CUST1
BGP inherited
Cluster stats
| Netblocks | 7 · 1,338 IPv4 addresses |
| Registered in | France (5) · Czechia (1) |
| All fragments | 8 blocks across 2 clusters |
| Cluster ID | 211063452 |
| 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 | 3 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 |
|---|---|---|---|---|
| 5.253.132.0/24 | CUST1 | RIPE | ASSIGNED PA | ● low |
| 139.28.116.64/26 | CUST1 | RIPE | ASSIGNED PA | ● low |
| 185.19.224.0/24 | CUST1 | RIPE | ASSIGNED PA | ● low |
| 185.23.138.0/24 | CUST1 | RIPE | ASSIGNED PA | ● low |
| 185.148.252.0/24 | cust1 | RIPE | ASSIGNED PA | ● low |
| 185.243.16.0/24 | CUST1 | RIPE | ASSIGNED PA | ● low |
| 2a07:3e06::/32 | NET-CUST1 | RIPE | ALLOCATED-BY-LIR | ● low |
Network trust
what's this?
RPKI hygiene: C
how networks compare →
71.4%
of checked blocks have valid RPKI ROA coverage
(5 of 7)
Possible discrepancies (4)
These blocks are registered to CUST1 but cryptographically authorized for a different, unrelated network (3 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 2a07:3e06::/32 /32 | authorized for AS559 — SWITCH |
| 185.148.252.0/24 /24 | authorized for AS44821 — Koesio Nord Ouest SAS |
| 185.19.224.0/24 /24 | authorized for AS25540 — Alphalink SASU |
| 185.243.16.0/24 /24 | authorized for AS25540 — Alphalink SASU |
NIC Handles
DUMY-RIPE
DUMY-RIPE
MNT-CPRO
ch-heig-vd-1-mnt
mnt-cz-dobnet-1