F3 Netze e.V.
Cluster stats
| Netblocks | 19 |
| All fragments | 21 blocks across 2 clusters |
| Cluster ID | 191779911 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 10 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
IP Ranges (19)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 81.95.4.184/29 | F3 Netze e.V. | RIPE | ASSIGNED PA | ● high |
| 185.220.100.0/24 | F3 Netze e.V. | BGP | ANNOUNCED | ● high |
| 2a01:4a0:4b::/48 | F3 Netze e.V. | RIPE | ASSIGNED | ● high |
| 2a0b:f4c0::/40 | F3 Netze e.V. | BGP | ANNOUNCED | ● high |
| 2a0b:f4c0:100::/48 | F3 Netze e.V. | BGP | ANNOUNCED | ● high |
| 2a0b:f4c0:16c::/48 | F3 Netze e.V. | BGP | ANNOUNCED | ● high |
| 2a0b:f4c0:1a4::/48 | F3 Netze e.V. | BGP | ANNOUNCED | ● high |
| 2a0b:f4c0:1b4::/48 | F3 Netze e.V. | BGP | ANNOUNCED | ● high |
| 2a0b:f4c0:400::/48 | F3 Netze e.V. | BGP | ANNOUNCED | ● high |
| 185.220.100.0/24 | F3 Netze e.V. | RIPE | SUB-ALLOCATED PA | ● medium |
| 185.220.100.128 – 185.220.100.239 | F3 Netze e.V. | RIPE | ASSIGNED PA | ● medium |
| 185.220.100.240/28 | F3 Netze e.V. | RIPE | ASSIGNED PA | ● medium |
| 2a0b:f4c0::/40 | F3 Netze e.V. | RIPE | AGGREGATED-BY-LIR | ● medium |
| 2a0b:f4c0::/32 | F3 Netze e.V. | RIPE | ALLOCATED-BY-LIR | ● medium |
| 2a0b:f4c0:100::/48 | F3 Netze e.V. | RIPE | ASSIGNED | ● medium |
| 2a0b:f4c0:16c::/48 | F3 Netze e.V. | RIPE | ASSIGNED | ● medium |
| 2a0b:f4c0:1a4::/48 | F3 Netze e.V. | RIPE | ASSIGNED | ● medium |
| 2a0b:f4c0:1b4::/48 | F3 Netze e.V. | RIPE | ASSIGNED | ● medium |
| 2a0b:f4c0:400::/48 | F3 Netze e.V. | RIPE | ASSIGNED | ● medium |
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(19 of 19)
Possible discrepancies (1)
These blocks are registered to F3 Netze e.V. but cryptographically authorized for a different, unrelated network (1 distinct holder) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2a01:4a0:4b::/48 /48 | authorized for AS33891 — Core-Backbone GmbH |
NIC Handles
AS205100
CORE-BACKBONE
DUMY-RIPE
DUMY-RIPE
F3NETZE
F3NETZE
ORG-FNE4-RIPE
ORG-FNE6-RIPE
ZWIEBELFREUNDE
de-zwf-1-mnt