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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.

216.73.216.0/24

Risk Max 100 HIGH Footprint 0.781% Hits 293472
Prefix / IP version
/24 · IPv4
Network
216.73.216.0
Broadcast
216.73.216.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
39.9625 , -83.0061
Hits / Errors
293472 hits · 4211 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

216.131.84.0/24

Risk Max 1 LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
216.131.84.0
Broadcast
216.131.84.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
39.1031 , -84.512
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

64.252.75.0/24

Risk Max LOW Footprint 1.172% Hits 74
Prefix / IP version
/24 · IPv4
Network
64.252.75.0
Broadcast
64.252.75.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
40.099199999999996 , -83.11410000000001
Hits / Errors
74 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS14618 · Amazon.com, Inc.
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.18.104.0/24

Risk Max LOW Footprint 0.781% Hits 17
Prefix / IP version
/24 · IPv4
Network
3.18.104.0
Broadcast
3.18.104.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
17 hits · 13 errors
First / Last seen
2026-02-27 02:00 · 2026-03-02 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

216.79.17.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
216.79.17.0
Broadcast
216.79.17.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
41.6528 , -83.5379
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-28 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.219.201.0/24

Risk Max LOW Footprint 0.391% Hits 27
Prefix / IP version
/24 · IPv4
Network
18.219.201.0
Broadcast
18.219.201.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
27 hits · 27 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.129.187.0/24

Risk Max LOW Footprint 0.391% Hits 23
Prefix / IP version
/24 · IPv4
Network
3.129.187.0
Broadcast
3.129.187.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
23 hits · 10 errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

13.59.48.0/24

Risk Max LOW Footprint 0.391% Hits 23
Prefix / IP version
/24 · IPv4
Network
13.59.48.0
Broadcast
13.59.48.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
23 hits · 23 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.131.110.0/24

Risk Max LOW Footprint 0.391% Hits 23
Prefix / IP version
/24 · IPv4
Network
3.131.110.0
Broadcast
3.131.110.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
23 hits · 23 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.141.153.0/24

Risk Max LOW Footprint 0.391% Hits 23
Prefix / IP version
/24 · IPv4
Network
3.141.153.0
Broadcast
3.141.153.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
23 hits · 23 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.14.82.0/24

Risk Max LOW Footprint 0.391% Hits 22
Prefix / IP version
/24 · IPv4
Network
3.14.82.0
Broadcast
3.14.82.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
22 hits · 22 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.221.230.0/24

Risk Max LOW Footprint 0.391% Hits 21
Prefix / IP version
/24 · IPv4
Network
18.221.230.0
Broadcast
18.221.230.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
21 hits · 21 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.223.32.0/24

Risk Max LOW Footprint 0.391% Hits 21
Prefix / IP version
/24 · IPv4
Network
18.223.32.0
Broadcast
18.223.32.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
21 hits · 21 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.141.195.0/24

Risk Max LOW Footprint 0.391% Hits 21
Prefix / IP version
/24 · IPv4
Network
3.141.195.0
Broadcast
3.141.195.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
21 hits · 21 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.116.101.0/24

Risk Max LOW Footprint 0.391% Hits 20
Prefix / IP version
/24 · IPv4
Network
18.116.101.0
Broadcast
18.116.101.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
20 hits · 8 errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.217.245.0/24

Risk Max LOW Footprint 0.391% Hits 20
Prefix / IP version
/24 · IPv4
Network
18.217.245.0
Broadcast
18.217.245.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
20 hits · 20 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.14.3.0/24

Risk Max LOW Footprint 0.391% Hits 20
Prefix / IP version
/24 · IPv4
Network
3.14.3.0
Broadcast
3.14.3.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
20 hits · 20 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.19.223.0/24

Risk Max LOW Footprint 0.391% Hits 20
Prefix / IP version
/24 · IPv4
Network
3.19.223.0
Broadcast
3.19.223.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
20 hits · 20 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.116.164.0/24

Risk Max LOW Footprint 0.391% Hits 19
Prefix / IP version
/24 · IPv4
Network
18.116.164.0
Broadcast
18.116.164.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
19 hits · 19 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.117.216.0/24

Risk Max LOW Footprint 0.391% Hits 19
Prefix / IP version
/24 · IPv4
Network
18.117.216.0
Broadcast
18.117.216.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
19 hits · 19 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.221.203.0/24

Risk Max LOW Footprint 0.391% Hits 19
Prefix / IP version
/24 · IPv4
Network
18.221.203.0
Broadcast
18.221.203.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
19 hits · 19 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.131.85.0/24

Risk Max LOW Footprint 0.391% Hits 19
Prefix / IP version
/24 · IPv4
Network
3.131.85.0
Broadcast
3.131.85.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
19 hits · 19 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.144.139.0/24

Risk Max LOW Footprint 0.391% Hits 19
Prefix / IP version
/24 · IPv4
Network
3.144.139.0
Broadcast
3.144.139.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
19 hits · 19 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.141.107.0/24

Risk Max LOW Footprint 0.391% Hits 18
Prefix / IP version
/24 · IPv4
Network
3.141.107.0
Broadcast
3.141.107.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
18 hits · 18 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.14.80.0/24

Risk Max LOW Footprint 0.391% Hits 17
Prefix / IP version
/24 · IPv4
Network
3.14.80.0
Broadcast
3.14.80.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
17 hits · 17 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.15.180.0/24

Risk Max LOW Footprint 0.391% Hits 17
Prefix / IP version
/24 · IPv4
Network
3.15.180.0
Broadcast
3.15.180.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
17 hits · 17 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.16.148.0/24

Risk Max LOW Footprint 0.391% Hits 17
Prefix / IP version
/24 · IPv4
Network
3.16.148.0
Broadcast
3.16.148.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
17 hits · 17 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.191.45.0/24

Risk Max LOW Footprint 0.391% Hits 15
Prefix / IP version
/24 · IPv4
Network
18.191.45.0
Broadcast
18.191.45.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
15 hits · 15 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.218.118.0/24

Risk Max LOW Footprint 0.391% Hits 14
Prefix / IP version
/24 · IPv4
Network
18.218.118.0
Broadcast
18.218.118.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
14 hits · 5 errors
First / Last seen
2026-02-24 02:00 · 2026-03-02 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.223.149.0/24

Risk Max LOW Footprint 0.391% Hits 14
Prefix / IP version
/24 · IPv4
Network
18.223.149.0
Broadcast
18.223.149.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
14 hits · 14 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.141.105.0/24

Risk Max LOW Footprint 0.391% Hits 14
Prefix / IP version
/24 · IPv4
Network
3.141.105.0
Broadcast
3.141.105.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
14 hits · 14 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

16.58.56.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
16.58.56.0
Broadcast
16.58.56.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
12 hits · 4 errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

34.1.24.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
34.1.24.0
Broadcast
34.1.24.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.9611 , -82.9987
Hits / Errors
12 hits · 4 errors
First / Last seen
2026-02-26 02:00 · 2026-03-01 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.223.20.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
18.223.20.0
Broadcast
18.223.20.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
12 hits · 12 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.141.168.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
3.141.168.0
Broadcast
3.141.168.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
12 hits · 12 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.132.26.0/24

Risk Max LOW Footprint 0.391% Hits 11
Prefix / IP version
/24 · IPv4
Network
3.132.26.0
Broadcast
3.132.26.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
11 hits · 2 errors
First / Last seen
2026-02-22 02:00 · 2026-02-25 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.130.168.0/24

Risk Max LOW Footprint 0.391% Hits 9
Prefix / IP version
/24 · IPv4
Network
3.130.168.0
Broadcast
3.130.168.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
9 hits · 2 errors
First / Last seen
2026-02-24 02:00 · 2026-03-01 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.191.234.0/24

Risk Max LOW Footprint 0.391% Hits 9
Prefix / IP version
/24 · IPv4
Network
18.191.234.0
Broadcast
18.191.234.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
9 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

3.131.220.0/24

Risk Max LOW Footprint 0.391% Hits 8
Prefix / IP version
/24 · IPv4
Network
3.131.220.0
Broadcast
3.131.220.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
8 hits · 2 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

18.191.89.0/24

Risk Max LOW Footprint 0.391% Hits 8
Prefix / IP version
/24 · IPv4
Network
18.191.89.0
Broadcast
18.191.89.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
8 hits · 4 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
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