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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: AT&T Internet Services · Clear
Snapshot 2026-03-07 Results 16 Page 1 / 1

99.125.161.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
99.125.161.0
Broadcast
99.125.161.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.8183 , -87.6095
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · 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 →

99.51.75.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
99.51.75.0
Broadcast
99.51.75.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.3512 , -121.8846
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · California · San Jose
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.118.92.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
99.118.92.0
Broadcast
99.118.92.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.0486 , -85.9172
Hits / Errors
2 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 Internet Services · AT&T Enterprises, LLC
Top geo
United States · Alabama · Gadsden
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.116.97.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.116.97.0
Broadcast
99.116.97.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.0913 , -80.3271
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · North Carolina · Winston-Salem
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.114.251.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.114.251.0
Broadcast
99.114.251.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.6951 , -97.269
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · Texas · Fort Worth
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.116.124.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.116.124.0
Broadcast
99.116.124.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.9099 , -82.4627
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · South Carolina · Greenville
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.48.31.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.48.31.0
Broadcast
99.48.31.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.8495 , -118.0084
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · California · Buena Park
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.58.182.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.58.182.0
Broadcast
99.58.182.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
31.8859 , -102.352
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · Texas · Odessa
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.60.101.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.60.101.0
Broadcast
99.60.101.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
26.3432 , -80.2116
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · Florida · Boca Raton
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.36.108.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.36.108.0
Broadcast
99.36.108.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.9247 , -96.8917
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · Texas · Dallas
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

75.9.189.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
75.9.189.0
Broadcast
75.9.189.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.1154 , -88.0346
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · Wisconsin · Milwaukee
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.113.206.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.113.206.0
Broadcast
99.113.206.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.3693 , -81.9568
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · North Carolina · Rutherfordton
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.113.82.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.113.82.0
Broadcast
99.113.82.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
25.6992 , -80.3613
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · Florida · Miami
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.117.244.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.117.244.0
Broadcast
99.117.244.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6375 , -90.3778
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS7018 · AT&T Enterprises, LLC
Top organization / ISP
AT&T Internet Services · AT&T Enterprises, LLC
Top geo
United States · Missouri · St Louis
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.127.20.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.127.20.0
Broadcast
99.127.20.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.8996 , -96.7906
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 Internet Services · AT&T Enterprises, LLC
Top geo
United States · Texas · Dallas
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

99.61.174.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
99.61.174.0
Broadcast
99.61.174.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.8655 , -86.122
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 Internet Services · AT&T Enterprises, LLC
Top geo
United States · Indiana · Indianapolis
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →