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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: CH SISTEMAS S.R.L · Clear
Snapshot 2026-03-09 Results 3 Page 1 / 1

181.209.78.0/24

Risk Max — LOW Footprint 4.297% Hits 15
Prefix / IP version
/24 · IPv4
Network
181.209.78.0
Broadcast
181.209.78.255
Observed IPs / Subnet size
11 observed · 256 total
Centroid
-28.822006666666663 , -62.87895999999999
Hits / Errors
15 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS52361 · ARSAT - Empresa Argentina de Soluciones Satelitales S.A.
Top organization / ISP
CH SISTEMAS S.R.L · ARSAT - Empresa Argentina de Soluciones Satelitales S.A
Top geo
Argentina · Buenos Aires · Vera
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

181.209.121.0/24

Risk Max — LOW Footprint 0.781% Hits 6
Prefix / IP version
/24 · IPv4
Network
181.209.121.0
Broadcast
181.209.121.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-32.68 , -60.123250000000006
Hits / Errors
6 hits · 1 errors
First / Last seen
2026-02-23 02:00 · 2026-02-28 02:00
Top ASN
AS52361 · ARSAT - Empresa Argentina de Soluciones Satelitales S.A.
Top organization / ISP
CH SISTEMAS S.R.L · ARSAT - Empresa Argentina de Soluciones Satelitales S.A.
Top geo
Argentina · Santa Fe · Sunchales
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

181.13.142.0/24

Risk Max — LOW Footprint 0.781% Hits 6
Prefix / IP version
/24 · IPv4
Network
181.13.142.0
Broadcast
181.13.142.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-26.816 , -65.2154
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-24 02:00
Top ASN
AS7303 · Telecom Argentina S.A.
Top organization / ISP
CH SISTEMAS S.R.L · Telecom Argentina S.A.
Top geo
Argentina · Tucuman · San Miguel de Tucumán
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →