1B Holding zRt
BGP inherited
Cluster stats
| Netblocks | 6 · 3,579 IPv4 addresses |
| Cluster ID | 210390552 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 5 shared RIR contact/maintainer handles |
| Registry names | 1 distinct registrant name 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 |
|---|---|---|---|---|
| 185.40.20.0/22 | 1B Holding zRt | RIPE | ALLOCATED PA | ● low |
| 217.13.96.0/23 | 1B Holding zRt | RIPE | ALLOCATED PA | ● low |
| 217.13.100.0/22 | 1B Holding zRt | RIPE | ALLOCATED PA | ● low |
| 217.13.106.0 – 217.13.108.255 | 1B Holding zRt | RIPE | ALLOCATED PA | ● low |
| 217.13.110.0/24 | 1B Holding zRt | RIPE | ALLOCATED PA | ● low |
| 2a01:4be0::/32 | 1B Holding zRt | RIPE | ALLOCATED-BY-RIR | ● low |
Possibly related to this organisation
what's this?Sub-allocations under carriers
IP blocks an ISP reassigned to a similarly-named customer — decoded from the ISP's own
naming convention, not a direct registration.
- IPv4_RANGE_IDS_Holding_GmbH_over_NETCOM_BW via NetCom BW GmbH sub-allocation
- Mns Familiale Holding via Orange S.A. sub-allocation
- Amaya_Motor_Holdings via Mesh Telecom Pty Ltd sub-allocation
- Groupe Lacin Holding via Orange S.A. sub-allocation
- TELE2-CUST-CMS-COUGAR-HOLDING via Odido Netherlands B.V. sub-allocation
- TELE2-CUST-TRIPLE-M-HOLDING via Odido Netherlands B.V. sub-allocation
- PAK-HOLDING-NET via Vodafone Net Iletisim Hizmetler AS sub-allocation
- TELE2-CUST-WERELDHAVE-MANAGEMENT-HOLDING via Odido Netherlands B.V. sub-allocation
NIC Handles
DUMY-RIPE
DUMY-RIPE
ORG-Hz1-RIPE
RIPE-NCC-HM-MNT
ZBALAZS-MNT