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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: Nantong · Clear
Snapshot 2026-01-26 Results 8 Page 1 / 1

153.101.175.0/24

Risk Max — LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
153.101.175.0
Broadcast
153.101.175.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
32.0264 , 120.8647
Hits / Errors
5 hits · 2 errors
First / Last seen
2024-12-13 16:37 · 2024-12-14 12:01
Top ASN
AS4837 · CHINA UNICOM China169 Backbone
Top organization / ISP
— · China Unicom Jiangsu Province Network
Top geo
China · Jiangsu · Nantong
Window / Updated
2024-12-09 → 2024-12-16 · Updated 2026-01-14 · v2
Open report →

58.221.45.0/24

Risk Max — LOW Footprint 0.391% Hits 13
Prefix / IP version
/24 · IPv4
Network
58.221.45.0
Broadcast
58.221.45.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.0264 , 120.8647
Hits / Errors
13 hits · 0 errors
First / Last seen
2025-10-09 23:49 · 2025-10-09 23:49
Top ASN
AS4134 · CHINANET-BACKBONE
Top organization / ISP
Chinanet JS · Chinanet
Top geo
China · Jiangsu · Nantong
Window / Updated
2025-10-06 → 2025-10-13 · Updated 2026-01-14 · v2
Open report →

153.101.64.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
153.101.64.0
Broadcast
153.101.64.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.0264 , 120.86470000000001
Hits / Errors
3 hits · 1 errors
First / Last seen
2024-09-10 17:27 · 2024-09-10 17:27
Top ASN
AS4837 · CHINA UNICOM China169 Backbone
Top organization / ISP
— · China Unicom Jiangsu Province Network
Top geo
China · Jiangsu · Nantong
Window / Updated
2024-09-09 → 2024-09-16 · Updated 2026-01-14 · v2
Open report →

58.221.37.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
58.221.37.0
Broadcast
58.221.37.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.0264 , 120.8647
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-08-01 13:57 · 2025-08-01 13:58
Top ASN
AS4134 · CHINANET-BACKBONE
Top organization / ISP
Chinanet JS · Chinanet
Top geo
China · Jiangsu · Nantong
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

49.67.38.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
49.67.38.0
Broadcast
49.67.38.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.0264 , 120.8647
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-06-29 14:57 · 2025-06-29 14:57
Top ASN
AS4134 · CHINANET-BACKBONE
Top organization / ISP
Chinanet JS · Chinanet
Top geo
China · Jiangsu · Nantong
Window / Updated
2025-06-23 → 2025-06-30 · Updated 2026-01-14 · v2
Open report →

153.101.148.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
153.101.148.0
Broadcast
153.101.148.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.0264 , 120.8647
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-10-12 05:19 · 2025-10-12 05:19
Top ASN
AS4837 · CHINA UNICOM China169 Backbone
Top organization / ISP
— · China Unicom Jiangsu Province Network
Top geo
China · Jiangsu · Nantong
Window / Updated
2025-10-06 → 2025-10-13 · Updated 2026-01-14 · v2
Open report →

183.212.87.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
183.212.87.0
Broadcast
183.212.87.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.0264 , 120.8647
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-06-29 10:47 · 2025-06-29 10:47
Top ASN
AS56046 · China Mobile communications corporation
Top organization / ISP
China Mobile Communications Corporation · China Mobile Communications Corporation
Top geo
China · Jiangsu · Nantong
Window / Updated
2025-06-23 → 2025-06-30 · Updated 2026-01-14 · v2
Open report →

61.147.227.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
61.147.227.0
Broadcast
61.147.227.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.0607 , 118.763
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-04-27 08:53 · 2025-04-27 08:53
Top ASN
AS131325 · CHINATELECOM JIANGSU province NANTONG MAN network
Top organization / ISP
Chinanet JS · CHINATELECOM JIANGSU province NANTONG MAN network
Top geo
China · Jiangsu · Nanjing
Window / Updated
2025-04-21 → 2025-04-28 · Updated 2026-01-14 · v2
Open report →