DE SPECIALISTEN GROEP BV
DE_SPECIALISTEN_GROEP_BV
Registry
Cluster stats
| Netblocks | 13 |
| All fragments | 16,498 blocks across 9,930 clusters |
| Cluster ID | 205174078 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | Registry record |
| Shared handles | clustered on 4 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
Footprint over time
4 weekly snapshots · JSON
13
0 netblocks since 2026-07-05
2026-07-05
peak 13
2026-07-13
IP Ranges (13)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 90.145.235.8/30 | DE_SPECIALISTEN_GROEP | RIPE | ASSIGNED PA | ● low |
| 195.85.167.168/29 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED PA | ● low |
| 195.85.188.104/29 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED PA | ● low |
| 213.34.30.228/30 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED PA | ● low |
| 217.100.90.204/30 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED PA | ● low |
| 217.100.156.204/30 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED PA | ● low |
| 217.100.169.188/30 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED PA | ● low |
| 2001:41f0:a85::/48 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED | ● low |
| 2001:41f0:e7e::/48 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED | ● low |
| 2001:41f0:6d8d::/48 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED | ● low |
| 2001:41f0:88fb::/48 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED | ● low |
| 2001:41f0:894b::/48 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED | ● low |
| 2001:41f0:9652::/48 | DE_SPECIALISTEN_GROEP_BV | RIPE | ASSIGNED | ● low |
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(13 of 13)
Possible discrepancies (6)
These blocks are registered to DE_SPECIALISTEN_GROEP_BV 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.
| 2001:41f0:9652::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:a85::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:e7e::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:88fb::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:894b::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
| 2001:41f0:6d8d::/48 /48 | authorized for AS33915 — Vodafone Libertel B.V. |
NIC Handles
DUMY-RIPE
DUMY-RIPE
Eurofiber-MNT
ZIGGO-AUTOREG1