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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: Quesada · Clear
Snapshot 2026-03-19 Results — Page 1 / 1

190.211.117.0/24

Risk Max — LOW Footprint 3.906% Hits 14
Prefix / IP version
/24 · IPv4
Network
190.211.117.0
Broadcast
190.211.117.255
Observed IPs / Subnet size
10 observed · 256 total
Centroid
10.328000000000001 , -84.4099
Hits / Errors
14 hits · 1 errors
First / Last seen
2026-03-08 02:00 · 2026-03-12 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

190.211.121.0/24

Risk Max — LOW Footprint 3.516% Hits 11
Prefix / IP version
/24 · IPv4
Network
190.211.121.0
Broadcast
190.211.121.255
Observed IPs / Subnet size
9 observed · 256 total
Centroid
10.328000000000001 , -84.4099
Hits / Errors
11 hits · 0 errors
First / Last seen
2026-03-08 02:00 · 2026-03-12 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

190.211.120.0/24

Risk Max — LOW Footprint 3.125% Hits 12
Prefix / IP version
/24 · IPv4
Network
190.211.120.0
Broadcast
190.211.120.255
Observed IPs / Subnet size
8 observed · 256 total
Centroid
10.328000000000001 , -84.4099
Hits / Errors
12 hits · 0 errors
First / Last seen
2026-03-08 02:00 · 2026-03-12 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

190.211.119.0/24

Risk Max — LOW Footprint 2.734% Hits 10
Prefix / IP version
/24 · IPv4
Network
190.211.119.0
Broadcast
190.211.119.255
Observed IPs / Subnet size
7 observed · 256 total
Centroid
10.328 , -84.4099
Hits / Errors
10 hits · 0 errors
First / Last seen
2026-03-08 02:00 · 2026-03-13 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

190.211.123.0/24

Risk Max — LOW Footprint 1.953% Hits 6
Prefix / IP version
/24 · IPv4
Network
190.211.123.0
Broadcast
190.211.123.255
Observed IPs / Subnet size
5 observed · 256 total
Centroid
10.328000000000001 , -84.4099
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-03-08 02:00 · 2026-03-12 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

190.211.122.0/24

Risk Max — LOW Footprint 1.562% Hits 6
Prefix / IP version
/24 · IPv4
Network
190.211.122.0
Broadcast
190.211.122.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
10.328 , -84.4099
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-03-08 02:00 · 2026-03-11 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

190.211.118.0/24

Risk Max — LOW Footprint 1.562% Hits 4
Prefix / IP version
/24 · IPv4
Network
190.211.118.0
Broadcast
190.211.118.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
10.328 , -84.4099
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-03-08 02:00 · 2026-03-13 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

190.211.116.0/24

Risk Max — LOW Footprint 1.562% Hits 4
Prefix / IP version
/24 · IPv4
Network
190.211.116.0
Broadcast
190.211.116.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
10.328 , -84.4099
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-03-09 02:00 · 2026-03-11 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

143.208.171.0/24

Risk Max — LOW Footprint 1.172% Hits 4
Prefix / IP version
/24 · IPv4
Network
143.208.171.0
Broadcast
143.208.171.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
10.328 , -84.4099
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-03-08 02:00 · 2026-03-12 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

143.208.170.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
143.208.170.0
Broadcast
143.208.170.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
10.328 , -84.4099
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-03-09 02:00 · 2026-03-12 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

201.203.123.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
201.203.123.0
Broadcast
201.203.123.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.9983 , -84.1171
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-03-08 02:00 · 2026-03-09 02:00
Top ASN
AS11830 · Instituto Costarricense de Electricidad y Telecom.
Top organization / ISP
Ciudad Quesada · Instituto Costarricense de Electricidad y Telecom.
Top geo
Costa Rica · Heredia Province · Heredia
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

143.208.169.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.208.169.0
Broadcast
143.208.169.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.328 , -84.4099
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-11 02:00 · 2026-03-12 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

168.228.50.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
168.228.50.0
Broadcast
168.228.50.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.328 , -84.4099
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-11 02:00 · 2026-03-12 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

143.208.168.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.208.168.0
Broadcast
143.208.168.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.328 , -84.4099
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-09 02:00 · 2026-03-10 02:00
Top ASN
AS262145 · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top organization / ISP
Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.) · Cooperativa de Electrificación Rural de San Carlos R.L. (Coopelesca R.L.)
Top geo
Costa Rica · Alajuela Province · Quesada
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

201.203.221.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
201.203.221.0
Broadcast
201.203.221.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.9983 , -84.1171
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-08 02:00 · 2026-03-09 02:00
Top ASN
AS11830 · Instituto Costarricense de Electricidad y Telecom.
Top organization / ISP
Ciudad Quesada · Instituto Costarricense de Electricidad y Telecom.
Top geo
Costa Rica · Heredia Province · Heredia
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →