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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: Hamamatsu · Clear
Snapshot 2026-03-04 Results 6 Page 1 / 1

59.84.239.0/24

Risk Max — LOW Footprint 0.391% Hits 6
Prefix / IP version
/24 · IPv4
Network
59.84.239.0
Broadcast
59.84.239.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.699 , 137.7337
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-26 02:00
Top ASN
AS10010 · TOKAI Communications Corporation
Top organization / ISP
TOKAI · TOKAI Communications Corporation
Top geo
Japan · Shizuoka · Hamamatsu
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

153.191.5.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
153.191.5.0
Broadcast
153.191.5.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.699 , 137.7337
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS4713 · NTT DOCOMO BUSINESS,Inc.
Top organization / ISP
Open Computer Network · NTT Communications Corporation
Top geo
Japan · Shizuoka · Hamamatsu
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

180.199.217.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
180.199.217.0
Broadcast
180.199.217.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.699 , 137.7337
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS18126 · Chubu Telecommunications Company, Inc.
Top organization / ISP
Chubu Telecommunications Co., Inc. · Chubu Telecommunications Company, Inc.
Top geo
Japan · Shizuoka · Hamamatsu
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

182.21.206.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
182.21.206.0
Broadcast
182.21.206.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.699 , 137.7337
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS10010 · TOKAI Communications Corporation
Top organization / ISP
TOKAI · TOKAI Communications Corporation
Top geo
Japan · Shizuoka · Hamamatsu
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

153.215.238.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
153.215.238.0
Broadcast
153.215.238.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6944 , 137.7216
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS4713 · NTT DOCOMO BUSINESS,Inc.
Top organization / ISP
Open Computer Network · NTT Communications Corporation
Top geo
Japan · Shizuoka · Hamamatsu
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

153.191.66.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
153.191.66.0
Broadcast
153.191.66.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.699 , 137.7337
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS4713 · NTT DOCOMO BUSINESS,Inc.
Top organization / ISP
Open Computer Network · NTT Communications Corporation
Top geo
Japan · Shizuoka · Hamamatsu
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →