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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.

57.129.139.0/24

Risk Max LOW Footprint 1.562% Hits 28
Prefix / IP version
/24 · IPv4
Network
57.129.139.0
Broadcast
57.129.139.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
51.4409 , 0.0985
Hits / Errors
28 hits · 3 errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

54.37.19.0/24

Risk Max LOW Footprint 0.391% Hits 5
Prefix / IP version
/24 · IPv4
Network
54.37.19.0
Broadcast
54.37.19.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.51129999999999 , -0.079212
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-28 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

51.89.167.0/24

Risk Max LOW Footprint 0.391% Hits 5
Prefix / IP version
/24 · IPv4
Network
51.89.167.0
Broadcast
51.89.167.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5081 , -0.1278
Hits / Errors
5 hits · 3 errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

57.129.135.0/24

Risk Max LOW Footprint 0.391% Hits 5
Prefix / IP version
/24 · IPv4
Network
57.129.135.0
Broadcast
57.129.135.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4409 , 0.0985
Hits / Errors
5 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

54.38.214.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
54.38.214.0
Broadcast
54.38.214.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4409 , 0.09849999999999999
Hits / Errors
3 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

51.89.164.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
51.89.164.0
Broadcast
51.89.164.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5081 , -0.1278
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

51.195.232.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
51.195.232.0
Broadcast
51.195.232.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4808 , 0.174675
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

198.244.233.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
198.244.233.0
Broadcast
198.244.233.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5081 , -0.1278
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

51.195.252.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
51.195.252.0
Broadcast
51.195.252.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4808 , 0.174675
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

57.128.168.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
57.128.168.0
Broadcast
57.128.168.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4808 , 0.174675
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS16276 · OVH SAS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2