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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.

20.237.203.0/24

Risk Max LOW Footprint 0.391% Hits 96
Prefix / IP version
/24 · IPv4
Network
20.237.203.0
Broadcast
20.237.203.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.783 , -122.41699999999999
Hits / Errors
96 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

104.45.223.0/24

Risk Max LOW Footprint 0.391% Hits 96
Prefix / IP version
/24 · IPv4
Network
104.45.223.0
Broadcast
104.45.223.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.783 , -122.41699999999999
Hits / Errors
96 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.253.149.0/24

Risk Max LOW Footprint 0.391% Hits 95
Prefix / IP version
/24 · IPv4
Network
20.253.149.0
Broadcast
20.253.149.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.783 , -122.417
Hits / Errors
95 hits · 5 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

104.42.153.0/24

Risk Max LOW Footprint 0.391% Hits 85
Prefix / IP version
/24 · IPv4
Network
104.42.153.0
Broadcast
104.42.153.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.783 , -122.417
Hits / Errors
85 hits · 5 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.189.202.0/24

Risk Max LOW Footprint 0.391% Hits 70
Prefix / IP version
/24 · IPv4
Network
20.189.202.0
Broadcast
20.189.202.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6939 , 135.5022
Hits / Errors
70 hits · 70 errors
First / Last seen
2026-02-22 02:00 · 2026-02-24 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.220.144.0/24

Risk Max LOW Footprint 0.391% Hits 50
Prefix / IP version
/24 · IPv4
Network
20.220.144.0
Broadcast
20.220.144.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.653 , -79.383
Hits / Errors
50 hits · 25 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

13.74.146.0/24

Risk Max LOW Footprint 0.391% Hits 42
Prefix / IP version
/24 · IPv4
Network
13.74.146.0
Broadcast
13.74.146.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.34779999999999 , -6.2597
Hits / Errors
42 hits · 21 errors
First / Last seen
2026-02-26 02:00 · 2026-03-01 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.187.125.0/24

Risk Max LOW Footprint 0.391% Hits 38
Prefix / IP version
/24 · IPv4
Network
20.187.125.0
Broadcast
20.187.125.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
22.267 , 114.188
Hits / Errors
38 hits · 19 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.211.1.0/24

Risk Max LOW Footprint 0.391% Hits 35
Prefix / IP version
/24 · IPv4
Network
20.211.1.0
Broadcast
20.211.1.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-33.86 , 151.2094
Hits / Errors
35 hits · 35 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.53.240.0/24

Risk Max LOW Footprint 0.391% Hits 35
Prefix / IP version
/24 · IPv4
Network
20.53.240.0
Broadcast
20.53.240.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-33.86 , 151.2094
Hits / Errors
35 hits · 35 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.78.146.0/24

Risk Max LOW Footprint 0.391% Hits 35
Prefix / IP version
/24 · IPv4
Network
20.78.146.0
Broadcast
20.78.146.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6939 , 135.5022
Hits / Errors
35 hits · 35 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.220.221.0/24

Risk Max LOW Footprint 0.391% Hits 32
Prefix / IP version
/24 · IPv4
Network
20.220.221.0
Broadcast
20.220.221.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.653 , -79.383
Hits / Errors
32 hits · 16 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.191.45.0/24

Risk Max LOW Footprint 0.391% Hits 30
Prefix / IP version
/24 · IPv4
Network
20.191.45.0
Broadcast
20.191.45.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.3478 , -6.2597
Hits / Errors
30 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-03-02 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

40.88.21.0/24

Risk Max LOW Footprint 0.391% Hits 26
Prefix / IP version
/24 · IPv4
Network
40.88.21.0
Broadcast
40.88.21.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.677696 , -78.37471
Hits / Errors
26 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

4.204.192.0/24

Risk Max LOW Footprint 0.391% Hits 26
Prefix / IP version
/24 · IPv4
Network
4.204.192.0
Broadcast
4.204.192.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.653000000000006 , -79.38300000000001
Hits / Errors
26 hits · 13 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

98.66.160.0/24

Risk Max LOW Footprint 0.391% Hits 20
Prefix / IP version
/24 · IPv4
Network
98.66.160.0
Broadcast
98.66.160.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.856567 , 2.347322
Hits / Errors
20 hits · 17 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

