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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.

68.237.140.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
68.237.140.0
Broadcast
68.237.140.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.3642 , -73.5948
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-07-20 12:20 · 2025-07-20 12:20
Top ASN
Window / Updated
2025-07-14 → 2025-07-21 · Updated 2026-01-14 · v2

68.237.141.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
68.237.141.0
Broadcast
68.237.141.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.3642 , -73.5948
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 10:01 · 2025-05-23 10:01
Top ASN
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

66.243.220.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
66.243.220.0
Broadcast
66.243.220.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0008 , -87.8996
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-06 17:32 · 2025-05-06 17:32
Top ASN
AS5742 · Fidium
Top geo
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

66.243.221.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
66.243.221.0
Broadcast
66.243.221.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6065 , -89.0585
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-06 01:03 · 2025-05-06 01:03
Top ASN
AS5742 · Fidium
Top geo
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

74.209.55.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
74.209.55.0
Broadcast
74.209.55.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
46.942 , -122.606
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-05 11:58 · 2025-05-05 11:58
Top ASN
AS12175 · Rainier Connect
Top geo
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2