Biesterfeld SE
GLEIF verified
Complete entity footprint
2 linked clusters ·
7 netblocks ·
3,075 IPv4 addresses
This organisation's clusters combined by evidence —
shared GLEIF corporate family
— not name similarity, so genuinely different organisations that share a name are excluded.
LEI
529900GGYCI0IK2WYI41
Registered name
Biesterfeld SE
Jurisdiction
Ultimate parent
Biesterfeld Vermögensverwaltung GmbH & Co. KG
391200B6UQRD1UG0ZK70
Cluster stats
| Netblocks | 6 · 3,068 IPv4 addresses |
| All fragments | 10 blocks across 4 clusters |
| Cluster ID | 209905288 |
| Registry | BGP |
| Owner jurisdiction | DE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | GLEIF legal-entity match |
| Legal identity | LEI 529900GGYCI0IK2WYI41 |
| Shared handles | clustered on 11 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
6
0 netblocks since 2026-07-05
2026-07-05
peak 6
2026-07-19
IP Ranges (6)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 91.227.98.0/23 | Biesterfeld SE | RIPE | ASSIGNED PI | ● high |
| 91.227.98.0/23 | Biesterfeld SE | BGP | ANNOUNCED | ● high |
| 185.89.228.0/22 | Biesterfeld SE | BGP | ANNOUNCED | ● high |
| 2a05:d980::/29 | Biesterfeld SE | BGP | ANNOUNCED | ● high |
| 185.89.228.0/22 | Biesterfeld SE | RIPE | ALLOCATED PA | ● low |
| 2a05:d980::/29 | Biesterfeld SE | RIPE | ALLOCATED-BY-RIR | ● low |
Corporate group (2 confirmed entities)
+4 additional unconfirmed candidates not shown — full list (JSON)- ABIC Kemi AB 1 blocks
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(6 of 6)
No discrepancies found among checked blocks.
NIC Handles
AS200978
BIT-SERV-GMBH-MNT
BIT-SERV-GMBH-MNT
BIT-SERV-MNT
DTAG-NIC
DTAG-RR
DUMY-RIPE
DUMY-RIPE
ORG-BG97-RIPE
RIPE-NCC-END-MNT
RIPE-NCC-HM-MNT