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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.

3.98.144.0/24

Risk Max 100 HIGH Footprint 0.391% Hits 3794
Prefix / IP version
/24 · IPv4
Network
3.98.144.0
Broadcast
3.98.144.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.6532 , -79.3832
Hits / Errors
3794 hits · 1474 errors
First / Last seen
2023-10-22 23:36 · 2023-10-22 23:43
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Window / Updated
2023-10-16 → 2023-10-23 · Updated 2026-01-14 · v2

35.183.103.0/24

Risk Max 100 HIGH Footprint 0.391% Hits 2030
Prefix / IP version
/24 · IPv4
Network
35.183.103.0
Broadcast
35.183.103.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.6532 , -79.3832
Hits / Errors
2030 hits · 1474 errors
First / Last seen
2023-10-28 11:40 · 2023-10-28 19:41
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Window / Updated
2023-10-23 → 2023-10-30 · Updated 2026-01-14 · v2

15.237.185.0/24

Risk Max 96 HIGH Footprint 0.391% Hits 1241
Prefix / IP version
/24 · IPv4
Network
15.237.185.0
Broadcast
15.237.185.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.8566 , 2.35222
Hits / Errors
1241 hits · 933 errors
First / Last seen
2023-11-12 08:42 · 2023-11-12 09:12
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-11-06 → 2023-11-13 · Updated 2026-01-14 · v2

3.25.180.0/24

Risk Max 96 HIGH Footprint 0.391% Hits 1241
Prefix / IP version
/24 · IPv4
Network
3.25.180.0
Broadcast
3.25.180.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-33.8591 , 151.2002
Hits / Errors
1241 hits · 933 errors
First / Last seen
2023-11-11 15:51 · 2023-11-11 16:20
Top ASN
AS16509 · Amazon.com, Inc.
Window / Updated
2023-11-06 → 2023-11-13 · Updated 2026-01-14 · v2

3.98.56.0/24

Risk Max 95 HIGH Footprint 0.391% Hits 1015
Prefix / IP version
/24 · IPv4
Network
3.98.56.0
Broadcast
3.98.56.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.6532 , -79.3832
Hits / Errors
1015 hits · 737 errors
First / Last seen
2023-10-31 18:23 · 2023-10-31 18:31
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Window / Updated
2023-10-30 → 2023-11-06 · Updated 2026-01-14 · v2

15.223.76.0/24

Risk Max 95 HIGH Footprint 0.391% Hits 1015
Prefix / IP version
/24 · IPv4
Network
15.223.76.0
Broadcast
15.223.76.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.6532 , -79.3832
Hits / Errors
1015 hits · 737 errors
First / Last seen
2023-10-24 17:23 · 2023-10-24 17:31
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Window / Updated
2023-10-23 → 2023-10-30 · Updated 2026-01-14 · v2

35.183.95.0/24

Risk Max 95 HIGH Footprint 0.391% Hits 1015
Prefix / IP version
/24 · IPv4
Network
35.183.95.0
Broadcast
35.183.95.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.6532 , -79.3832
Hits / Errors
1015 hits · 737 errors
First / Last seen
2023-10-18 16:48 · 2023-10-18 16:56
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Window / Updated
2023-10-16 → 2023-10-23 · Updated 2026-01-14 · v2

13.229.219.0/24

Risk Max 84 HIGH Footprint 0.391% Hits 612
Prefix / IP version
/24 · IPv4
Network
13.229.219.0
Broadcast
13.229.219.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
1.28009 , 103.851
Hits / Errors
612 hits · 612 errors
First / Last seen
2025-05-28 18:08 · 2025-05-28 19:05
Top ASN
AS16509 · Amazon.com, Inc.
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

3.27.128.0/24

Risk Max 22 LOW Footprint 0.391% Hits 994
Prefix / IP version
/24 · IPv4
Network
3.27.128.0
Broadcast
3.27.128.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-33.8591 , 151.2002
Hits / Errors
994 hits · 0 errors
First / Last seen
2023-12-29 14:03 · 2023-12-30 19:02
Top ASN
AS16509 · Amazon.com, Inc.
Window / Updated
2023-12-25 → 2024-01-01 · Updated 2026-01-14 · v2

3.10.213.0/24

Risk Max 20 LOW Footprint 0.391% Hits 130
Prefix / IP version
/24 · IPv4
Network
3.10.213.0
Broadcast
3.10.213.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
130 hits · 0 errors
First / Last seen
2025-09-15 00:22 · 2025-09-15 00:22
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-09-08 → 2025-09-15 · Updated 2026-01-14 · v2

3.84.53.0/24

Risk Max 14 LOW Footprint 0.391% Hits 42
Prefix / IP version
/24 · IPv4
Network
3.84.53.0
Broadcast
3.84.53.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0438 , -77.4874
Hits / Errors
42 hits · 2 errors
First / Last seen
2024-01-13 19:07 · 2024-01-14 00:23
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2024-01-08 → 2024-01-15 · Updated 2026-01-14 · v2

54.146.90.0/24

Risk Max 14 LOW Footprint 0.391% Hits 40
Prefix / IP version
/24 · IPv4
Network
54.146.90.0
Broadcast
54.146.90.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0438 , -77.4874
Hits / Errors
40 hits · 0 errors
First / Last seen
2023-12-29 08:07 · 2023-12-29 08:07
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2023-12-25 → 2024-01-01 · Updated 2026-01-14 · v2

13.239.26.0/24

Risk Max 13 LOW Footprint 0.391% Hits 145
Prefix / IP version
/24 · IPv4
Network
13.239.26.0
Broadcast
13.239.26.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-33.8591 , 151.2002
Hits / Errors
145 hits · 65 errors
First / Last seen
2025-04-24 13:05 · 2025-04-27 13:23
Top ASN
AS16509 · Amazon.com, Inc.
Window / Updated
2025-04-21 → 2025-04-28 · Updated 2026-01-14 · v2

13.203.194.0/24

Risk Max 12 LOW Footprint 0.391% Hits 44
Prefix / IP version
/24 · IPv4
Network
13.203.194.0
Broadcast
13.203.194.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
19.076 , 72.8777
Hits / Errors
44 hits · 33 errors
First / Last seen
2025-04-29 07:57 · 2025-04-29 07:57
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Window / Updated
2025-04-28 → 2025-05-05 · Updated 2026-01-14 · v2

13.229.152.0/24

Risk Max 11 LOW Footprint 0.391% Hits 34
Prefix / IP version
/24 · IPv4
Network
13.229.152.0
Broadcast
13.229.152.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
1.28009 , 103.851
Hits / Errors
34 hits · 33 errors
First / Last seen
2023-04-30 11:08 · 2023-04-30 11:08
Top ASN
AS16509 · Amazon.com, Inc.
Window / Updated
2023-04-24 → 2023-05-01 · Updated 2026-01-14 · v2

34.244.117.0/24

Risk Max 10 LOW Footprint 0.391% Hits 49
Prefix / IP version
/24 · IPv4
Network
34.244.117.0
Broadcast
34.244.117.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.34980000000001 , -6.26031
Hits / Errors
49 hits · 45 errors
First / Last seen
2024-02-12 12:42 · 2024-02-12 20:55
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2024-02-12 → 2024-02-19 · Updated 2026-01-14 · v2

54.255.249.0/24

Risk Max 9 LOW Footprint 0.391% Hits 411
Prefix / IP version
/24 · IPv4
Network
54.255.249.0
Broadcast
54.255.249.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
1.28009 , 103.851
Hits / Errors
411 hits · 184 errors
First / Last seen
2025-02-02 15:49 · 2025-02-02 15:57
Top ASN
AS16509 · Amazon.com, Inc.
Window / Updated
2025-01-27 → 2025-02-03 · Updated 2026-01-14 · v2

35.178.113.0/24

Risk Max 8 LOW Footprint 0.391% Hits 136
Prefix / IP version
/24 · IPv4
Network
35.178.113.0
Broadcast
35.178.113.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
136 hits · 124 errors
First / Last seen
2023-10-21 08:26 · 2023-10-21 11:30
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-16 → 2023-10-23 · Updated 2026-01-14 · v2

18.170.98.0/24

Risk Max 8 LOW Footprint 0.391% Hits 95
Prefix / IP version
/24 · IPv4
Network
18.170.98.0
Broadcast
18.170.98.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
95 hits · 63 errors
First / Last seen
2023-11-03 06:03 · 2023-11-03 06:59
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-30 → 2023-11-06 · Updated 2026-01-14 · v2

