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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.
Active filter: Three Rivers · Clear
Snapshot 2026-01-21 Results 5 Page 1 / 1

66.249.75.0/24

Risk Max — LOW Footprint 0.781% Hits 3
Prefix / IP version
/24 · IPv4
Network
66.249.75.0
Broadcast
66.249.75.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
41.9409 , -85.63280000000002
Hits / Errors
3 hits · 0 errors
First / Last seen
2025-12-17 03:26 · 2025-12-17 10:04
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · Michigan · Three Rivers
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2
Open report →

66.249.72.0/24

Risk Max — LOW Footprint 0.781% Hits 3
Prefix / IP version
/24 · IPv4
Network
66.249.72.0
Broadcast
66.249.72.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
41.9409 , -85.63280000000002
Hits / Errors
3 hits · 2 errors
First / Last seen
2025-11-06 04:06 · 2025-11-06 04:06
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · Michigan · Three Rivers
Window / Updated
2025-11-03 → 2025-11-10 · Updated 2026-01-14 · v2
Open report →

66.249.73.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
66.249.73.0
Broadcast
66.249.73.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
41.9409 , -85.6328
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-11-25 09:17 · 2025-11-25 09:17
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · Michigan · Three Rivers
Window / Updated
2025-11-24 → 2025-12-01 · Updated 2026-01-14 · v2
Open report →

66.249.74.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
66.249.74.0
Broadcast
66.249.74.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.9409 , -85.6328
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-12-17 02:56 · 2025-12-17 02:56
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · Michigan · Three Rivers
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2
Open report →

12.53.115.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
12.53.115.0
Broadcast
12.53.115.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.437 , -118.8919
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-02-17 22:54 · 2025-02-17 22:54
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
Kaweah Computers · AT&T Enterprises, LLC
Top geo
United States · California · Three Rivers
Window / Updated
2025-02-17 → 2025-02-24 · Updated 2026-01-14 · v2
Open report →