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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.

156.227.233.0/24

Risk Max 9 LOW Footprint 0.391% Hits 47
Prefix / IP version
/24 · IPv4
Network
156.227.233.0
Broadcast
156.227.233.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6937 , 135.5022
Hits / Errors
47 hits · 43 errors
First / Last seen
2024-09-29 22:00 · 2024-09-29 22:03
Top ASN
AS138152 · YISU CLOUD LTD
Top organization / ISP
Top geo
Window / Updated
2024-09-23 → 2024-09-30 · Updated 2026-01-14 · v2

183.90.183.0/24

Risk Max 6 LOW Footprint 0.391% Hits 6
Prefix / IP version
/24 · IPv4
Network
183.90.183.0
Broadcast
183.90.183.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6778 , 135.503
Hits / Errors
6 hits · 0 errors
First / Last seen
2025-02-17 17:36 · 2025-02-17 17:36
Top ASN
AS37907 · DigiRock, Inc.
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-02-17 → 2025-02-24 · Updated 2026-01-14 · v2

20.27.198.0/24

Risk Max 3 LOW Footprint 0.391% Hits 8
Prefix / IP version
/24 · IPv4
Network
20.27.198.0
Broadcast
20.27.198.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6939 , 135.5022
Hits / Errors
8 hits · 3 errors
First / Last seen
2023-12-13 03:15 · 2023-12-13 17:23
Top ASN
Top geo
Window / Updated
2023-12-11 → 2023-12-18 · Updated 2026-01-14 · v2

168.138.41.0/24

Risk Max 3 LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
168.138.41.0
Broadcast
168.138.41.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.8225 , 135.4711
Hits / Errors
4 hits · 3 errors
First / Last seen
2025-09-12 19:03 · 2025-09-12 19:04
Top ASN
AS31898 · Oracle Corporation
Top geo
Window / Updated
2025-09-08 → 2025-09-15 · Updated 2026-01-14 · v2

112.78.125.0/24

Risk Max 2 LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
112.78.125.0
Broadcast
112.78.125.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.706 , 135.493
Hits / Errors
4 hits · 2 errors
First / Last seen
2024-05-31 00:55 · 2024-05-31 00:55
Top ASN
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2024-05-27 → 2024-06-03 · Updated 2026-01-14 · v2

59.132.149.0/24

Risk Max 1 LOW Footprint 0.391% Hits 156
Prefix / IP version
/24 · IPv4
Network
59.132.149.0
Broadcast
59.132.149.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6967 , 135.5154
Hits / Errors
156 hits · 26 errors
First / Last seen
2025-02-21 08:47 · 2025-02-21 08:49
Top ASN
AS2516 · KDDI CORPORATION
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-02-17 → 2025-02-24 · Updated 2026-01-14 · v2

20.78.177.0/24

Risk Max 1 LOW Footprint 0.391% Hits 114
Prefix / IP version
/24 · IPv4
Network
20.78.177.0
Broadcast
20.78.177.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6939 , 135.5022
Hits / Errors
114 hits · 52 errors
First / Last seen
2025-12-17 00:29 · 2025-12-17 18:38
Top ASN
Top geo
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2

15.152.23.0/24

Risk Max 1 LOW Footprint 0.391% Hits 22
Prefix / IP version
/24 · IPv4
Network
15.152.23.0
Broadcast
15.152.23.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6937 , 135.502
Hits / Errors
22 hits · 1 errors
First / Last seen
2024-01-14 03:34 · 2024-01-14 03:34
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Window / Updated
2024-01-08 → 2024-01-15 · Updated 2026-01-14 · v2

133.18.215.0/24

Risk Max 1 LOW Footprint 0.391% Hits 8
Prefix / IP version
/24 · IPv4
Network
133.18.215.0
Broadcast
133.18.215.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.693 , 135.5005
Hits / Errors
8 hits · 4 errors
First / Last seen
2024-12-23 01:07 · 2024-12-23 01:07
Top ASN
AS24282 · KAGOYA JAPAN Inc.
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2024-12-23 → 2024-12-30 · Updated 2026-01-14 · v2

20.210.155.0/24

Risk Max 1 LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
20.210.155.0
Broadcast
20.210.155.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6939 , 135.5022
Hits / Errors
4 hits · 0 errors
First / Last seen
2023-08-02 02:31 · 2023-08-02 02:31
Top ASN
Top geo
Window / Updated
2023-07-31 → 2023-08-07 · Updated 2026-01-14 · v2

211.1.233.0/24

Risk Max 1 LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
211.1.233.0
Broadcast
211.1.233.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6937 , 135.502
Hits / Errors
2 hits · 1 errors
First / Last seen
2023-08-09 19:10 · 2023-08-09 19:10
Top ASN
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2023-08-07 → 2023-08-14 · Updated 2026-01-14 · v2

168.138.54.0/24

Risk Max 1 LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
168.138.54.0
Broadcast
168.138.54.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.8225 , 135.4711
Hits / Errors
1 hits · 0 errors
First / Last seen
2023-08-05 05:19 · 2023-08-05 05:19
Top ASN
AS31898 · Oracle Corporation
Top geo
Window / Updated
2023-07-31 → 2023-08-07 · Updated 2026-01-14 · v2

118.2.97.0/24

Risk Max 1 LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
118.2.97.0
Broadcast
118.2.97.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6937 , 135.502
Hits / Errors
1 hits · 0 errors
First / Last seen
2023-07-17 04:07 · 2023-07-17 04:07
Top ASN
Top geo
Japan · Osaka · Osaka
Window / Updated
2023-07-17 → 2023-07-24 · Updated 2026-01-14 · v2

128.53.164.0/24

Risk Max 1 LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
128.53.164.0
Broadcast
128.53.164.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6967 , 135.5154
Hits / Errors
1 hits · 0 errors
First / Last seen
2023-06-27 06:31 · 2023-06-27 06:31
Top ASN
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2023-06-26 → 2023-07-03 · Updated 2026-01-14 · v2

133.106.50.0/24

Risk Max LOW Footprint 3.906% Hits 99
Prefix / IP version
/24 · IPv4
Network
133.106.50.0
Broadcast
133.106.50.255
Observed IPs / Subnet size
10 observed · 256 total
Centroid
34.740385714285715 , 135.51161038961038
Hits / Errors
99 hits · 7 errors
First / Last seen
2025-01-13 18:34 · 2025-01-14 18:28
Top ASN
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-01-13 → 2025-01-20 · Updated 2026-01-14 · v2

212.32.76.0/24

Risk Max LOW Footprint 1.172% Hits 18
Prefix / IP version
/24 · IPv4
Network
212.32.76.0
Broadcast
212.32.76.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
34.693 , 135.5005
Hits / Errors
18 hits · 0 errors
First / Last seen
2025-10-10 06:09 · 2025-10-11 09:01
Top ASN
AS137409 · GSL Networks Pty LTD
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-10-06 → 2025-10-13 · Updated 2026-01-14 · v2

138.91.30.0/24

Risk Max LOW Footprint 1.172% Hits 8
Prefix / IP version
/24 · IPv4
Network
138.91.30.0
Broadcast
138.91.30.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
34.6939 , 135.5022
Hits / Errors
8 hits · 3 errors
First / Last seen
2025-12-17 07:15 · 2025-12-17 12:43
Top ASN
Top geo
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2

203.25.124.0/24

Risk Max LOW Footprint 1.172% Hits 8
Prefix / IP version
/24 · IPv4
Network
203.25.124.0
Broadcast
203.25.124.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
34.693 , 135.5005
Hits / Errors
8 hits · 2 errors
First / Last seen
2025-10-10 06:09 · 2025-10-11 09:01
Top ASN
AS137409 · GSL Networks Pty LTD
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-10-06 → 2025-10-13 · Updated 2026-01-14 · v2

20.27.94.0/24

Risk Max LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
20.27.94.0
Broadcast
20.27.94.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
34.6939 , 135.5022
Hits / Errors
4 hits · 2 errors
First / Last seen
2025-12-17 11:08 · 2025-12-17 20:05
Top ASN
Top geo
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2

59.132.141.0/24

Risk Max LOW Footprint 0.391% Hits 168
Prefix / IP version
/24 · IPv4
Network
59.132.141.0
Broadcast
59.132.141.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6967 , 135.5154
Hits / Errors
168 hits · 83 errors
First / Last seen
2025-02-22 18:42 · 2025-02-22 19:58
Top ASN
AS2516 · KDDI CORPORATION
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-02-17 → 2025-02-24 · Updated 2026-01-14 · v2

133.106.192.0/24

Risk Max LOW Footprint 0.391% Hits 66
Prefix / IP version
/24 · IPv4
Network
133.106.192.0
Broadcast
133.106.192.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6967 , 135.5154
Hits / Errors
66 hits · 4 errors
First / Last seen
2025-07-31 16:43 · 2025-07-31 16:45
Top ASN
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

133.106.206.0/24

Risk Max LOW Footprint 0.391% Hits 33
Prefix / IP version
/24 · IPv4
Network
133.106.206.0
Broadcast
133.106.206.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6892 , 135.4899
Hits / Errors
33 hits · 2 errors
First / Last seen
2024-11-27 14:49 · 2024-11-27 14:54
Top ASN
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2024-11-25 → 2024-12-02 · Updated 2026-01-14 · v2

106.146.79.0/24

Risk Max LOW Footprint 0.391% Hits 32
Prefix / IP version
/24 · IPv4
Network
106.146.79.0
Broadcast
106.146.79.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6802 , 135.5029
Hits / Errors
32 hits · 2 errors
First / Last seen
2025-08-02 11:00 · 2025-08-02 11:00
Top ASN
AS2516 · KDDI CORPORATION
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

134.238.3.0/24

Risk Max LOW Footprint 0.391% Hits 31
Prefix / IP version
/24 · IPv4
Network
134.238.3.0
Broadcast
134.238.3.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.693 , 135.5005
Hits / Errors
31 hits · 0 errors
First / Last seen
2025-05-09 09:55 · 2025-05-09 09:57
Top ASN
AS394089 · Google LLC
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

113.37.174.0/24

Risk Max LOW Footprint 0.391% Hits 28
Prefix / IP version
/24 · IPv4
Network
113.37.174.0
Broadcast
113.37.174.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.7795 , 135.4726
Hits / Errors
28 hits · 0 errors
First / Last seen
2025-05-20 16:26 · 2025-05-21 00:00
Top ASN
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

113.37.133.0/24

Risk Max LOW Footprint 0.391% Hits 23
Prefix / IP version
/24 · IPv4
Network
113.37.133.0
Broadcast
113.37.133.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6967 , 135.5154
Hits / Errors
23 hits · 0 errors
First / Last seen
2025-04-08 00:54 · 2025-04-08 00:58
Top ASN
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-04-07 → 2025-04-14 · Updated 2026-01-14 · v2

106.146.66.0/24

Risk Max LOW Footprint 0.391% Hits 22
Prefix / IP version
/24 · IPv4
Network
106.146.66.0
Broadcast
106.146.66.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6967 , 135.5154
Hits / Errors
22 hits · 0 errors
First / Last seen
2025-04-25 08:21 · 2025-04-25 08:23
Top ASN
AS2516 · KDDI CORPORATION
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-04-21 → 2025-04-28 · Updated 2026-01-14 · v2

121.118.95.0/24

Risk Max LOW Footprint 0.391% Hits 22
Prefix / IP version
/24 · IPv4
Network
121.118.95.0
Broadcast
121.118.95.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.7904 , 135.4987
Hits / Errors
22 hits · 0 errors
First / Last seen
2025-04-23 14:43 · 2025-04-23 14:43
Top ASN
Top geo
Window / Updated
2025-04-21 → 2025-04-28 · Updated 2026-01-14 · v2

133.106.210.0/24

Risk Max LOW Footprint 0.391% Hits 20
Prefix / IP version
/24 · IPv4
Network
133.106.210.0
Broadcast
133.106.210.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.5822 , 135.467
Hits / Errors
20 hits · 1 errors
First / Last seen
2025-01-18 08:24 · 2025-01-18 09:18
Top ASN
Top organization / ISP
Top geo
Japan · Osaka · Sakai
Window / Updated
2025-01-13 → 2025-01-20 · Updated 2026-01-14 · v2

153.252.139.0/24

Risk Max LOW Footprint 0.391% Hits 18
Prefix / IP version
/24 · IPv4
Network
153.252.139.0
Broadcast
153.252.139.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.8631 , 135.6204
Hits / Errors
18 hits · 0 errors
First / Last seen
2025-04-02 23:35 · 2025-04-02 23:36
Top ASN
Top geo
Window / Updated
2025-03-31 → 2025-04-07 · Updated 2026-01-14 · v2

106.184.139.0/24

Risk Max LOW Footprint 0.391% Hits 17
Prefix / IP version
/24 · IPv4
Network
106.184.139.0
Broadcast
106.184.139.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.7027 , 135.498
Hits / Errors
17 hits · 1 errors
First / Last seen
2025-01-21 18:18 · 2025-01-22 00:00
Top ASN
AS2516 · KDDI CORPORATION
Top organization / ISP
Top geo
Japan · Osaka · Umeda
Window / Updated
2025-01-20 → 2025-01-27 · Updated 2026-01-14 · v2

153.145.157.0/24

Risk Max LOW Footprint 0.391% Hits 16
Prefix / IP version
/24 · IPv4
Network
153.145.157.0
Broadcast
153.145.157.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6937 , 135.502
Hits / Errors
16 hits · 0 errors
First / Last seen
2025-07-31 17:38 · 2025-07-31 17:48
Top ASN
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

153.125.138.0/24

Risk Max LOW Footprint 0.391% Hits 16
Prefix / IP version
/24 · IPv4
Network
153.125.138.0
Broadcast
153.125.138.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.706 , 135.493
Hits / Errors
16 hits · 0 errors
First / Last seen
2025-07-24 07:20 · 2025-07-24 08:44
Top ASN
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2

106.146.78.0/24

Risk Max LOW Footprint 0.391% Hits 15
Prefix / IP version
/24 · IPv4
Network
106.146.78.0
Broadcast
106.146.78.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6802 , 135.5029
Hits / Errors
15 hits · 0 errors
First / Last seen
2025-08-01 02:31 · 2025-08-01 02:33
Top ASN
AS2516 · KDDI CORPORATION
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

140.82.207.0/24

Risk Max LOW Footprint 0.391% Hits 14
Prefix / IP version
/24 · IPv4
Network
140.82.207.0
Broadcast
140.82.207.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.693 , 135.5005
Hits / Errors
14 hits · 0 errors
First / Last seen
2025-03-26 09:00 · 2025-03-26 09:00
Top ASN
AS13150 · CATO NETWORKS LTD
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2025-03-24 → 2025-03-31 · Updated 2026-01-14 · v2

117.109.223.0/24

Risk Max LOW Footprint 0.391% Hits 14
Prefix / IP version
/24 · IPv4
Network
117.109.223.0
Broadcast
117.109.223.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.4736 , 135.3757
Hits / Errors
14 hits · 1 errors
First / Last seen
2024-09-23 14:03 · 2024-09-23 14:06
Top geo
Window / Updated
2024-09-23 → 2024-09-30 · Updated 2026-01-14 · v2

160.249.23.0/24

Risk Max LOW Footprint 0.391% Hits 13
Prefix / IP version
/24 · IPv4
Network
160.249.23.0
Broadcast
160.249.23.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6802 , 135.5029
Hits / Errors
13 hits · 1 errors
First / Last seen
2024-12-18 04:34 · 2024-12-18 04:49
Top ASN
AS9605 · NTT DOCOMO, INC.
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2024-12-16 → 2024-12-23 · Updated 2026-01-14 · v2

133.106.252.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
133.106.252.0
Broadcast
133.106.252.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.5667 , 135.55
Hits / Errors
12 hits · 1 errors
First / Last seen
2024-11-22 13:34 · 2024-11-22 13:34
Top ASN
Top organization / ISP
Top geo
Window / Updated
2024-11-18 → 2024-11-25 · Updated 2026-01-14 · v2

106.146.65.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
106.146.65.0
Broadcast
106.146.65.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6967 , 135.5154
Hits / Errors
12 hits · 1 errors
First / Last seen
2024-10-08 14:02 · 2024-10-08 14:02
Top ASN
AS2516 · KDDI CORPORATION
Top organization / ISP
Top geo
Japan · Osaka · Osaka
Window / Updated
2024-10-07 → 2024-10-14 · Updated 2026-01-14 · v2

153.239.194.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
153.239.194.0
Broadcast
153.239.194.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.7115 , 135.5544
Hits / Errors
12 hits · 0 errors
First / Last seen
2024-09-11 16:41 · 2024-09-11 16:41
Top ASN
Top geo
Japan · Osaka · Noe
Window / Updated
2024-09-09 → 2024-09-16 · Updated 2026-01-14 · v2
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