18.169.157.0/24

Risk Max 7 LOW Footprint 0.391% Hits 93
Prefix / IP version
/24 · IPv4
Network
18.169.157.0
Broadcast
18.169.157.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
93 hits · 67 errors
First / Last seen
2023-11-05 06:11 · 2023-11-05 09:27
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-30 → 2023-11-06 · Updated 2026-01-14 · v2

3.108.58.0/24

Risk Max 6 LOW Footprint 0.391% Hits 128
Prefix / IP version
/24 · IPv4
Network
3.108.58.0
Broadcast
3.108.58.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
19.076 , 72.8777
Hits / Errors
128 hits · 0 errors
First / Last seen
2024-01-10 14:47 · 2024-01-10 14:47
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Window / Updated
2024-01-08 → 2024-01-15 · Updated 2026-01-14 · v2

13.40.23.0/24

Risk Max 6 LOW Footprint 0.391% Hits 84
Prefix / IP version
/24 · IPv4
Network
13.40.23.0
Broadcast
13.40.23.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
84 hits · 65 errors
First / Last seen
2023-11-11 08:31 · 2023-11-11 11:47
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-11-06 → 2023-11-13 · Updated 2026-01-14 · v2

13.40.170.0/24

Risk Max 6 LOW Footprint 0.391% Hits 59
Prefix / IP version
/24 · IPv4
Network
13.40.170.0
Broadcast
13.40.170.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
59 hits · 28 errors
First / Last seen
2023-12-19 06:30 · 2023-12-19 09:08
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-12-18 → 2023-12-25 · Updated 2026-01-14 · v2

18.132.16.0/24

Risk Max 5 LOW Footprint 0.391% Hits 68
Prefix / IP version
/24 · IPv4
Network
18.132.16.0
Broadcast
18.132.16.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
68 hits · 62 errors
First / Last seen
2023-10-31 06:04 · 2023-10-31 07:27
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-30 → 2023-11-06 · Updated 2026-01-14 · v2

52.56.213.0/24

Risk Max 5 LOW Footprint 0.391% Hits 53
Prefix / IP version
/24 · IPv4
Network
52.56.213.0
Broadcast
52.56.213.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
53 hits · 26 errors
First / Last seen
2023-12-14 16:10 · 2023-12-15 01:39
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-12-11 → 2023-12-18 · Updated 2026-01-14 · v2

18.132.203.0/24

Risk Max 4 LOW Footprint 0.391% Hits 68
Prefix / IP version
/24 · IPv4
Network
18.132.203.0
Broadcast
18.132.203.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
68 hits · 62 errors
First / Last seen
2023-10-29 06:10 · 2023-10-29 09:16
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-23 → 2023-10-30 · Updated 2026-01-14 · v2

18.130.38.0/24

Risk Max 4 LOW Footprint 0.391% Hits 68
Prefix / IP version
/24 · IPv4
Network
18.130.38.0
Broadcast
18.130.38.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
68 hits · 62 errors
First / Last seen
2023-10-25 07:04 · 2023-10-25 09:06
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-23 → 2023-10-30 · Updated 2026-01-14 · v2

18.170.223.0/24

Risk Max 4 LOW Footprint 0.391% Hits 68
Prefix / IP version
/24 · IPv4
Network
18.170.223.0
Broadcast
18.170.223.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
68 hits · 62 errors
First / Last seen
2023-10-23 07:22 · 2023-10-23 11:31
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-23 → 2023-10-30 · Updated 2026-01-14 · v2

35.176.45.0/24

Risk Max 4 LOW Footprint 0.391% Hits 67
Prefix / IP version
/24 · IPv4
Network
35.176.45.0
Broadcast
35.176.45.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
67 hits · 61 errors
First / Last seen
2023-10-27 07:03 · 2023-10-27 07:54
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-23 → 2023-10-30 · Updated 2026-01-14 · v2

18.230.203.0/24

Risk Max 4 LOW Footprint 0.391% Hits 22
Prefix / IP version
/24 · IPv4
Network
18.230.203.0
Broadcast
18.230.203.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.5505 , -46.63329999999999
Hits / Errors
22 hits · 4 errors
First / Last seen
2025-03-09 13:00 · 2025-03-09 13:01
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-03-03 → 2025-03-10 · Updated 2026-01-14 · v2

3.239.82.0/24

Risk Max 4 LOW Footprint 0.391% Hits 22
Prefix / IP version
/24 · IPv4
Network
3.239.82.0
Broadcast
3.239.82.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0438 , -77.4874
Hits / Errors
22 hits · 8 errors
First / Last seen
2024-04-22 03:03 · 2024-04-24 16:39
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2024-04-22 → 2024-04-29 · Updated 2026-01-14 · v2

18.201.70.0/24

Risk Max 4 LOW Footprint 0.391% Hits 20
Prefix / IP version
/24 · IPv4
Network
18.201.70.0
Broadcast
18.201.70.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.3498 , -6.26031
Hits / Errors
20 hits · 3 errors
First / Last seen
2025-01-31 07:12 · 2025-01-31 07:12
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-01-27 → 2025-02-03 · Updated 2026-01-14 · v2

52.31.124.0/24

Risk Max 4 LOW Footprint 0.391% Hits 18
Prefix / IP version
/24 · IPv4
Network
52.31.124.0
Broadcast
52.31.124.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
53.3498 , -6.26031
Hits / Errors
18 hits · 17 errors
First / Last seen
2024-02-04 18:23 · 2024-02-04 20:09
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2024-01-29 → 2024-02-05 · Updated 2026-01-14 · v2

3.80.120.0/24

Risk Max 3 LOW Footprint 0.391% Hits 1725
Prefix / IP version
/24 · IPv4
Network
3.80.120.0
Broadcast
3.80.120.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0438 , -77.4874
Hits / Errors
1725 hits · 741 errors
First / Last seen
2024-11-07 03:59 · 2024-11-08 15:42
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2024-11-04 → 2024-11-11 · Updated 2026-01-14 · v2

13.40.106.0/24

Risk Max 3 LOW Footprint 0.391% Hits 46
Prefix / IP version
/24 · IPv4
Network
13.40.106.0
Broadcast
13.40.106.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.507400000000004 , -0.127758
Hits / Errors
46 hits · 24 errors
First / Last seen
2024-01-25 22:49 · 2024-01-26 06:19
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2024-01-22 → 2024-01-29 · Updated 2026-01-14 · v2

13.233.153.0/24

Risk Max 3 LOW Footprint 0.391% Hits 45
Prefix / IP version
/24 · IPv4
Network
13.233.153.0
Broadcast
13.233.153.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
19.076 , 72.8777
Hits / Errors
45 hits · 0 errors
First / Last seen
2024-02-06 16:53 · 2024-02-06 16:54
Top ASN
AS16509 · Amazon.com, Inc.
Top geo
Window / Updated
2024-02-05 → 2024-02-12 · Updated 2026-01-14 · v2

13.40.132.0/24

Risk Max 3 LOW Footprint 0.391% Hits 36
Prefix / IP version
/24 · IPv4
Network
13.40.132.0
Broadcast
13.40.132.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
36 hits · 24 errors
First / Last seen
2024-01-19 03:38 · 2024-01-19 04:51
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2024-01-15 → 2024-01-22 · Updated 2026-01-14 · v2

3.8.101.0/24

Risk Max 3 LOW Footprint 0.391% Hits 36
Prefix / IP version
/24 · IPv4
Network
3.8.101.0
Broadcast
3.8.101.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
36 hits · 15 errors
First / Last seen
2023-12-12 16:12 · 2023-12-12 21:13
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-12-11 → 2023-12-18 · Updated 2026-01-14 · v2

52.56.108.0/24

Risk Max 3 LOW Footprint 0.391% Hits 36
Prefix / IP version
/24 · IPv4
Network
52.56.108.0
Broadcast
52.56.108.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
36 hits · 16 errors
First / Last seen
2023-12-09 06:35 · 2023-12-09 08:21
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-12-04 → 2023-12-11 · Updated 2026-01-14 · v2

35.178.167.0/24

Risk Max 3 LOW Footprint 0.391% Hits 34
Prefix / IP version
/24 · IPv4
Network
35.178.167.0
Broadcast
35.178.167.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5074 , -0.127758
Hits / Errors
34 hits · 15 errors
First / Last seen
2023-12-06 16:05 · 2023-12-06 18:12
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-12-04 → 2023-12-11 · Updated 2026-01-14 · v2
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