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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: South Dakota · Clear
Snapshot 2026-03-08 Results 7 Page 1 / 1

209.159.238.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
209.159.238.0
Broadcast
209.159.238.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
44.1415 , -103.2052
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS20412 · Clarity Telecom LLC
Top organization / ISP
Clarity Telecom LLC · Clarity Telecom LLC
Top geo
United States · South Dakota · Rapid City
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

129.101.37.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
129.101.37.0
Broadcast
129.101.37.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
44.9048 , -97.1243
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS11232 · Midcontinent Communications
Top organization / ISP
Midcontinent Communications · Midcontinent Communications
Top geo
United States · South Dakota · Watertown
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

69.77.243.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
69.77.243.0
Broadcast
69.77.243.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.994 , -102.246
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS6580 · Golden West Telecommunications Coop., Inc.
Top organization / ISP
Gwtc Block3 · Golden West Telecommunications Coop., Inc.
Top geo
United States · South Dakota · Wall
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

69.77.247.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
69.77.247.0
Broadcast
69.77.247.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.623 , -96.9426
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS6580 · Golden West Telecommunications Coop., Inc.
Top organization / ISP
Gwtc Block3 · Golden West Telecommunications Coop., Inc.
Top geo
United States · South Dakota · Hartford
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

84.239.50.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
84.239.50.0
Broadcast
84.239.50.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.547 , -96.7244
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS212238 · Datacamp Limited
Top organization / ISP
— · Datacamp Limited
Top geo
United States · South Dakota · Sioux Falls
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

129.101.61.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
129.101.61.0
Broadcast
129.101.61.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.547 , -96.7244
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS11232 · Midcontinent Communications
Top organization / ISP
Midcontinent Communications · Midcontinent Communications
Top geo
United States · South Dakota · Sioux Falls
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

216.249.198.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
216.249.198.0
Broadcast
216.249.198.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.5856 , -96.583
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS401415 · Alliance Communications
Top organization / ISP
SDN Communications Inc. · Alliance Communications
Top geo
United States · South Dakota · Brandon
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →