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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.

104.243.38.0/24

Risk Max 1 LOW Footprint 0.391% Hits 14
Prefix / IP version
/24 · IPv4
Network
104.243.38.0
Broadcast
104.243.38.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.5511 , -74.4606
Hits / Errors
14 hits · 6 errors
First / Last seen
2024-01-25 04:50 · 2024-01-25 13:06
Top ASN
Top organization / ISP
Window / Updated
2024-01-22 → 2024-01-29 · Updated 2026-01-14 · v2

166.137.175.0/24

Risk Max LOW Footprint 0.391% Hits 87
Prefix / IP version
/24 · IPv4
Network
166.137.175.0
Broadcast
166.137.175.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
44.0537 , -71.1284
Hits / Errors
87 hits · 8 errors
First / Last seen
2025-03-28 06:56 · 2025-03-28 07:14
Top ASN
Top organization / ISP
Window / Updated
2025-03-24 → 2025-03-31 · Updated 2026-01-14 · v2

71.129.99.0/24

Risk Max LOW Footprint 0.391% Hits 40
Prefix / IP version
/24 · IPv4
Network
71.129.99.0
Broadcast
71.129.99.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.0848 , -92.4242
Hits / Errors
40 hits · 0 errors
First / Last seen
2024-12-08 20:47 · 2024-12-08 20:50
Top ASN
Top organization / ISP
Top geo
Window / Updated
2024-12-02 → 2024-12-09 · Updated 2026-01-14 · v2

198.52.237.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
198.52.237.0
Broadcast
198.52.237.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.8769 , -79.0512
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-08-27 17:28 · 2025-08-27 17:28
Top organization / ISP
Window / Updated
2025-08-25 → 2025-09-01 · Updated 2026-01-14 · v2

198.52.239.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
198.52.239.0
Broadcast
198.52.239.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.7827 , -79.1473
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-08-06 15:43 · 2025-08-06 15:43
Top organization / ISP
Window / Updated
2025-08-04 → 2025-08-11 · Updated 2026-01-14 · v2

166.182.252.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
166.182.252.0
Broadcast
166.182.252.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.4371 , -77.2289
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-04 23:42 · 2025-08-04 23:42
Top ASN
AS6614 · T-Mobile USA, Inc.
Top organization / ISP
Window / Updated
2025-08-04 → 2025-08-11 · Updated 2026-01-14 · v2

206.195.91.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
206.195.91.0
Broadcast
206.195.91.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.7827 , -79.1473
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-04 14:23 · 2025-08-04 14:23
Top organization / ISP
Window / Updated
2025-08-04 → 2025-08-11 · Updated 2026-01-14 · v2

64.138.207.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
64.138.207.0
Broadcast
64.138.207.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.8769 , -79.0512
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-02 22:14 · 2025-08-02 22:14
Top organization / ISP
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

24.144.38.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
24.144.38.0
Broadcast
24.144.38.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.0812 , -92.4722
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-24 04:18 · 2025-07-24 04:18
Top ASN
AS12231 · Conway Corporation
Top organization / ISP
Top geo
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2

149.115.13.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
149.115.13.0
Broadcast
149.115.13.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.0812 , -92.4722
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-22 16:31 · 2025-07-22 16:31
Top ASN
AS12231 · Conway Corporation
Top organization / ISP
Top geo
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2

66.153.209.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
66.153.209.0
Broadcast
66.153.209.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.8769 , -79.0512
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-06 02:22 · 2025-05-06 02:22
Top organization / ISP
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

149.115.52.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
149.115.52.0
Broadcast
149.115.52.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.0812 , -92.4722
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-05 19:00 · 2025-05-05 19:00
Top ASN
AS12231 · Conway Corporation
Top organization / ISP
Top geo
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

172.75.109.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.75.109.0
Broadcast
172.75.109.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.8769 , -79.0512
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-05 09:40 · 2025-05-05 09:40
Top ASN
Top organization / ISP
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2