Freie Universitaet Berlin
Data as of 2026-08-09
BGP inherited
Cluster stats
| Netblocks | 9 · 196,624 IPv4 addresses |
| IPv6 | 4 prefixes (largest 2003:d3:101e::/48) |
| Cluster ID | 218287125 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 7 shared RIR contact/maintainer handles |
| Registry names | 3 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
Footprint over time
7 weekly snapshots · JSON
9
0 netblocks since 2026-07-05
2026-07-05
peak 9
2026-08-09
IP Ranges (9)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 87.77.0.0/16 | Freie Universitaet Berlin | RIPE | ASSIGNED PI | ● high |
| 130.133.0.0/16 | Freie Universitaet Berlin | RIPE | ASSIGNED PI | ● high |
| 160.45.0.0/16 | Freie Universitaet Berlin | RIPE | ASSIGNED PI | ● high |
| 91.25.65.192/29 | FREIE-UNIVERSITAET-BERLIN-NET | RIPE | ASSIGNED PA | ● low |
| 217.239.216.120/29 | FREIE-UNIVERSITAET-BERLIN-NET | RIPE | ASSIGNED PA | ● low |
| 2003:d3:101e::/48 | FREIE-UNIVERSITAET-BERLIN-NET | RIPE | ASSIGNED | ● low |
| 2003:d3:101f::/48 | FREIE-UNIVERSITAET-BERLIN-NET | RIPE | ASSIGNED | ● low |
| 2a01:4f8:173:1daf::/64 | FREIE-UNIVERSITAET-BERLIN | RIPE | ASSIGNED | ● low |
| 2a01:4f8:221:606::/64 | FREIE-UNIVERSITAET-BERLIN | RIPE | ASSIGNED | ● low |
IPv6 ranges (4)
Domains hosted in this network
what's this?Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(9 of 9)
Possible discrepancies (2)
These blocks are registered to Freie Universitaet Berlin 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.
| 2003:d3:101e::/48 /48 | authorized for AS3320 — Deutsche Telekom AG |
| 2003:d3:101f::/48 /48 | authorized for AS3320 — Deutsche Telekom AG |
Routed via provider/NREN (3)
These blocks are cryptographically authorized for this organisation's national research & education network or transit provider — expected topology for an institution that routes through it, not a discrepancy.
| 160.45.0.0/16 /16 | routed via AS680 — DFN (Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.) |
| 130.133.0.0/16 /16 | routed via AS680 — DFN (Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.) |
| 87.77.0.0/16 /16 | routed via AS680 — DFN (Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.) |
NIC Handles
DFN-LIR-MNT
DTAG-NIC
DUMY-RIPE
DUMY-RIPE
HOS-GUN
ORG-FUB1-RIPE
RIPE-NCC-END-MNT