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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: Hyperoptic Ltd · Clear
Snapshot 2026-03-07 Results 18 Page 1 / 1

143.58.245.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
143.58.245.0
Broadcast
143.58.245.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4042 , -0.41817
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Sunbury-on-Thames
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

137.220.68.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
137.220.68.0
Broadcast
137.220.68.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4959 , -0.2245
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-25 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd. · Hyperoptic Ltd.
Top geo
United Kingdom · England · London
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

137.220.71.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
137.220.71.0
Broadcast
137.220.71.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4959 , -0.2245
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd. · Hyperoptic Ltd.
Top geo
United Kingdom · England · London
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.193.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
143.58.193.0
Broadcast
143.58.193.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5017 , -0.0617
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Lewisham
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.128.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.128.0
Broadcast
143.58.128.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5064 , -0.02
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Tower Hamlets
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.227.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.227.0
Broadcast
143.58.227.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.4809 , -2.2374
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Manchester
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.179.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.179.0
Broadcast
143.58.179.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4781 , -0.0279
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Lewisham
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.202.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.202.0
Broadcast
143.58.202.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4805 , -0.0113
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Greenwich
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

140.228.58.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
140.228.58.0
Broadcast
140.228.58.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.477 , -0.1959
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Fulham
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.144.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.144.0
Broadcast
143.58.144.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4772 , -0.1197
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Lambeth
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.169.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.169.0
Broadcast
143.58.169.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5128 , -0.0638
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Tower Hamlets
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.206.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.206.0
Broadcast
143.58.206.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4805 , -0.0113
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Greenwich
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.221.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.221.0
Broadcast
143.58.221.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.4809 , -2.2374
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Salford
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

209.35.92.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
209.35.92.0
Broadcast
209.35.92.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.4809 , -2.23743
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Manchester
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

137.220.69.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
137.220.69.0
Broadcast
137.220.69.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4959 , -0.2245
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd. · Hyperoptic Ltd.
Top geo
United Kingdom · England · London
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

137.220.79.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
137.220.79.0
Broadcast
137.220.79.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4959 , -0.2245
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd. · Hyperoptic Ltd.
Top geo
United Kingdom · England · London
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.203.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.203.0
Broadcast
143.58.203.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4805 , -0.0113
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Greenwich
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

188.214.10.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
188.214.10.0
Broadcast
188.214.10.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5128 , -0.0638
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Tower Hamlets
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →