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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.

81.18.84.0/24

Risk Max LOW Footprint 2.734% Hits 11
Prefix / IP version
/24 · IPv4
Network
81.18.84.0
Broadcast
81.18.84.255
Observed IPs / Subnet size
7 observed · 256 total
Centroid
47.1672 , 27.608299999999996
Hits / Errors
11 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

37.251.222.0/24

Risk Max LOW Footprint 2.734% Hits 7
Prefix / IP version
/24 · IPv4
Network
37.251.222.0
Broadcast
37.251.222.255
Observed IPs / Subnet size
7 observed · 256 total
Centroid
47.167199999999994 , 27.608299999999993
Hits / Errors
7 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

89.39.71.0/24

Risk Max LOW Footprint 1.953% Hits 7
Prefix / IP version
/24 · IPv4
Network
89.39.71.0
Broadcast
89.39.71.255
Observed IPs / Subnet size
5 observed · 256 total
Centroid
47.1672 , 27.608299999999996
Hits / Errors
7 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

82.77.225.0/24

Risk Max LOW Footprint 1.562% Hits 5
Prefix / IP version
/24 · IPv4
Network
82.77.225.0
Broadcast
82.77.225.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
47.1672 , 27.608299999999996
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-03-01 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

82.77.245.0/24

Risk Max LOW Footprint 1.172% Hits 4
Prefix / IP version
/24 · IPv4
Network
82.77.245.0
Broadcast
82.77.245.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-28 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

82.76.117.0/24

Risk Max LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
82.76.117.0
Broadcast
82.76.117.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
47.1672 , 27.608299999999996
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-24 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

37.251.221.0/24

Risk Max LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
37.251.221.0
Broadcast
37.251.221.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-28 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

82.77.237.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
82.77.237.0
Broadcast
82.77.237.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-28 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

109.99.87.0/24

Risk Max LOW Footprint 0.391% Hits 7
Prefix / IP version
/24 · IPv4
Network
109.99.87.0
Broadcast
109.99.87.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.608300000000003
Hits / Errors
7 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-28 02:00
Top ASN
Top organization / ISP
— · Romtelecom
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

82.77.242.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
82.77.242.0
Broadcast
82.77.242.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-28 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

213.157.184.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
213.157.184.0
Broadcast
213.157.184.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-24 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

82.77.236.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
82.77.236.0
Broadcast
82.77.236.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

37.251.220.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
37.251.220.0
Broadcast
37.251.220.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

78.97.221.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
78.97.221.0
Broadcast
78.97.221.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.0497 , 27.5623
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

78.96.28.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
78.96.28.0
Broadcast
78.96.28.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-27 02:00
Top ASN
Top organization / ISP
— · UPC Romania
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

90.95.135.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
90.95.135.0
Broadcast
90.95.135.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

86.123.73.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
86.123.73.0
Broadcast
86.123.73.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.2461 , 26.7293
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-25 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

89.32.221.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
89.32.221.0
Broadcast
89.32.221.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.25 , 26.6167
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
AS39277 · Mondo-Byte SRL
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

109.99.108.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.99.108.0
Broadcast
109.99.108.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
Top organization / ISP
— · Romtelecom
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

37.251.223.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
37.251.223.0
Broadcast
37.251.223.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.196.7.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.196.7.0
Broadcast
81.196.7.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

84.117.27.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
84.117.27.0
Broadcast
84.117.27.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

86.125.183.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
86.125.183.0
Broadcast
86.125.183.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.1672 , 27.6083
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS8708 · RCS & RDS
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2