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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: NetSpeed LLC · Clear
Snapshot 2026-01-23 Results 11 Page 1 / 1

216.49.135.0/24

Risk Max — LOW Footprint 0.391% Hits 299
Prefix / IP version
/24 · IPv4
Network
216.49.135.0
Broadcast
216.49.135.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.668 , -72.7802
Hits / Errors
299 hits · 54 errors
First / Last seen
2025-01-23 21:12 · 2025-01-24 19:55
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · New Britain
Window / Updated
2025-01-20 → 2025-01-27 · Updated 2026-01-14 · v2
Open report →

216.49.129.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
216.49.129.0
Broadcast
216.49.129.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.2707 , -72.9471
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-08-07 03:28 · 2025-08-07 03:28
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · West Haven
Window / Updated
2025-08-04 → 2025-08-11 · Updated 2026-01-14 · v2
Open report →

216.49.138.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
216.49.138.0
Broadcast
216.49.138.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.1682 , -73.2689
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-08-02 23:20 · 2025-08-02 23:20
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · Fairfield
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

38.135.8.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
38.135.8.0
Broadcast
38.135.8.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.6047 , -72.8813
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 17:18 · 2025-05-23 17:18
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · Southington
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2
Open report →

216.49.139.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
216.49.139.0
Broadcast
216.49.139.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.6868 , -72.7248
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-25 02:28 · 2025-11-25 02:28
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · Newington
Window / Updated
2025-11-24 → 2025-12-01 · Updated 2026-01-14 · v2
Open report →

216.49.141.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
216.49.141.0
Broadcast
216.49.141.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.7803 , -72.618
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-08-15 10:08 · 2025-08-15 10:08
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · East Hartford
Window / Updated
2025-08-11 → 2025-08-18 · Updated 2026-01-14 · v2
Open report →

64.224.255.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
64.224.255.0
Broadcast
64.224.255.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.3186 , -72.9302
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-24 02:49 · 2025-07-24 02:49
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · New Haven
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2
Open report →

216.49.131.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
216.49.131.0
Broadcast
216.49.131.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.6026 , -72.9765
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-06 06:17 · 2025-05-06 06:17
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · Wolcott
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

216.49.132.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
216.49.132.0
Broadcast
216.49.132.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.3484 , -72.9117
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-05 08:28 · 2025-05-05 08:28
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · Hamden
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

64.224.249.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
64.224.249.0
Broadcast
64.224.249.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.7599 , -72.7574
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-05 08:06 · 2025-05-05 08:06
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · West Hartford
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

64.25.2.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
64.25.2.0
Broadcast
64.25.2.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.1928 , -73.2389
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-05 04:53 · 2025-05-05 04:53
Top ASN
AS395748 · NetSpeed LLC
Top organization / ISP
NetSpeed LLC · NetSpeed LLC
Top geo
United States · Connecticut · Fairfield
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →