Systemhost Limited
Data as of 2026-09-13
BGP inherited
This organisation
| Netblocks | 10 · 4,609 IPv4 addresses |
| IPv6 | 4 prefixes (largest 2a01:a5c0::/32) |
| Also registered under this name | 13 netblocks across 3 separate records |
| Record ID | 240773954 |
| Registry | PEERINGDB |
| Customers | see who runs inside this network → |
Evidence & provenance ?
| Attribution | BGP parent (inherited) |
| Shared handles | clustered on 8 shared RIR contact/maintainer handles |
| Registry names | 4 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works · report an issue | |
IP Ranges (10)
⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 195.66.226.239/32 | SystemHOST Ltd | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:4::3:6a9:1/128 | SystemHOST Ltd | PEERINGDB | ASSIGNED | ● high |
| 2.57.44.0/22 | Systemhost Limited | RIPE | ALLOCATED PA | ● low |
| 85.236.128.0/21 | Systemhost Limited | RIPE | ALLOCATED PA | ● low |
| 85.236.133.0/25 | Systemhost Limited | RIPE | ASSIGNED PA | ● low |
| 91.233.128.0/23 | Systemhost Limited | RIPE | ASSIGNED PI | ● low |
| 193.93.148.0/22 | Systemhost Limited | RIPE | ASSIGNED PI | ● low |
| 2a00:2381:f16e::/48 | SYSTEMHOST-LTD | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a00:2381:ffd9::/48 | SYSTEMHOST | RIPE | AGGREGATED-BY-LIR | ● low |
| 2a01:a5c0::/32 | Systemhost Limited | RIPE | ALLOCATED-BY-RIR | ● low |
IPv6 ranges (4)
Footprint over time
12 weekly snapshots · JSON
10
0 netblocks since 2026-07-05
2026-07-05
peak 10
2026-09-13
Network trust
what's this?
RPKI hygiene: D
how networks compare →
40.0%
of checked blocks have valid RPKI ROA coverage
(4 of 10)
Possible discrepancies (2)
These blocks are registered to Systemhost Limited 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.
| 2a00:2381:ffd9::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
| 2a00:2381:f16e::/48 /48 | authorized for AS2856 — British Telecommunications Limited |
NIC Handles
AS198313
BTNET-MNT
DUMY-RIPE
DUMY-RIPE
ORG-SL388-RIPE
RIPE-NCC-END-MNT
RIPE-NCC-HM-MNT
SYSTEMHOST-MNT