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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: Cheyenne · Clear
Snapshot 2026-03-08 Results 2 Page 1 / 1

4.255.221.0/24

Risk Max 8 LOW Footprint 0.391% Hits 22
Prefix / IP version
/24 · IPv4
Network
4.255.221.0
Broadcast
4.255.221.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.13925 , -104.816154
Hits / Errors
22 hits · 19 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS8075 · Microsoft Corporation
Top organization / ISP
Microsoft Azure Cloud (westcentralus) · Microsoft Corporation
Top geo
United States · Wyoming · Cheyenne
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

57.151.128.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
57.151.128.0
Broadcast
57.151.128.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.13925 , -104.816154
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS8075 · Microsoft Corporation
Top organization / ISP
Microsoft Azure Cloud (westcentralus) · Microsoft Corporation
Top geo
United States · Wyoming · Cheyenne
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →