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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: Ústí nad Orlicí · Clear
Snapshot 2026-03-06 Results 6 Page 1 / 1

109.81.125.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
109.81.125.0
Broadcast
109.81.125.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
49.978100000000005 , 16.3865
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS5610 · O2 Czech Republic, a.s.
Top organization / ISP
— · FIX BB Czechia-vl
Top geo
Czechia · Pardubický kraj · Ústí nad Orlicí
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.81.123.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
109.81.123.0
Broadcast
109.81.123.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
49.978100000000005 , 16.3865
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS5610 · O2 Czech Republic, a.s.
Top organization / ISP
— · FIX BB Czechia-vl
Top geo
Czechia · Pardubický kraj · Ústí nad Orlicí
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

185.87.142.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
185.87.142.0
Broadcast
185.87.142.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
49.978100000000005 , 16.3865
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS204666 · Jiri Tlapak
Top organization / ISP
Jiri Tlapak · Jiri Tlapak
Top geo
Czechia · Pardubický kraj · Ústí nad Orlicí
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.81.126.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.81.126.0
Broadcast
109.81.126.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
49.9781 , 16.3865
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS5610 · O2 Czech Republic, a.s.
Top organization / ISP
— · FIX BB Czechia-vl
Top geo
Czechia · Pardubický kraj · Ústí nad Orlicí
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.81.120.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.81.120.0
Broadcast
109.81.120.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
49.9781 , 16.3865
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS5610 · O2 Czech Republic, a.s.
Top organization / ISP
— · FIX BB Czechia-vl
Top geo
Czechia · Pardubický kraj · Ústí nad Orlicí
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.81.121.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.81.121.0
Broadcast
109.81.121.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
49.9781 , 16.3865
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS5610 · O2 Czech Republic, a.s.
Top organization / ISP
— · FIX BB Czechia-vl
Top geo
Czechia · Pardubický kraj · Ústí nad Orlicí
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →