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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: Valongo · Clear
Snapshot 2026-03-03 Results 10 Page 1 / 1

213.22.131.0/24

Risk Max — LOW Footprint 4.688% Hits 16
Prefix / IP version
/24 · IPv4
Network
213.22.131.0
Broadcast
213.22.131.255
Observed IPs / Subnet size
12 observed · 256 total
Centroid
40.649775 , -8.460431250000001
Hits / Errors
16 hits · 2 errors
First / Last seen
2026-02-15 02:00 · 2026-02-22 02:00
Top ASN
AS2860 · NOS COMUNICACOES, S.A.
Top organization / ISP
NOS Comunicacoes S.A. · NOS COMUNICACOES S.A
Top geo
Portugal · Aveiro · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

94.132.225.0/24

Risk Max — LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
94.132.225.0
Broadcast
94.132.225.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
41.19068 , -8.52432
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-15 02:00 · 2026-02-18 02:00
Top ASN
AS2860 · NOS COMUNICACOES, S.A.
Top organization / ISP
TVCABO-Portugal · NOS Comunicacoes S.A.
Top geo
Portugal · Porto · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

94.132.224.0/24

Risk Max — LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
94.132.224.0
Broadcast
94.132.224.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
41.18555 , -8.53815
Hits / Errors
4 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 · NOS Comunicacoes S.A.
Top geo
Portugal · Porto · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

148.71.240.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
148.71.240.0
Broadcast
148.71.240.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
41.1941 , -8.5151
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-18 02:00 · 2026-02-20 02:00
Top ASN
AS12353 · Vodafone Portugal
Top organization / ISP
Vodafone Portugal - Communicacoes Pessoais S.A · Vodafone Portugal
Top geo
Portugal · Porto · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

89.181.253.0/24

Risk Max — LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
89.181.253.0
Broadcast
89.181.253.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.1941 , -8.5151
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-21 02:00 · 2026-02-22 02:00
Top ASN
AS2860 · NOS COMUNICACOES, S.A.
Top organization / ISP
NOS Comunicacoes S.A. · NOS COMUNICACOES S.A.
Top geo
Portugal · Porto · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

148.71.249.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
148.71.249.0
Broadcast
148.71.249.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.1941 , -8.5151
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-18 02:00 · 2026-02-19 02:00
Top ASN
AS12353 · Vodafone Portugal
Top organization / ISP
Vodafone Portugal - Communicacoes Pessoais S.A · Vodafone Portugal
Top geo
Portugal · Porto · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

148.71.142.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
148.71.142.0
Broadcast
148.71.142.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.1941 , -8.5151
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-20 02:00 · 2026-02-21 02:00
Top ASN
AS12353 · Vodafone Portugal
Top organization / ISP
Vodafone Portugal - Communicacoes Pessoais S.A · Vodafone Portugal
Top geo
Portugal · Porto · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

94.132.214.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
94.132.214.0
Broadcast
94.132.214.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.1941 , -8.5151
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 · NOS Comunicacoes S.A.
Top geo
Portugal · Porto · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

94.132.237.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
94.132.237.0
Broadcast
94.132.237.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.1941 , -8.5151
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-18 02:00 · 2026-02-19 02:00
Top ASN
AS2860 · NOS COMUNICACOES, S.A.
Top organization / ISP
TVCABO-Portugal · NOS Comunicacoes S.A.
Top geo
Portugal · Porto · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

148.71.246.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
148.71.246.0
Broadcast
148.71.246.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.1941 , -8.5151
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-16 02:00 · 2026-02-17 02:00
Top ASN
AS12353 · Vodafone Portugal
Top organization / ISP
Vodafone Portugal - Communicacoes Pessoais S.A · Vodafone Portugal
Top geo
Portugal · Porto · Valongo
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →