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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 2026-03-09 Results 5 Page 1 / 1

45.156.129.0/24

Risk Max — LOW Footprint 3.906% Hits 14
Prefix / IP version
/24 · IPv4
Network
45.156.129.0
Broadcast
45.156.129.255
Observed IPs / Subnet size
10 observed · 256 total
Centroid
41.87810000000001 , -87.62980000000002
Hits / Errors
14 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-03-01 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
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.105.209.0/24

Risk Max — LOW Footprint 2.344% Hits 12
Prefix / IP version
/24 · IPv4
Network
109.105.209.0
Broadcast
109.105.209.255
Observed IPs / Subnet size
6 observed · 256 total
Centroid
34.0549 , -118.24299999999998
Hits / Errors
12 hits · 4 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS21859 · Zenlayer Inc
Top organization / ISP
NSEC - Sistemas Informaticos, S.A · Zenlayer Inc
Top geo
United States · California · Los Angeles
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.105.210.0/24

Risk Max — LOW Footprint 2.344% Hits 9
Prefix / IP version
/24 · IPv4
Network
109.105.210.0
Broadcast
109.105.210.255
Observed IPs / Subnet size
6 observed · 256 total
Centroid
32.7767 , -96.797
Hits / Errors
9 hits · 2 errors
First / Last seen
2026-02-26 02:00 · 2026-03-02 02:00
Top ASN
AS21859 · Zenlayer Inc
Top organization / ISP
NSEC - Sistemas Informaticos, S.A · Zenlayer Inc
Top geo
United States · Texas · Dallas
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · 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
52.367599999999996 , 4.904139999999999
Hits / Errors
8 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-03-01 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
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

185.117.225.0/24

Risk Max — LOW Footprint 0.391% Hits 6
Prefix / IP version
/24 · IPv4
Network
185.117.225.0
Broadcast
185.117.225.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.9072 , -77.0369
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
NSEC - Sistemas Informaticos, S.A · Amazon.com, Inc.
Top geo
United States · District of Columbia · Washington
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →