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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: Bupyeong-gu · Clear
Snapshot 2026-02-01 Results 5 Page 1 / 1

121.142.166.0/24

Risk Max 1 LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
121.142.166.0
Broadcast
121.142.166.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.5087 , 126.7219
Hits / Errors
1 hits · 0 errors
First / Last seen
2023-07-17 06:54 · 2023-07-17 06:54
Top ASN
AS4766 · Korea Telecom
Top organization / ISP
— · Korea Telecom
Top geo
South Korea · Incheon · Bupyeong-gu
Window / Updated
2023-07-17 → 2023-07-24 · Updated 2026-01-14 · v2
Open report →

118.37.197.0/24

Risk Max 1 LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
118.37.197.0
Broadcast
118.37.197.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.5087 , 126.7219
Hits / Errors
1 hits · 0 errors
First / Last seen
2023-06-24 10:17 · 2023-06-24 10:17
Top ASN
AS4766 · Korea Telecom
Top organization / ISP
Kornet · Korea Telecom
Top geo
South Korea · Incheon · Bupyeong-gu
Window / Updated
2023-06-19 → 2023-06-26 · Updated 2026-01-14 · v2
Open report →

121.173.69.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
121.173.69.0
Broadcast
121.173.69.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.5087 , 126.7219
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-24 15:07 · 2025-08-24 15:07
Top ASN
AS4766 · Korea Telecom
Top organization / ISP
— · Korea Telecom
Top geo
South Korea · Incheon · Bupyeong-gu
Window / Updated
2025-08-18 → 2025-08-25 · Updated 2026-01-14 · v2
Open report →

112.221.143.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
112.221.143.0
Broadcast
112.221.143.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.5087 , 126.7219
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-02-22 00:43 · 2025-02-22 00:43
Top ASN
AS3786 · LG DACOM Corporation
Top organization / ISP
Boranet · LG DACOM Corporation
Top geo
South Korea · Incheon · Bupyeong-gu
Window / Updated
2025-02-17 → 2025-02-24 · Updated 2026-01-14 · v2
Open report →

211.173.186.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
211.173.186.0
Broadcast
211.173.186.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4902 , 126.7151
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-01-28 13:55 · 2025-01-28 13:55
Top ASN
AS18313 · LG HelloVision Corp.
Top organization / ISP
CJ-CABLENET · LG HelloVision Corp.
Top geo
South Korea · Incheon · Bupyeong-gu
Window / Updated
2025-01-27 → 2025-02-03 · Updated 2026-01-14 · v2
Open report →