NET-DE-Grenke
BGP inherited
Cluster stats
| Netblocks | 7 |
| All fragments | 13 blocks across 5 clusters |
| Cluster ID | 209543786 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 3 shared RIR contact/maintainer handles |
| Registry names | 4 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
5 weekly snapshots · JSON
7
0 netblocks since 2026-07-05
2026-07-05
peak 7
2026-07-19
IP Ranges (7)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 212.121.144.72/29 | NET-DE-GRENKE-AG | RIPE | ASSIGNED PA | ● low |
| 213.61.174.216/29 | NET-DE-Grenke-Ag | RIPE | ASSIGNED PA | ● low |
| 213.61.181.24/29 | NET-DE-Grenke | RIPE | ASSIGNED PA | ● low |
| 217.110.180.176/29 | Net-DE-Grenke | RIPE | ASSIGNED PA | ● low |
| 217.110.180.216/29 | NET-DE-Grenke | RIPE | ASSIGNED PA | ● low |
| 217.111.15.104/29 | NET-DE-Grenke | RIPE | ASSIGNED PA | ● low |
| 2001:920:18e7:1d00::/56 | NET-DE-Grenke-Ag | RIPE | ASSIGNED | ● low |
Possibly related to this organisation
what's this?Same name family
Separately-registered clusters whose names share “NET DE Grenke” — often
per-country or per-system registrations of the same brand, occasionally a different
organisation sharing the name. Not counted in this organisation's own footprint.
- NET-DE-GRENKE-Business-Solutions-GmbH-and-Co-KG 2 blocks
- NET-DE-Grenke-Digital-GmbH 2 blocks
- Net-DE-Grenke-Leasing 1 blocks
- NET-DE-Grenke-Business-Solutions-GmbH-Co-KG 1 blocks
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.
- Grenke Leasing via COLT Technology Services Group Limited sub-allocation
- GRENKELEASING-211210 via DNA Oyj sub-allocation
- GRENKELEASING-220128 via DNA Oyj sub-allocation
- GRENKE-DE-NBG-FIREWALL-TRANSFER-NET via noris network AG sub-allocation
- Grenkelocazione S R L via Fastweb SpA sub-allocation
- GRENKELEASING-260617 via DNA Oyj sub-allocation
- Grenke Bank Ag Branch Italy via COLT Technology Services Group Limited sub-allocation
- Grenke Business Solutions Gmbh Co Kg via COLT Technology Services Group Limited sub-allocation
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(7 of 7)
Possible discrepancies (1)
These blocks are registered to NET-DE-Grenke 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.
| 2001:920:18e7:1d00::/56 /56 | authorized for AS8220 — COLT Technology Services Group Limited |
NIC Handles
DE-COLT-MNT
DUMY-RIPE
DUMY-RIPE