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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: NSEC - Sistemas Informaticos, S.A. · Clear
Snapshot 2026-03-20 Results — Page 1 / 1

45.156.129.0/24

Risk Max — LOW Footprint 3.516% Hits 18
Prefix / IP version
/24 · IPv4
Network
45.156.129.0
Broadcast
45.156.129.255
Observed IPs / Subnet size
9 observed · 256 total
Centroid
41.8781 , -87.62979999999999
Hits / Errors
18 hits · 2 errors
First / Last seen
2026-03-09 02:00 · 2026-03-13 02:00
Top ASN
AS211680 · NSEC - Sistemas Informaticos, S.A.
Top organization / ISP
Inap CHI · NSEC - Sistemas Informaticos, S.A.
Top geo
United States · Illinois · Chicago
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →

45.156.128.0/24

Risk Max — LOW Footprint 2.344% Hits 8
Prefix / IP version
/24 · IPv4
Network
45.156.128.0
Broadcast
45.156.128.255
Observed IPs / Subnet size
6 observed · 256 total
Centroid
52.3676 , 4.90414
Hits / Errors
8 hits · 0 errors
First / Last seen
2026-03-10 02:00 · 2026-03-13 02:00
Top ASN
AS211680 · NSEC - Sistemas Informaticos, S.A.
Top organization / ISP
Inap AMS · NSEC - Sistemas Informaticos, S.A.
Top geo
The Netherlands · North Holland · Amsterdam
Window / Updated
2026-03-09 → 2026-03-16 · Updated 2026-03-18 · v2
Open report →