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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: Skokie · Clear
Snapshot 2026-01-20 Results 4 Page 1 / 1

207.229.140.0/24

Risk Max — LOW Footprint 0.391% Hits 75
Prefix / IP version
/24 · IPv4
Network
207.229.140.0
Broadcast
207.229.140.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.0342 , -87.7568
Hits / Errors
75 hits · 3 errors
First / Last seen
2025-01-10 16:59 · 2025-01-10 19:27
Top ASN
AS6079 · RCN
Top organization / ISP
RCN Corporation · RCN
Top geo
United States · Illinois · Skokie
Window / Updated
2025-01-06 → 2025-01-13 · Updated 2026-01-14 · v2
Open report →

104.179.112.0/24

Risk Max — LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
104.179.112.0
Broadcast
104.179.112.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.0354 , -87.73700000000001
Hits / Errors
12 hits · 1 errors
First / Last seen
2024-02-26 10:05 · 2024-02-26 10:06
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Enterprises, LLC · AT&T Enterprises, LLC
Top geo
United States · Illinois · Skokie
Window / Updated
2024-02-26 → 2024-03-04 · Updated 2026-01-14 · v2
Open report →

207.229.136.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
207.229.136.0
Broadcast
207.229.136.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.0354 , -87.737
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-07-21 17:47 · 2025-07-21 17:47
Top ASN
AS6079 · RCN
Top organization / ISP
RCN Corporation · RCN
Top geo
United States · Illinois · Skokie
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2
Open report →

99.61.249.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.61.249.0
Broadcast
99.61.249.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.0354 , -87.737
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-02-27 09:04 · 2025-02-27 09:04
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Corp. · AT&T Enterprises, LLC
Top geo
United States · Illinois · Skokie
Window / Updated
2025-02-24 → 2025-03-03 · Updated 2026-01-14 · v2
Open report →