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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: ATM05 · Clear
Snapshot 2026-02-26 Results 8 Page 1 / 1

154.121.53.0/24

Risk Max — LOW Footprint 9.375% Hits 28
Prefix / IP version
/24 · IPv4
Network
154.121.53.0
Broadcast
154.121.53.255
Observed IPs / Subnet size
24 observed · 256 total
Centroid
36.33240714285715 , 6.587589642857144
Hits / Errors
28 hits · 3 errors
First / Last seen
2026-02-15 02:00 · 2026-02-22 02:00
Top ASN
AS327712 · Telecom Algeria
Top organization / ISP
— · ATM05
Top geo
Algeria · Constantine · Constantine
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

154.121.50.0/24

Risk Max — LOW Footprint 8.984% Hits 26
Prefix / IP version
/24 · IPv4
Network
154.121.50.0
Broadcast
154.121.50.255
Observed IPs / Subnet size
23 observed · 256 total
Centroid
36.36399615384616 , 6.616025769230772
Hits / Errors
26 hits · 5 errors
First / Last seen
2026-02-15 02:00 · 2026-02-23 02:00
Top ASN
AS327712 · Telecom Algeria
Top organization / ISP
— · ATM05
Top geo
Algeria · Constantine · Constantine
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

154.121.52.0/24

Risk Max — LOW Footprint 7.031% Hits 26
Prefix / IP version
/24 · IPv4
Network
154.121.52.0
Broadcast
154.121.52.255
Observed IPs / Subnet size
18 observed · 256 total
Centroid
36.18676153846154 , 5.471908076923077
Hits / Errors
26 hits · 7 errors
First / Last seen
2026-02-16 02:00 · 2026-02-23 02:00
Top ASN
AS327712 · Telecom Algeria
Top organization / ISP
— · ATM05
Top geo
Algeria · Sétif · Sétif
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

154.121.51.0/24

Risk Max — LOW Footprint 5.859% Hits 25
Prefix / IP version
/24 · IPv4
Network
154.121.51.0
Broadcast
154.121.51.255
Observed IPs / Subnet size
15 observed · 256 total
Centroid
35.93136799999999 , 5.598859200000001
Hits / Errors
25 hits · 0 errors
First / Last seen
2026-02-15 02:00 · 2026-02-22 02:00
Top ASN
AS327712 · Telecom Algeria
Top organization / ISP
— · ATM05
Top geo
Algeria · M'Sila · M'Sila
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

154.121.54.0/24

Risk Max — LOW Footprint 3.516% Hits 17
Prefix / IP version
/24 · IPv4
Network
154.121.54.0
Broadcast
154.121.54.255
Observed IPs / Subnet size
9 observed · 256 total
Centroid
35.60422352941176 , 6.1996788235294105
Hits / Errors
17 hits · 2 errors
First / Last seen
2026-02-15 02:00 · 2026-02-22 02:00
Top ASN
AS327712 · Telecom Algeria
Top organization / ISP
— · ATM05
Top geo
Algeria · Batna · Batna City
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

154.121.48.0/24

Risk Max — LOW Footprint 3.516% Hits 13
Prefix / IP version
/24 · IPv4
Network
154.121.48.0
Broadcast
154.121.48.255
Observed IPs / Subnet size
9 observed · 256 total
Centroid
36.262138461538456 , 5.8731800000000005
Hits / Errors
13 hits · 0 errors
First / Last seen
2026-02-16 02:00 · 2026-02-23 02:00
Top ASN
AS327712 · Telecom Algeria
Top organization / ISP
— · ATM05
Top geo
Algeria · Sétif · Sétif
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

154.121.49.0/24

Risk Max — LOW Footprint 2.734% Hits 11
Prefix / IP version
/24 · IPv4
Network
154.121.49.0
Broadcast
154.121.49.255
Observed IPs / Subnet size
7 observed · 256 total
Centroid
36.20789090909091 , 5.522327272727273
Hits / Errors
11 hits · 1 errors
First / Last seen
2026-02-15 02:00 · 2026-02-22 02:00
Top ASN
AS327712 · Telecom Algeria
Top organization / ISP
— · ATM05
Top geo
Algeria · Sétif · Sétif
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →

154.121.55.0/24

Risk Max — LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
154.121.55.0
Broadcast
154.121.55.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
36.365 , 6.614720000000001
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-15 02:00 · 2026-02-18 02:00
Top ASN
AS327712 · Telecom Algeria
Top organization / ISP
— · ATM05
Top geo
Algeria · Constantine · Constantine
Window / Updated
2026-02-16 → 2026-02-23 · Updated 2026-02-24 · v2
Open report →