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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.

201.253.156.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
201.253.156.0
Broadcast
201.253.156.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-12-17 01:58 · 2025-12-17 07:23
Top ASN
Top geo
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2

181.81.156.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
181.81.156.0
Broadcast
181.81.156.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-09-20 03:22 · 2025-09-20 03:22
Top ASN
Top organization / ISP
Top geo
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2

181.90.205.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
181.90.205.0
Broadcast
181.90.205.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-12-14 23:28 · 2025-12-14 23:28
Top ASN
Top geo
Window / Updated
2025-12-08 → 2025-12-15 · Updated 2026-01-14 · v2

201.253.159.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
201.253.159.0
Broadcast
201.253.159.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-25 23:03 · 2025-11-25 23:03
Top ASN
Top geo
Window / Updated
2025-11-24 → 2025-12-01 · Updated 2026-01-14 · v2

181.81.157.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
181.81.157.0
Broadcast
181.81.157.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-24 02:47 · 2025-11-24 02:47
Top ASN
Top organization / ISP
Top geo
Window / Updated
2025-11-24 → 2025-12-01 · Updated 2026-01-14 · v2

190.185.199.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
190.185.199.0
Broadcast
190.185.199.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-09-22 21:15 · 2025-09-22 21:15
Top ASN
Top geo
Window / Updated
2025-09-22 → 2025-09-29 · Updated 2026-01-14 · v2

181.1.25.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
181.1.25.0
Broadcast
181.1.25.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-09-20 15:12 · 2025-09-20 15:12
Top ASN
Top organization / ISP
Top geo
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2

190.231.122.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
190.231.122.0
Broadcast
190.231.122.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-09-16 15:03 · 2025-09-16 15:03
Top ASN
Top geo
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2

181.1.26.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
181.1.26.0
Broadcast
181.1.26.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-25 10:09 · 2025-08-25 10:09
Top ASN
Top organization / ISP
Top geo
Window / Updated
2025-08-25 → 2025-09-01 · Updated 2026-01-14 · v2

190.231.120.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
190.231.120.0
Broadcast
190.231.120.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.1361 , -64.3231
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-31 22:46 · 2025-07-31 22:46
Top ASN
Top geo
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2