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Interesting Subnets

Directory of active subnets observed by Syndu. Each row is the latest cached SubnetSnapshot per subnet and includes: density, traffic, geo/ASN representatives, and risk distribution.

217.154.91.0/24

Risk Max 100 HIGH Footprint 0.391% Hits 3186
Prefix / IP version
/24 · IPv4
Network
217.154.91.0
Broadcast
217.154.91.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
52.52 , 13.404999999999998
Hits / Errors
3186 hits · 138 errors
First / Last seen
2025-05-22 20:22 · 2025-05-23 18:37
Top ASN
AS8560 · IONOS SE
Top organization / ISP
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

217.154.5.0/24

Risk Max 55 MED Footprint 0.391% Hits 1078
Prefix / IP version
/24 · IPv4
Network
217.154.5.0
Broadcast
217.154.5.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.8575 , 2.35138
Hits / Errors
1078 hits · 244 errors
First / Last seen
2025-02-12 20:23 · 2025-02-16 14:01
Top ASN
AS8560 · IONOS SE
Top organization / ISP
Top geo
Window / Updated
2025-02-10 → 2025-02-17 · Updated 2026-01-14 · v2

217.154.51.0/24

Risk Max 35 MED Footprint 0.391% Hits 269
Prefix / IP version
/24 · IPv4
Network
217.154.51.0
Broadcast
217.154.51.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5072 , -0.127586
Hits / Errors
269 hits · 61 errors
First / Last seen
2025-03-05 11:45 · 2025-03-05 11:48
Top ASN
AS8560 · IONOS SE
Top organization / ISP
Top geo
Window / Updated
2025-03-03 → 2025-03-10 · Updated 2026-01-14 · v2

217.154.1.0/24

Risk Max 9 LOW Footprint 0.391% Hits 15
Prefix / IP version
/24 · IPv4
Network
217.154.1.0
Broadcast
217.154.1.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.8575 , 2.35138
Hits / Errors
15 hits · 6 errors
First / Last seen
2025-09-15 15:23 · 2025-09-15 15:23
Top ASN
AS8560 · IONOS SE
Top organization / ISP
Top geo
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2

86.54.25.0/24

Risk Max 2 LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
86.54.25.0
Broadcast
86.54.25.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.8226 , -0.14413
Hits / Errors
3 hits · 0 errors
First / Last seen
2025-09-16 18:14 · 2025-09-16 18:49
Top ASN
Top organization / ISP
— · MISTRAL
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2

86.54.31.0/24

Risk Max LOW Footprint 0.391% Hits 5
Prefix / IP version
/24 · IPv4
Network
86.54.31.0
Broadcast
86.54.31.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
52.3676 , 4.90414
Hits / Errors
5 hits · 0 errors
First / Last seen
2025-09-16 12:17 · 2025-09-16 12:17
Top ASN
AS12989 · Black HOST Ltd
Top organization / ISP
— · MISTRAL
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2

217.154.83.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
217.154.83.0
Broadcast
217.154.83.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
52.52 , 13.405
Hits / Errors
3 hits · 3 errors
First / Last seen
2025-07-22 18:01 · 2025-07-25 10:56
Top ASN
AS8560 · IONOS SE
Top organization / ISP
— · MISTRAL
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2

217.154.7.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
217.154.7.0
Broadcast
217.154.7.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.8575 , 2.35138
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-09-22 06:45 · 2025-09-23 00:10
Top ASN
AS8560 · IONOS SE
Top organization / ISP
— · MISTRAL
Top geo
Window / Updated
2025-09-22 → 2025-09-29 · Updated 2026-01-14 · v2

217.154.85.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
217.154.85.0
Broadcast
217.154.85.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
52.52 , 13.405
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-04-06 17:59 · 2025-04-06 17:59
Top ASN
AS8560 · IONOS SE
Top organization / ISP
— · MISTRAL
Window / Updated
2025-03-31 → 2025-04-07 · Updated 2026-01-14 · v2

195.200.19.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
195.200.19.0
Broadcast
195.200.19.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
52.3759 , 4.8975
Hits / Errors
1 hits · 0 errors
First / Last seen
2024-12-05 23:24 · 2024-12-05 23:24
Top ASN
AS216071 · SERVERS TECH FZCO
Top organization / ISP
Window / Updated
2024-12-02 → 2024-12-09 · Updated 2026-01-14 · v2