ESR
Cluster stats
| Netblocks | 21 |
| All fragments | 38 blocks across 10 clusters |
| Cluster ID | 192070271 |
| Registry | RIPE |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 7 shared RIR contact/maintainer handles |
| Registry names | 2 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
IP Ranges (21)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 62.80.42.232/29 | ESR-NET | RIPE | ASSIGNED PA | ● low |
| 62.103.38.240/28 | ESR | RIPE | ASSIGNED PA | ● low |
| 81.3.1.56/29 | ESR-NET | RIPE | ASSIGNED PA | ● low |
| 178.237.89.0/24 | ESR | RIPE | ASSIGNED PA | ● low |
| 178.237.90.0/24 | ESR | RIPE | ASSIGNED PA | ● low |
| 194.12.22.0/24 | ESR | RIPE | ASSIGNED PA | ● low |
| 194.12.23.0/24 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.129.0/24 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.130.0/24 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.131.0/24 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.132.0/24 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.152.64/26 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.152.128/28 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.152.160/27 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.153.0/26 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.153.208/28 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.154.176/29 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.154.184/29 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.157.16/28 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.157.128/29 | ESR | RIPE | ASSIGNED PA | ● low |
| 213.221.157.144/28 | ESR | RIPE | ASSIGNED PA | ● low |
Network trust
what's this?
RPKI hygiene: A
how networks compare →
100.0%
of checked blocks have valid RPKI ROA coverage
(21 of 21)
Possible discrepancies (8)
These blocks are registered to ESR 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.
| 213.221.129.0/24 /24 | authorized for AS15547 — netplus.ch SA |
| 213.221.130.0/24 /24 | authorized for AS15547 — netplus.ch SA |
| 213.221.131.0/24 /24 | authorized for AS15547 — netplus.ch SA |
| 213.221.132.0/24 /24 | authorized for AS15547 — netplus.ch SA |
| 178.237.89.0/24 /24 | authorized for AS15547 — netplus.ch SA |
| 178.237.90.0/24 /24 | authorized for AS15547 — netplus.ch SA |
| 194.12.22.0/24 /24 | authorized for AS15547 — netplus.ch SA |
| 194.12.23.0/24 /24 | authorized for AS15547 — netplus.ch SA |
NIC Handles
AS15547-MNT
AS24679-MNT
CLARANETDE-MNT
DUMY-RIPE
DUMY-RIPE
LIR-CH-TVS2NET-MNT
OTENET-GR-MNT