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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: inetnum · Clear
Snapshot 2026-01-23 Results 7 Page 1 / 1

89.117.21.0/24

Risk Max 7 LOW Footprint 0.391% Hits 292
Prefix / IP version
/24 · IPv4
Network
89.117.21.0
Broadcast
89.117.21.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.3066 , -122.26189999999998
Hits / Errors
292 hits · 0 errors
First / Last seen
2025-04-03 10:55 · 2025-04-03 11:04
Top ASN
AS40021 · Contabo Inc.
Top organization / ISP
Lrtc Inetnum Rent · Contabo Inc.
Top geo
United States · Washington · Seattle
Window / Updated
2025-03-31 → 2025-04-07 · Updated 2026-01-14 · v2
Open report →

89.117.16.0/24

Risk Max 1 LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
89.117.16.0
Broadcast
89.117.16.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.3066 , -122.2619
Hits / Errors
4 hits · 2 errors
First / Last seen
2024-02-01 01:05 · 2024-02-01 01:05
Top ASN
AS40021 · Contabo Inc.
Top organization / ISP
Lrtc Inetnum Rent · Contabo Inc.
Top geo
United States · Washington · Seattle
Window / Updated
2024-01-29 → 2024-02-05 · Updated 2026-01-14 · v2
Open report →

163.21.201.0/24

Risk Max — LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
163.21.201.0
Broadcast
163.21.201.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
25.053 , 121.5259
Hits / Errors
12 hits · 1 errors
First / Last seen
2024-11-19 07:14 · 2024-11-19 07:14
Top ASN
AS1659 · Taiwan Academic Network (TANet) Information Center
Top organization / ISP
— · imported inetnum MOEC
Top geo
Taiwan · Taipei City · Taipei
Window / Updated
2024-11-18 → 2024-11-25 · Updated 2026-01-14 · v2
Open report →

89.117.76.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
89.117.76.0
Broadcast
89.117.76.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.0446 , -73.9592
Hits / Errors
2 hits · 0 errors
First / Last seen
2024-02-19 12:31 · 2024-02-19 12:31
Top ASN
AS40021 · Contabo Inc.
Top organization / ISP
Lrtc Inetnum Rent · Contabo Inc.
Top geo
United States · New York · Orangeburg
Window / Updated
2024-02-19 → 2024-02-26 · Updated 2026-01-14 · v2
Open report →

163.21.195.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
163.21.195.0
Broadcast
163.21.195.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
25.053 , 121.5259
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-06-29 09:51 · 2025-06-29 09:51
Top ASN
AS1659 · Taiwan Academic Network (TANet) Information Center
Top organization / ISP
— · imported inetnum MOEC
Top geo
Taiwan · Taipei City · Taipei
Window / Updated
2025-06-23 → 2025-06-30 · Updated 2026-01-14 · v2
Open report →

45.153.75.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
45.153.75.0
Broadcast
45.153.75.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7771 , 38.4639
Hits / Errors
1 hits · 0 errors
First / Last seen
2024-09-23 01:00 · 2024-09-23 01:00
Top ASN
AS8342 · JSC RTComm.RU
Top organization / ISP
Internet technologies LLC · inetnum
Top geo
Russia · Moscow Oblast · Elektrostal
Window / Updated
2024-09-23 → 2024-09-30 · Updated 2026-01-14 · v2
Open report →

80.240.62.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
80.240.62.0
Broadcast
80.240.62.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.1098 , 39.0026
Hits / Errors
1 hits · 0 errors
First / Last seen
2024-05-13 10:11 · 2024-05-13 10:11
Top ASN
AS20895 · "Yuzhniy TELECOM" ltd.
Top organization / ISP
Yuzhniy TELECOM ltd. · inetnum UGTEL
Top geo
Russia · Krasnodar Krai · Krasnodar
Window / Updated
2024-05-13 → 2024-05-20 · Updated 2026-01-14 · v2
Open report →