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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: Technical Centre Radio Systems Ltd. · Clear
Snapshot 2026-03-07 Results 10 Page 1 / 1

31.135.128.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
31.135.128.0
Broadcast
31.135.128.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
TC Radio Systems · Technical Centre Radio Systems Ltd
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

94.199.160.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
94.199.160.0
Broadcast
94.199.160.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
MIK · Technical Centre Radio Systems Ltd.
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

31.135.152.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
31.135.152.0
Broadcast
31.135.152.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
TC Radio Systems · Technical Centre Radio Systems Ltd
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

31.135.148.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
31.135.148.0
Broadcast
31.135.148.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-26 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
TC Radio Systems · Technical Centre Radio Systems Ltd
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

31.135.155.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
31.135.155.0
Broadcast
31.135.155.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
TC Radio Systems · Technical Centre Radio Systems Ltd
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

31.135.136.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
31.135.136.0
Broadcast
31.135.136.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
TC Radio Systems · Technical Centre Radio Systems Ltd
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

31.135.151.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
31.135.151.0
Broadcast
31.135.151.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
TC Radio Systems · Technical Centre Radio Systems Ltd
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

31.135.145.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
31.135.145.0
Broadcast
31.135.145.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
TC Radio Systems · Technical Centre Radio Systems Ltd
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

94.199.167.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
94.199.167.0
Broadcast
94.199.167.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
MIK Telecom Ltd · Technical Centre Radio Systems Ltd.
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

94.199.166.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
94.199.166.0
Broadcast
94.199.166.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.9207 , 34.7959
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS20539 · Technical Centre Radio Systems Ltd.
Top organization / ISP
MIK Telecom Ltd · Technical Centre Radio Systems Ltd.
Top geo
Ukraine · Sumy · Sumy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →