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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: Marinha Grande · Clear
Snapshot 2026-03-03 Results 9 Page 1 / 1

188.82.53.0/24

Risk Max — LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
188.82.53.0
Broadcast
188.82.53.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
39.7456 , -8.9321
Hits / Errors
4 hits · 2 errors
First / Last seen
2026-02-17 02:00 · 2026-02-21 02:00
Top ASN
AS3243 · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top organization / ISP
PT Comunicacoes S.A. · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A
Top geo
Portugal · Leiria · Marinha Grande
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

144.64.40.0/24

Risk Max — LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
144.64.40.0
Broadcast
144.64.40.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
39.7346 , -8.9325
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-16 02:00 · 2026-02-20 02:00
Top ASN
AS3243 · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top organization / ISP
PT Comunicacoes · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top geo
Portugal · Leiria · Marinha Grande
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

188.81.155.0/24

Risk Max — LOW Footprint 0.391% Hits 6
Prefix / IP version
/24 · IPv4
Network
188.81.155.0
Broadcast
188.81.155.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.7456 , -8.9321
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-15 02:00 · 2026-02-23 02:00
Top ASN
AS3243 · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top organization / ISP
PT Comunicacoes S.A. · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A
Top geo
Portugal · Leiria · Marinha Grande
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

188.82.23.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
188.82.23.0
Broadcast
188.82.23.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.7456 , -8.9321
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-18 02:00 · 2026-02-19 02:00
Top ASN
AS3243 · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top organization / ISP
PT Comunicacoes S.A. · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A
Top geo
Portugal · Leiria · Marinha Grande
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

2.83.196.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
2.83.196.0
Broadcast
2.83.196.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.7456 , -8.9321
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-16 02:00 · 2026-02-18 02:00
Top ASN
AS3243 · MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top organization / ISP
PT Comunicacoes S.A. · PT Comunicacoes S.A
Top geo
Portugal · Leiria · Marinha Grande
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

109.49.216.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
109.49.216.0
Broadcast
109.49.216.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.7456 , -8.9321
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-18 02:00 · 2026-02-22 02:00
Top ASN
AS2860 · NOS COMUNICACOES, S.A.
Top organization / ISP
— · TVCABO-Portugal
Top geo
Portugal · Leiria · Marinha Grande
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

109.49.213.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.49.213.0
Broadcast
109.49.213.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.7456 , -8.9321
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-20 02:00 · 2026-02-21 02:00
Top ASN
AS2860 · NOS COMUNICACOES, S.A.
Top organization / ISP
— · TVCABO-Portugal
Top geo
Portugal · Leiria · Marinha Grande
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

109.49.208.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.49.208.0
Broadcast
109.49.208.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.7456 , -8.9321
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-19 02:00 · 2026-02-20 02:00
Top ASN
AS2860 · NOS COMUNICACOES, S.A.
Top organization / ISP
— · TVCABO-Portugal
Top geo
Portugal · Leiria · Marinha Grande
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

109.49.210.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.49.210.0
Broadcast
109.49.210.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.7456 , -8.9321
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-17 02:00 · 2026-02-18 02:00
Top ASN
AS2860 · NOS COMUNICACOES, S.A.
Top organization / ISP
— · TVCABO-Portugal
Top geo
Portugal · Leiria · Marinha Grande
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →