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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: STARTELECOM S.A. · Clear
Snapshot 2026-01-22 Results 8 Page 1 / 1

138.59.224.0/24

Risk Max — LOW Footprint 0.781% Hits 10
Prefix / IP version
/24 · IPv4
Network
138.59.224.0
Broadcast
138.59.224.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-25.5036 , -54.65070000000001
Hits / Errors
10 hits · 4 errors
First / Last seen
2025-10-11 07:00 · 2025-10-11 12:54
Top ASN
AS270052 · STARTELECOM S.A.
Top organization / ISP
Startelecom S.A · Startelecom S.A.
Top geo
Paraguay · Alto Paraná Department · Ciudad del Este
Window / Updated
2025-10-06 → 2025-10-13 · Updated 2026-01-14 · v2
Open report →

138.59.226.0/24

Risk Max — LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
138.59.226.0
Broadcast
138.59.226.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-25.5036 , -54.6507
Hits / Errors
5 hits · 3 errors
First / Last seen
2025-09-29 12:51 · 2025-09-30 20:12
Top ASN
AS270052 · STARTELECOM S.A.
Top organization / ISP
Startelecom S.A · Startelecom S.A.
Top geo
Paraguay · Alto Paraná Department · Ciudad del Este
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2
Open report →

154.51.4.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
154.51.4.0
Broadcast
154.51.4.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-25.491 , -57.4557
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-10-02 18:02 · 2025-10-05 20:52
Top ASN
AS270052 · STARTELECOM S.A.
Top organization / ISP
Startelecom S.A · Startelecom S.A.
Top geo
Paraguay · Central Department · Guarambaré
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2
Open report →

138.59.227.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
138.59.227.0
Broadcast
138.59.227.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.3432 , -57.0521
Hits / Errors
3 hits · 1 errors
First / Last seen
2025-10-11 17:53 · 2025-10-11 17:54
Top ASN
AS270052 · STARTELECOM S.A.
Top organization / ISP
Startelecom S.A · Startelecom S.A.
Top geo
Paraguay · Departamento de Concepción · Horqueta
Window / Updated
2025-10-06 → 2025-10-13 · Updated 2026-01-14 · v2
Open report →

37.230.57.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
37.230.57.0
Broadcast
37.230.57.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-25.5036 , -54.6507
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-09-23 08:42 · 2025-09-23 08:42
Top ASN
AS270052 · STARTELECOM S.A.
Top organization / ISP
— · Startelecom S.A.
Top geo
Paraguay · Alto Paraná Department · Ciudad del Este
Window / Updated
2025-09-22 → 2025-09-29 · Updated 2026-01-14 · v2
Open report →

37.230.56.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
37.230.56.0
Broadcast
37.230.56.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-25.5036 , -54.6507
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-09-17 01:02 · 2025-09-17 01:02
Top ASN
AS270052 · STARTELECOM S.A.
Top organization / ISP
— · Startelecom S.A.
Top geo
Paraguay · Alto Paraná Department · Ciudad del Este
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2
Open report →

138.59.225.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
138.59.225.0
Broadcast
138.59.225.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-25.5036 , -54.6507
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-09-30 03:05 · 2025-09-30 03:05
Top ASN
AS270052 · STARTELECOM S.A.
Top organization / ISP
Startelecom S.A · Startelecom S.A.
Top geo
Paraguay · Alto Paraná Department · Ciudad del Este
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2
Open report →

37.230.58.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
37.230.58.0
Broadcast
37.230.58.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-25.5036 , -54.6507
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-06-27 23:32 · 2025-06-27 23:32
Top ASN
AS270052 · STARTELECOM S.A.
Top organization / ISP
— · Startelecom S.A.
Top geo
Paraguay · Alto Paraná Department · Ciudad del Este
Window / Updated
2025-06-23 → 2025-06-30 · Updated 2026-01-14 · v2
Open report →