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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: ZARCERO · Clear
Snapshot 2026-03-03 Results 12 Page 1 / 1

201.203.117.0/24

Risk Max — LOW Footprint 15.234% Hits 59
Prefix / IP version
/24 · IPv4
Network
201.203.117.0
Broadcast
201.203.117.255
Observed IPs / Subnet size
39 observed · 256 total
Centroid
9.998299999999995 , -84.11710000000002
Hits / Errors
59 hits · 5 errors
First / Last seen
2026-02-15 02:00 · 2026-02-23 02:00
Top ASN
AS11830 · Instituto Costarricense de Electricidad y Telecom.
Top organization / ISP
ZARCERO · Instituto Costarricense de Electricidad y Telecom.
Top geo
Costa Rica · Heredia Province · Heredia
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

177.93.31.0/24

Risk Max — LOW Footprint 1.562% Hits 10
Prefix / IP version
/24 · IPv4
Network
177.93.31.0
Broadcast
177.93.31.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
9.94248 , -84.08682000000002
Hits / Errors
10 hits · 1 errors
First / Last seen
2026-02-15 02:00 · 2026-02-23 02:00
Top ASN
AS52263 · Telecable Economico S.A.
Top organization / ISP
Megacable (Cable Zarcero) · Telecable Empresarial
Top geo
Costa Rica · Provincia de San José · San José
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

190.113.254.0/24

Risk Max — LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
190.113.254.0
Broadcast
190.113.254.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-15 02:00 · 2026-02-22 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

138.185.251.0/24

Risk Max — LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
138.185.251.0
Broadcast
138.185.251.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-17 02:00 · 2026-02-20 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

190.113.251.0/24

Risk Max — LOW Footprint 0.781% Hits 3
Prefix / IP version
/24 · IPv4
Network
190.113.251.0
Broadcast
190.113.251.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-16 02:00 · 2026-02-19 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

190.113.249.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
190.113.249.0
Broadcast
190.113.249.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-15 02:00 · 2026-02-19 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

190.113.248.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
190.113.248.0
Broadcast
190.113.248.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-17 02:00 · 2026-02-20 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

179.60.161.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
179.60.161.0
Broadcast
179.60.161.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

179.60.162.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
179.60.162.0
Broadcast
179.60.162.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-20 02:00 · 2026-02-21 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

190.113.252.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
190.113.252.0
Broadcast
190.113.252.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-20 02:00 · 2026-02-21 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

138.185.250.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
138.185.250.0
Broadcast
138.185.250.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-19 02:00 · 2026-02-20 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

138.185.249.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
138.185.249.0
Broadcast
138.185.249.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.1863 , -84.382
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-16 02:00 · 2026-02-17 02:00
Top ASN
AS262241 · COOPERATIVA DE ELECTRIFICACION RURAL DE ALFARO RUIZ R.L.
Top organization / ISP
Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L · Cooperativa De Electrificacion Rural De Alfaro Ruiz R.L.
Top geo
Costa Rica · Alajuela Province · Zarcero
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →