BGP | ANNOUNCED | ● high |
| 2a14:1ec7:f400::/40 | Diederik Focko de Zee | BGP | ANNOUNCED | ● high |
| 2a0c:9a40:8520::/48 | Diederik Focko de Zee | RIPE | ASSIGNED | ● low |
| 2a10:9903:200::/40 | Diederik Focko de Zee | RIPE | ALLOCATED-BY-LIR | ● low |
IPv6 ranges (5)
Footprint over time
18 weekly snapshots · JSON
13
+1 netblocks since 2026-07-05
2026-07-05
peak 13
2026-10-25
Network trust
what's this?
RPKI hygiene: C
how networks compare →
69.2%
of checked blocks have valid RPKI ROA coverage
(9 of 13)
No discrepancies found among checked blocks.
NIC Handles
A2-MNT
ACRO56922-RIPE
AR61329-RIPE
AS44733
AS50917
DFDZ3-RIPE
DUMY-RIPE
DUMY-RIPE
ORG-DFDZ1-RIPE
ORG-DFDZ2-RIPE
RICK-MNT
RIPE-NCC-END-MNT
+10 more