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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: Caribbean Internet Service · Clear
Snapshot 2026-03-04 Results 5 Page 1 / 1

209.91.237.0/24

Risk Max — LOW Footprint 0.391% Hits 5
Prefix / IP version
/24 · IPv4
Network
209.91.237.0
Broadcast
209.91.237.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
18.4655 , -66.1057
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
AS23114 · Critical Hub Networks
Top organization / ISP
Caribbean Internet Service · Critical Hub Networks
Top geo
Puerto Rico · San Juan · San Juan
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

209.91.194.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
209.91.194.0
Broadcast
209.91.194.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
25.7821 , -80.1928
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS23114 · Critical Hub Networks
Top organization / ISP
Caribbean Internet Service · Critical Hub Networks
Top geo
United States · Florida · Miami
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

209.91.207.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
209.91.207.0
Broadcast
209.91.207.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
18.3547 , -66.0074
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS23114 · Critical Hub Networks
Top organization / ISP
Caribbean Internet Service · Critical Hub Networks
Top geo
Puerto Rico · Trujillo Alto · Trujillo Alto
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

209.91.232.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
209.91.232.0
Broadcast
209.91.232.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
18.4655 , -66.1057
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS23114 · Critical Hub Networks
Top organization / ISP
Caribbean Internet Service · Critical Hub Networks
Top geo
Puerto Rico · San Juan · San Juan
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

209.91.238.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
209.91.238.0
Broadcast
209.91.238.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
18.4413 , -66.1182
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS23114 · Critical Hub Networks
Top organization / ISP
Caribbean Internet Service · Critical Hub Networks
Top geo
Puerto Rico · Cataño · Cataño
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →