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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: Geumcheon-gu · Clear
Snapshot 2026-01-31 Results 7 Page 1 / 1

183.101.159.0/24

Risk Max 1 LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
183.101.159.0
Broadcast
183.101.159.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4784 , 126.8982
Hits / Errors
1 hits · 0 errors
First / Last seen
2023-07-17 01:31 · 2023-07-17 01:31
Top ASN
AS4766 · Korea Telecom
Top organization / ISP
— · Korea Telecom
Top geo
South Korea · Seoul · Geumcheon-gu
Window / Updated
2023-07-17 → 2023-07-24 · Updated 2026-01-14 · v2
Open report →

121.140.246.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
121.140.246.0
Broadcast
121.140.246.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4784 , 126.8982
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-11 16:38 · 2025-05-11 16:38
Top ASN
AS4766 · Korea Telecom
Top organization / ISP
KORNET · Korea Telecom
Top geo
South Korea · Seoul · Geumcheon-gu
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

221.150.13.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
221.150.13.0
Broadcast
221.150.13.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4784 , 126.8982
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-10 06:21 · 2025-05-10 06:21
Top ASN
AS4766 · Korea Telecom
Top organization / ISP
Korea Telecom · Korea Telecom
Top geo
South Korea · Seoul · Geumcheon-gu
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

183.101.147.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
183.101.147.0
Broadcast
183.101.147.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4784 , 126.8982
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-01-07 14:00 · 2025-01-07 14:00
Top ASN
AS4766 · Korea Telecom
Top organization / ISP
— · Korea Telecom
Top geo
South Korea · Seoul · Geumcheon-gu
Window / Updated
2025-01-06 → 2025-01-13 · Updated 2026-01-14 · v2
Open report →

121.140.194.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
121.140.194.0
Broadcast
121.140.194.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4565 , 126.8919
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-01-07 11:17 · 2025-01-07 11:17
Top ASN
AS4766 · Korea Telecom
Top organization / ISP
— · Korea Telecom
Top geo
South Korea · Seoul · Geumcheon-gu
Window / Updated
2025-01-06 → 2025-01-13 · Updated 2026-01-14 · v2
Open report →

121.140.176.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
121.140.176.0
Broadcast
121.140.176.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4784 , 126.8982
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-01-06 07:08 · 2025-01-06 07:08
Top ASN
AS4766 · Korea Telecom
Top organization / ISP
Kornet · Korea Telecom
Top geo
South Korea · Seoul · Geumcheon-gu
Window / Updated
2025-01-06 → 2025-01-13 · Updated 2026-01-14 · v2
Open report →

27.124.8.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
27.124.8.0
Broadcast
27.124.8.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4784 , 126.8982
Hits / Errors
1 hits · 0 errors
First / Last seen
2024-04-20 05:33 · 2024-04-20 05:33
Top ASN
AS64050 · BGP Network Limited
Top organization / ISP
CTG Server Ltd. · CTG Server Ltd
Top geo
South Korea · Seoul · Geumcheon-gu
Window / Updated
2024-04-15 → 2024-04-22 · Updated 2026-01-14 · v2
Open report →