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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.

104.203.8.0/24

Risk Max LOW Footprint 0.391% Hits 70
Prefix / IP version
/24 · IPv4
Network
104.203.8.0
Broadcast
104.203.8.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
25.7701 , -80.1928
Hits / Errors
70 hits · 25 errors
First / Last seen
2025-03-14 18:33 · 2025-03-15 01:22
Top ASN
AS30404 · Blue Stream
Top organization / ISP
Top geo
Window / Updated
2025-03-10 → 2025-03-17 · Updated 2026-01-14 · v2

216.225.77.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
216.225.77.0
Broadcast
216.225.77.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
27.1965 , -80.2583
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 13:13 · 2025-05-23 13:13
Top ASN
AS30404 · Blue Stream
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

57.135.172.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
57.135.172.0
Broadcast
57.135.172.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
26.2685 , -80.2717
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-12-23 20:15 · 2025-12-23 20:15
Top ASN
AS30404 · Blue Stream
Top organization / ISP
Window / Updated
2025-12-22 → 2025-12-29 · Updated 2026-01-14 · v2

104.203.122.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
104.203.122.0
Broadcast
104.203.122.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
30.3337 , -81.6542
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-10-03 18:45 · 2025-10-03 18:45
Top ASN
AS30404 · Blue Stream
Top organization / ISP
— · Blue Stream
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2

104.203.10.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
104.203.10.0
Broadcast
104.203.10.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
25.7701 , -80.1928
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-08-02 20:41 · 2025-08-02 20:41
Top ASN
AS30404 · Blue Stream
Top organization / ISP
Top geo
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

57.135.145.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
57.135.145.0
Broadcast
57.135.145.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
26.2685 , -80.2717
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-05 14:08 · 2025-05-05 14:08
Top ASN
AS30404 · Blue Stream
Top organization / ISP
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

139.138.13.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
139.138.13.0
Broadcast
139.138.13.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
28.5436 , -81.3738
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-04 23:42 · 2025-05-04 23:42
Top ASN
AS30404 · Blue Stream
Top organization / ISP
Top geo
Window / Updated
2025-04-28 → 2025-05-05 · Updated 2026-01-14 · v2

104.203.173.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
104.203.173.0
Broadcast
104.203.173.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
27.2939 , -80.3503
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-04 23:08 · 2025-05-04 23:08
Top ASN
AS30404 · Blue Stream
Top organization / ISP
Window / Updated
2025-04-28 → 2025-05-05 · Updated 2026-01-14 · v2