Open Systems AG
Cluster stats
| Netblocks | 75 |
| All fragments | 86 blocks across 3 clusters |
| Cluster ID | 191609717 |
| Registry | BGP |
| Customers | find customers using this network → |
Evidence & provenance ?
| Attribution | unresolved |
| Shared handles | clustered on 19 shared RIR contact/maintainer handles |
| Registry names | 10 distinct registrant names across these blocks |
| full provenance (JSON) → · how attribution works | |
IP Ranges (75)
showing 50 of 75 — see all — ⬇ export CSV| CIDR | Org name | Registry | Status | Confidence |
|---|---|---|---|---|
| 91.195.128.0/23 | Open Systems Ltd. | BGP | ANNOUNCED | ● high |
| 91.195.128.0/23 | Open Systems Ltd. | RIPE | ASSIGNED PI | ● high |
| 91.204.104.0/22 | Open Systems Ltd. | BGP | ANNOUNCED | ● high |
| 91.204.104.0/22 | Open Systems Ltd. | RIPE | ASSIGNED PI | ● high |
| 91.206.52.34/32 | Open Systems AG | PEERINGDB | ASSIGNED | ● high |
| 91.206.53.34/32 | Open Systems AG | PEERINGDB | ASSIGNED | ● high |
| 91.240.124.0/22 | Open Systems Ltd. | RIPE | ASSIGNED PI | ● high |
| 194.42.48.59/32 | Open Systems AG | PEERINGDB | ASSIGNED | ● high |
| 213.156.224.0/20 | Open Systems AG | BGP | ANNOUNCED | ● high |
| 213.156.240.0/24 | Open Systems AG | BGP | ANNOUNCED | ● high |
| 213.156.241.0/24 | Open Systems AG | BGP | ANNOUNCED | ● high |
| 213.156.246.0/24 | Open Systems AG | BGP | ANNOUNCED | ● high |
| 213.156.247.0/24 | Open Systems AG | BGP | ANNOUNCED | ● high |
| 2001:7f8:c:8235:194:42:48:59/128 | Open Systems AG | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:24::22/128 | Open Systems AG | PEERINGDB | ASSIGNED | ● high |
| 2001:7f8:24::122/128 | Open Systems AG | PEERINGDB | ASSIGNED | ● high |
| 2a00:db0::/32 | Open Systems AG | BGP | ANNOUNCED | ● high |
| 213.156.224.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.225.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.226.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.228.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.229.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.230.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.231.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.232.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.234.0/23 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.236.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.237.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 213.156.238.0/23 | Open Systems AG | RIPE | ASSIGNED PA | ● medium |
| 2a00:db0::/32 | Open Systems AG | RIPE | ALLOCATED-BY-RIR | ● medium |
| 62.67.29.136/29 | Open-Systems | RIPE | ASSIGNED PA | ● low |
| 62.67.29.144/29 | Open-Systems | RIPE | ASSIGNED PA | ● low |
| 62.67.47.224/29 | Open-Systems | RIPE | ASSIGNED PA | ● low |
| 62.67.58.0/29 | Open-Systems | RIPE | ASSIGNED PA | ● low |
| 62.67.58.192/29 | Open-Systems | RIPE | ASSIGNED PA | ● low |
| 62.67.58.224/29 | Open-Systems | RIPE | ASSIGNED PA | ● low |
| 62.67.214.128/29 | Open-Systems | RIPE | ASSIGNED PA | ● low |
| 62.67.221.184/29 | Open-Systems | RIPE | ASSIGNED PA | ● low |
| 185.112.132.0/22 | Open Systems AG | RIPE | ALLOCATED PA | ● low |
| 185.112.132.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● low |
| 185.112.133.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● low |
| 185.112.134.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● low |
| 185.112.135.0/24 | Open Systems AG | RIPE | ASSIGNED PA | ● low |
| 193.28.62.160/28 | Net-Open-Systems-AG | RIPE | ASSIGNED PA | ● low |
| 193.28.62.176/28 | Net-Open-Systems-AG | RIPE | ASSIGNED PA | ● low |
| 193.28.62.192/28 | Net-Open-Systems-AG | RIPE | ASSIGNED PA | ● low |
| 193.128.234.64/28 | OPEN-SYSTEMS-NET | RIPE | ASSIGNED PA | ● low |
| 193.128.234.80/28 | OPEN-SYSTEMS-NET | RIPE | ASSIGNED PA | ● low |
| 193.128.234.96/28 | OPEN-SYSTEMS-NET | RIPE | ASSIGNED PA | ● low |
| 195.122.169.120/29 | Open-Systems | RIPE | ASSIGNED PA | ● low |
Network trust
what's this?
RPKI hygiene: D
how networks compare →
42.7%
of checked blocks have valid RPKI ROA coverage
(32 of 75)
Possible discrepancies (8)
These blocks are registered to Open Systems AG but cryptographically authorized for a different, unrelated network (2 distinct holders) — often M&A history, multi-homing, or outsourced/managed hosting, occasionally worth a closer look.
| 213.156.248.0/24 /24 | authorized for AS8075 — Microsoft Corporation |
| 213.156.253.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
| 213.156.254.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
| 213.156.255.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
| 185.112.132.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
| 185.112.133.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
| 185.112.134.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
| 185.112.135.0/24 /24 | authorized for AS14618 — Amazon.com, Inc. |
NIC Handles
AB34802-RIPE
ABOVENET-MNT
AS1849-MNT
AS43712
AS9092
AS9092
AS9092-MNT
AS9092-MNT
DUMY-RIPE
DUMY-RIPE
LEVEL3-MNT
MNT-OPENSYSTEMS
+7 more