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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: Chicago · Clear
Snapshot 2026-03-08 Results 83 Page 3 / 3

172.58.164.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.58.164.0
Broadcast
172.58.164.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.8835 , -87.6305
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · Illinois · Chicago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.58.166.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.58.166.0
Broadcast
172.58.166.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.8835 , -87.6305
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · Illinois · Chicago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.71.92.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.71.92.0
Broadcast
99.71.92.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.7697 , -87.6985
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Corp · AT&T Enterprises, LLC
Top geo
United States · Illinois · Chicago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →
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