52.191.41.0/24

Risk Max LOW Footprint 0.391% Hits 13
Prefix / IP version
/24 · IPv4
Network
52.191.41.0
Broadcast
52.191.41.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.677696 , -78.37471
Hits / Errors
13 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-28 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

4.205.37.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
4.205.37.0
Broadcast
4.205.37.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.653 , -79.383
Hits / Errors
12 hits · 6 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

158.158.33.0/24

Risk Max LOW Footprint 0.391% Hits 10
Prefix / IP version
/24 · IPv4
Network
158.158.33.0
Broadcast
158.158.33.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.4203 , -3.7057739999999995
Hits / Errors
10 hits · 5 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.111.44.0/24

Risk Max LOW Footprint 0.391% Hits 10
Prefix / IP version
/24 · IPv4
Network
20.111.44.0
Broadcast
20.111.44.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.856567 , 2.347322
Hits / Errors
10 hits · 5 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

74.248.132.0/24

Risk Max LOW Footprint 0.391% Hits 10
Prefix / IP version
/24 · IPv4
Network
74.248.132.0
Broadcast
74.248.132.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
52.23537 , 21.009485
Hits / Errors
10 hits · 5 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

40.81.230.0/24

Risk Max LOW Footprint 0.391% Hits 6
Prefix / IP version
/24 · IPv4
Network
40.81.230.0
Broadcast
40.81.230.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
18.5144 , 73.864235
Hits / Errors
6 hits · 3 errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.12.141.0/24

Risk Max LOW Footprint 0.391% Hits 5
Prefix / IP version
/24 · IPv4
Network
20.12.141.0
Broadcast
20.12.141.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.5908 , -93.6208
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-28 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.220.165.0/24

Risk Max LOW Footprint 0.391% Hits 5
Prefix / IP version
/24 · IPv4
Network
20.220.165.0
Broadcast
20.220.165.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.653 , -79.383
Hits / Errors
5 hits · 2 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

48.217.87.0/24

Risk Max LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
48.217.87.0
Broadcast
48.217.87.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.677696 , -78.37471
Hits / Errors
4 hits · 4 errors
First / Last seen
2026-02-24 02:00 · 2026-03-02 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.223.198.0/24

Risk Max LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
20.223.198.0
Broadcast
20.223.198.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.3478 , -6.2597
Hits / Errors
4 hits · 2 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

51.8.71.0/24

Risk Max LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
51.8.71.0
Broadcast
51.8.71.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.677696 , -78.37471
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-28 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.220.213.0/24

Risk Max LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
20.220.213.0
Broadcast
20.220.213.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.653 , -79.383
Hits / Errors
4 hits · 2 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

57.159.30.0/24

Risk Max LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
57.159.30.0
Broadcast
57.159.30.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
18.5144 , 73.864235
Hits / Errors
4 hits · 2 errors
First / Last seen
2026-02-22 02:00 · 2026-02-25 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.166.38.0/24

Risk Max LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
20.166.38.0
Broadcast
20.166.38.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.3478 , -6.2597
Hits / Errors
4 hits · 2 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

74.249.41.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
74.249.41.0
Broadcast
74.249.41.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.677696 , -78.37471
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

172.207.28.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
172.207.28.0
Broadcast
172.207.28.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

4.216.162.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
4.216.162.0
Broadcast
4.216.162.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

40.119.24.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
40.119.24.0
Broadcast
40.119.24.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
29.416700000000002 , -98.5
Hits / Errors
3 hits · 3 errors
First / Last seen
2026-02-26 02:00 · 2026-02-28 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.169.85.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
20.169.85.0
Broadcast
20.169.85.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.448376 , -112.07403600000002
Hits / Errors
3 hits · 3 errors
First / Last seen
2026-02-22 02:00 · 2026-02-25 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

135.232.232.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
135.232.232.0
Broadcast
135.232.232.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.8819 , -87.6278
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.55.229.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
20.55.229.0
Broadcast
20.55.229.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.677696 , -78.37471
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

57.151.128.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
57.151.128.0
Broadcast
57.151.128.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.13925 , -104.816154
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.193.146.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
20.193.146.0
Broadcast
20.193.146.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
18.5144 , 73.864235
Hits / Errors
2 hits · 1 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

20.98.18.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
20.98.18.0
Broadcast
20.98.18.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.8819 , -87.6278
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2