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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: Cartago Province · Clear
Snapshot 2026-03-13 Results 24 Page 1 / 1

45.130.162.0/24

Risk Max — LOW Footprint 8.203% Hits 29
Prefix / IP version
/24 · IPv4
Network
45.130.162.0
Broadcast
45.130.162.255
Observed IPs / Subnet size
21 observed · 256 total
Centroid
9.864100000000004 , -83.91409999999998
Hits / Errors
29 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS274032 · SERVICIOS FEMAROCA TV SOCIEDAD ANONIMA
Top organization / ISP
Servicios Femaroca TV S.A · Servicios Femaroca TV Sociedad Anonima
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

138.94.57.0/24

Risk Max — LOW Footprint 1.953% Hits 5
Prefix / IP version
/24 · IPv4
Network
138.94.57.0
Broadcast
138.94.57.255
Observed IPs / Subnet size
5 observed · 256 total
Centroid
9.8641 , -83.9141
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-28 02:00
Top ASN
AS263749 · Junta Administrativa del Servicio Eléctrico Municipal de Cartago(JASEC)
Top organization / ISP
— · Junta Administrativa del Servicio Eléctrico Municipal de Cartago
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.159.204.0/24

Risk Max — LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
186.159.204.0
Broadcast
186.159.204.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
9.893 , -83.9369
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-03-02 02:00
Top ASN
AS52228 · Cable Tica
Top organization / ISP
Cable Tica · Cable Tica
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

190.10.54.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
190.10.54.0
Broadcast
190.10.54.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
9.91906 , -84.0246
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-03-02 02:00
Top ASN
AS11830 · Instituto Costarricense de Electricidad y Telecom.
Top organization / ISP
Amnet Television · Instituto Costarricense de Electricidad y Telecom.
Top geo
Costa Rica · Cartago Province · Curridabat
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.4.38.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
186.4.38.0
Broadcast
186.4.38.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
9.8647 , -83.9645
Hits / Errors
2 hits · 1 errors
First / Last seen
2026-02-25 02:00 · 2026-03-01 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.4.46.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
186.4.46.0
Broadcast
186.4.46.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
9.85595 , -83.9527
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-03-01 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.176.96.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
186.176.96.0
Broadcast
186.176.96.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
9.8647 , -83.9645
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.176.101.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
186.176.101.0
Broadcast
186.176.101.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8641 , -83.9141
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.176.88.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.176.88.0
Broadcast
186.176.88.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8857 , -83.6897
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Turrialba
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.4.34.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.4.34.0
Broadcast
186.4.34.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8833 , -83.9151
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

181.194.164.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
181.194.164.0
Broadcast
181.194.164.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8472 , -83.9409
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS11830 · Instituto Costarricense de Electricidad y Telecom.
Top organization / ISP
Cartago DHCP · Instituto Costarricense de Electricidad y Telecom.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.4.42.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.4.42.0
Broadcast
186.4.42.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8472 , -83.9409
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

138.94.59.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
138.94.59.0
Broadcast
138.94.59.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8641 , -83.9141
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS263749 · Junta Administrativa del Servicio Eléctrico Municipal de Cartago(JASEC)
Top organization / ISP
— · Junta Administrativa del Servicio Eléctrico Municipal de Cartago
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.15.41.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.15.41.0
Broadcast
186.15.41.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.9072 , -84.0031
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS52228 · Cable Tica
Top organization / ISP
Cable Tica · Cable Tica
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.4.47.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.4.47.0
Broadcast
186.4.47.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8647 , -83.9645
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

201.206.81.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
201.206.81.0
Broadcast
201.206.81.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8641 , -83.9141
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS11830 · Instituto Costarricense de Electricidad y Telecom.
Top organization / ISP
LAUREL · Instituto Costarricense de Electricidad y Telecom.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

181.194.167.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
181.194.167.0
Broadcast
181.194.167.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8641 , -83.9141
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS11830 · Instituto Costarricense de Electricidad y Telecom.
Top organization / ISP
Cartago DHCP · Instituto Costarricense de Electricidad y Telecom.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.4.45.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.4.45.0
Broadcast
186.4.45.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8472 , -83.9409
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.15.45.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.15.45.0
Broadcast
186.15.45.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8647 , -83.9645
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS52228 · Cable Tica
Top organization / ISP
Cable Tica · Cable Tica
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.4.36.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.4.36.0
Broadcast
186.4.36.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8472 , -83.9409
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.15.46.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.15.46.0
Broadcast
186.15.46.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8647 , -83.9645
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS52228 · Cable Tica
Top organization / ISP
Cable Tica · Cable Tica
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

181.194.165.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
181.194.165.0
Broadcast
181.194.165.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8647 , -83.9645
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS11830 · Instituto Costarricense de Electricidad y Telecom.
Top organization / ISP
Cartago DHCP · Instituto Costarricense de Electricidad y Telecom.
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.15.44.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.15.44.0
Broadcast
186.15.44.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8647 , -83.9645
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS52228 · Cable Tica
Top organization / ISP
Cable Tica · Cable Tica
Top geo
Costa Rica · Cartago Province · Cartago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

186.177.125.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
186.177.125.0
Broadcast
186.177.125.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
9.8429 , -83.8472
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS262197 · MILLICOM CABLE COSTA RICA S.A.
Top organization / ISP
Millicom Cable Costa Rica S.A · Millicom Cable Costa Rica S.A.
Top geo
Costa Rica · Cartago Province · Paraíso
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →