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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.

20.194.161.0/24

Risk Max 33 LOW Footprint 0.391% Hits 94
Prefix / IP version
/24 · IPv4
Network
20.194.161.0
Broadcast
20.194.161.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
94 hits · 35 errors
First / Last seen
2024-01-24 06:36 · 2024-01-24 17:32
Top ASN
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-01-22 → 2024-01-29 · Updated 2026-01-14 · v2

47.74.46.0/24

Risk Max 27 LOW Footprint 0.391% Hits 182
Prefix / IP version
/24 · IPv4
Network
47.74.46.0
Broadcast
47.74.46.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
182 hits · 176 errors
First / Last seen
2024-11-07 16:45 · 2024-11-07 16:47
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-11-04 → 2024-11-11 · Updated 2026-01-14 · v2

103.125.146.0/24

Risk Max 22 LOW Footprint 14.062% Hits 229
Prefix / IP version
/24 · IPv4
Network
103.125.146.0
Broadcast
103.125.146.255
Observed IPs / Subnet size
36 observed · 256 total
Centroid
35.6893 , 139.68990000000002
Hits / Errors
229 hits · 112 errors
First / Last seen
2024-05-03 19:05 · 2024-05-03 19:11
Top ASN
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-04-29 → 2024-05-06 · Updated 2026-01-14 · v2

8.216.124.0/24

Risk Max 16 LOW Footprint 0.391% Hits 139
Prefix / IP version
/24 · IPv4
Network
8.216.124.0
Broadcast
8.216.124.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
139 hits · 132 errors
First / Last seen
2024-11-05 01:07 · 2024-11-09 10:14
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-11-04 → 2024-11-11 · Updated 2026-01-14 · v2

8.209.204.0/24

Risk Max 16 LOW Footprint 0.391% Hits 92
Prefix / IP version
/24 · IPv4
Network
8.209.204.0
Broadcast
8.209.204.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
92 hits · 88 errors
First / Last seen
2024-12-17 04:32 · 2024-12-17 04:33
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-12-16 → 2024-12-23 · Updated 2026-01-14 · v2

8.216.87.0/24

Risk Max 16 LOW Footprint 0.391% Hits 92
Prefix / IP version
/24 · IPv4
Network
8.216.87.0
Broadcast
8.216.87.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
92 hits · 88 errors
First / Last seen
2024-12-08 03:49 · 2024-12-08 03:51
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-12-02 → 2024-12-09 · Updated 2026-01-14 · v2

52.185.158.0/24

Risk Max 12 LOW Footprint 0.391% Hits 332
Prefix / IP version
/24 · IPv4
Network
52.185.158.0
Broadcast
52.185.158.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
332 hits · 125 errors
First / Last seen
2025-07-22 00:52 · 2025-07-22 00:53
Top ASN
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2

172.207.242.0/24

Risk Max 11 LOW Footprint 0.391% Hits 286
Prefix / IP version
/24 · IPv4
Network
172.207.242.0
Broadcast
172.207.242.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
286 hits · 109 errors
First / Last seen
2025-07-22 01:13 · 2025-07-22 01:14
Top ASN
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2

5.104.81.0/24

Risk Max 10 LOW Footprint 0.391% Hits 505
Prefix / IP version
/24 · IPv4
Network
5.104.81.0
Broadcast
5.104.81.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.694 , 139.754
Hits / Errors
505 hits · 283 errors
First / Last seen
2024-02-23 07:41 · 2024-02-23 07:59
Top ASN
Top organization / ISP
Top geo
Window / Updated
2024-02-19 → 2024-02-26 · Updated 2026-01-14 · v2

20.18.48.0/24

Risk Max 10 LOW Footprint 0.391% Hits 408
Prefix / IP version
/24 · IPv4
Network
20.18.48.0
Broadcast
20.18.48.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
408 hits · 202 errors
First / Last seen
2025-10-16 12:19 · 2025-10-16 12:47
Top ASN
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2025-10-13 → 2025-10-20 · Updated 2026-01-14 · v2

20.18.34.0/24

Risk Max 10 LOW Footprint 0.391% Hits 160
Prefix / IP version
/24 · IPv4
Network
20.18.34.0
Broadcast
20.18.34.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
160 hits · 148 errors
First / Last seen
2023-08-25 09:12 · 2023-08-26 21:22
Top ASN
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2023-08-21 → 2023-08-28 · Updated 2026-01-14 · v2

54.64.68.0/24

Risk Max 10 LOW Footprint 0.391% Hits 135
Prefix / IP version
/24 · IPv4
Network
54.64.68.0
Broadcast
54.64.68.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6895 , 139.692
Hits / Errors
135 hits · 119 errors
First / Last seen
2024-04-25 18:53 · 2024-04-25 18:58
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-04-22 → 2024-04-29 · Updated 2026-01-14 · v2

8.216.90.0/24

Risk Max 9 LOW Footprint 0.781% Hits 48
Prefix / IP version
/24 · IPv4
Network
8.216.90.0
Broadcast
8.216.90.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
48 hits · 44 errors
First / Last seen
2024-09-09 09:57 · 2024-09-14 02:44
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-09-09 → 2024-09-16 · Updated 2026-01-14 · v2

47.74.36.0/24

Risk Max 9 LOW Footprint 0.391% Hits 47
Prefix / IP version
/24 · IPv4
Network
47.74.36.0
Broadcast
47.74.36.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
47 hits · 44 errors
First / Last seen
2024-12-06 22:08 · 2024-12-06 22:10
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-12-02 → 2024-12-09 · Updated 2026-01-14 · v2

8.216.65.0/24

Risk Max 9 LOW Footprint 0.391% Hits 47
Prefix / IP version
/24 · IPv4
Network
8.216.65.0
Broadcast
8.216.65.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
47 hits · 44 errors
First / Last seen
2024-12-02 03:35 · 2024-12-02 03:37
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-12-02 → 2024-12-09 · Updated 2026-01-14 · v2

8.216.89.0/24

Risk Max 9 LOW Footprint 0.391% Hits 47
Prefix / IP version
/24 · IPv4
Network
8.216.89.0
Broadcast
8.216.89.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
47 hits · 44 errors
First / Last seen
2024-11-12 00:49 · 2024-11-12 00:51
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-11-11 → 2024-11-18 · Updated 2026-01-14 · v2

8.216.95.0/24

Risk Max 9 LOW Footprint 0.391% Hits 47
Prefix / IP version
/24 · IPv4
Network
8.216.95.0
Broadcast
8.216.95.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
47 hits · 44 errors
First / Last seen
2024-11-03 22:08 · 2024-11-03 22:09
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-10-28 → 2024-11-04 · Updated 2026-01-14 · v2

4.189.255.0/24

Risk Max 9 LOW Footprint 0.391% Hits 47
Prefix / IP version
/24 · IPv4
Network
4.189.255.0
Broadcast
4.189.255.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
47 hits · 44 errors
First / Last seen
2024-10-15 00:14 · 2024-10-15 00:16
Top ASN
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-10-14 → 2024-10-21 · Updated 2026-01-14 · v2

43.167.244.0/24

Risk Max 9 LOW Footprint 0.391% Hits 47
Prefix / IP version
/24 · IPv4
Network
43.167.244.0
Broadcast
43.167.244.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
47 hits · 43 errors
First / Last seen
2024-09-24 16:38 · 2024-09-24 16:39
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-09-23 → 2024-09-30 · Updated 2026-01-14 · v2

47.74.35.0/24

Risk Max 9 LOW Footprint 0.391% Hits 46
Prefix / IP version
/24 · IPv4
Network
47.74.35.0
Broadcast
47.74.35.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
46 hits · 43 errors
First / Last seen
2024-10-10 13:49 · 2024-10-10 13:51
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-10-07 → 2024-10-14 · Updated 2026-01-14 · v2

8.216.92.0/24

Risk Max 9 LOW Footprint 0.391% Hits 46
Prefix / IP version
/24 · IPv4
Network
8.216.92.0
Broadcast
8.216.92.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
46 hits · 43 errors
First / Last seen
2024-10-06 08:32 · 2024-10-06 08:34
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-09-30 → 2024-10-07 · Updated 2026-01-14 · v2

8.216.85.0/24

Risk Max 9 LOW Footprint 0.391% Hits 46
Prefix / IP version
/24 · IPv4
Network
8.216.85.0
Broadcast
8.216.85.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
46 hits · 43 errors
First / Last seen
2024-09-30 02:02 · 2024-09-30 02:05
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-09-30 → 2024-10-07 · Updated 2026-01-14 · v2

47.74.34.0/24

Risk Max 9 LOW Footprint 0.391% Hits 46
Prefix / IP version
/24 · IPv4
Network
47.74.34.0
Broadcast
47.74.34.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
46 hits · 43 errors
First / Last seen
2024-09-22 16:29 · 2024-09-22 16:31
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-09-16 → 2024-09-23 · Updated 2026-01-14 · v2

8.216.120.0/24

Risk Max 9 LOW Footprint 0.391% Hits 46
Prefix / IP version
/24 · IPv4
Network
8.216.120.0
Broadcast
8.216.120.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
46 hits · 43 errors
First / Last seen
2024-09-17 02:40 · 2024-09-17 02:41
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-09-16 → 2024-09-23 · Updated 2026-01-14 · v2

8.216.121.0/24

Risk Max 9 LOW Footprint 0.391% Hits 46
Prefix / IP version
/24 · IPv4
Network
8.216.121.0
Broadcast
8.216.121.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
46 hits · 43 errors
First / Last seen
2024-09-14 19:14 · 2024-09-14 19:16
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-09-09 → 2024-09-16 · Updated 2026-01-14 · v2

8.216.84.0/24

Risk Max 9 LOW Footprint 0.391% Hits 46
Prefix / IP version
/24 · IPv4
Network
8.216.84.0
Broadcast
8.216.84.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
46 hits · 43 errors
First / Last seen
2024-09-13 10:37 · 2024-09-13 10:38
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-09-09 → 2024-09-16 · Updated 2026-01-14 · v2

47.74.23.0/24

Risk Max 8 LOW Footprint 0.391% Hits 77
Prefix / IP version
/24 · IPv4
Network
47.74.23.0
Broadcast
47.74.23.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
77 hits · 72 errors
First / Last seen
2024-06-12 06:15 · 2024-06-12 06:17
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-06-10 → 2024-06-17 · Updated 2026-01-14 · v2

47.74.52.0/24

Risk Max 8 LOW Footprint 0.391% Hits 45
Prefix / IP version
/24 · IPv4
Network
47.74.52.0
Broadcast
47.74.52.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
45 hits · 42 errors
First / Last seen
2024-06-14 00:43 · 2024-06-14 00:46
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-06-10 → 2024-06-17 · Updated 2026-01-14 · v2

47.245.32.0/24

Risk Max 8 LOW Footprint 0.391% Hits 45
Prefix / IP version
/24 · IPv4
Network
47.245.32.0
Broadcast
47.245.32.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
45 hits · 42 errors
First / Last seen
2024-06-08 01:00 · 2024-06-08 01:02
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-06-03 → 2024-06-10 · Updated 2026-01-14 · v2

8.216.83.0/24

Risk Max 8 LOW Footprint 0.391% Hits 14
Prefix / IP version
/24 · IPv4
Network
8.216.83.0
Broadcast
8.216.83.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
14 hits · 8 errors
First / Last seen
2025-10-05 18:02 · 2025-10-05 18:03
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2

172.207.241.0/24

Risk Max 7 LOW Footprint 0.391% Hits 274
Prefix / IP version
/24 · IPv4
Network
172.207.241.0
Broadcast
172.207.241.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
274 hits · 102 errors
First / Last seen
2025-07-15 10:00 · 2025-07-15 10:03
Top ASN
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2025-07-14 → 2025-07-21 · Updated 2026-01-14 · v2

172.192.49.0/24

Risk Max 7 LOW Footprint 0.391% Hits 237
Prefix / IP version
/24 · IPv4
Network
172.192.49.0
Broadcast
172.192.49.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
237 hits · 74 errors
First / Last seen
2025-07-23 11:06 · 2025-07-23 11:07
Top ASN
AS18747 · IFX Corporation
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2

172.207.228.0/24

Risk Max 7 LOW Footprint 0.391% Hits 226
Prefix / IP version
/24 · IPv4
Network
172.207.228.0
Broadcast
172.207.228.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
226 hits · 65 errors
First / Last seen
2025-07-23 22:55 · 2025-07-23 22:56
Top ASN
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2

126.142.175.0/24

Risk Max 6 LOW Footprint 0.391% Hits 128
Prefix / IP version
/24 · IPv4
Network
126.142.175.0
Broadcast
126.142.175.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6629 , 139.761
Hits / Errors
128 hits · 0 errors
First / Last seen
2024-02-02 04:24 · 2024-02-02 04:25
Top ASN
AS17676 · SoftBank Corp.
Top organization / ISP
Top geo
Window / Updated
2024-01-29 → 2024-02-05 · Updated 2026-01-14 · v2

54.92.86.0/24

Risk Max 6 LOW Footprint 0.391% Hits 128
Prefix / IP version
/24 · IPv4
Network
54.92.86.0
Broadcast
54.92.86.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6895 , 139.692
Hits / Errors
128 hits · 0 errors
First / Last seen
2023-11-13 04:02 · 2023-11-13 04:02
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2023-11-13 → 2023-11-20 · Updated 2026-01-14 · v2

48.218.113.0/24

Risk Max 4 LOW Footprint 0.391% Hits 182
Prefix / IP version
/24 · IPv4
Network
48.218.113.0
Broadcast
48.218.113.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.68 , 139.77
Hits / Errors
182 hits · 90 errors
First / Last seen
2025-10-15 15:49 · 2025-10-15 15:49
Top ASN
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2025-10-13 → 2025-10-20 · Updated 2026-01-14 · v2

139.162.66.0/24

Risk Max 4 LOW Footprint 0.391% Hits 19
Prefix / IP version
/24 · IPv4
Network
139.162.66.0
Broadcast
139.162.66.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
19 hits · 10 errors
First / Last seen
2023-07-15 12:23 · 2023-07-15 12:23
Top ASN
Top organization / ISP
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2023-07-10 → 2023-07-17 · Updated 2026-01-14 · v2

153.122.23.0/24

Risk Max 4 LOW Footprint 0.391% Hits 18
Prefix / IP version
/24 · IPv4
Network
153.122.23.0
Broadcast
153.122.23.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6916 , 139.768
Hits / Errors
18 hits · 0 errors
First / Last seen
2025-09-28 12:52 · 2025-09-28 23:17
Top ASN
Top organization / ISP
Top geo
Window / Updated
2025-09-22 → 2025-09-29 · Updated 2026-01-14 · v2

8.216.86.0/24

Risk Max 4 LOW Footprint 0.391% Hits 6
Prefix / IP version
/24 · IPv4
Network
8.216.86.0
Broadcast
8.216.86.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6893 , 139.6899
Hits / Errors
6 hits · 4 errors
First / Last seen
2024-11-30 19:39 · 2024-11-30 19:39
Top geo
Japan · Tokyo · Tokyo
Window / Updated
2024-11-25 → 2024-12-02 · Updated 2026-01-14 · v2

157.120.33.0/24

Risk Max 4 LOW Footprint 0.391% Hits 5
Prefix / IP version
/24 · IPv4
Network
157.120.33.0
Broadcast
157.120.33.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.6673 , 139.751
Hits / Errors
5 hits · 2 errors
First / Last seen
2025-09-21 04:21 · 2025-09-21 04:21
Top ASN
Top geo
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2
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