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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

44.203.16.0/24

Risk Max 100 HIGH Footprint 0.391% Hits 2030
Prefix / IP version
/24 · IPv4
Network
44.203.16.0
Broadcast
44.203.16.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0438 , -77.4874
Hits / Errors
2030 hits · 1474 errors
First / Last seen
2023-10-29 13:24 · 2023-10-29 21:40
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2023-10-23 → 2023-10-30 · 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

18.191.166.0/24

Risk Max 67 MED Footprint 0.391% Hits 4616
Prefix / IP version
/24 · IPv4
Network
18.191.166.0
Broadcast
18.191.166.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
4616 hits · 850 errors
First / Last seen
2025-05-30 05:31 · 2025-05-30 12:29
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

3.141.40.0/24

Risk Max 57 MED Footprint 0.781% Hits 4149
Prefix / IP version
/24 · IPv4
Network
3.141.40.0
Broadcast
3.141.40.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
4149 hits · 1055 errors
First / Last seen
2025-05-26 09:59 · 2025-05-30 19:21
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

44.243.120.0/24

Risk Max 50 MED Footprint 0.391% Hits 354
Prefix / IP version
/24 · IPv4
Network
44.243.120.0
Broadcast
44.243.120.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.5235 , -122.67600000000002
Hits / Errors
354 hits · 5 errors
First / Last seen
2025-01-21 02:25 · 2025-01-22 20:34
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-01-20 → 2025-01-27 · Updated 2026-01-14 · v2

3.144.185.0/24

Risk Max 47 MED Footprint 0.391% Hits 3196
Prefix / IP version
/24 · IPv4
Network
3.144.185.0
Broadcast
3.144.185.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
3196 hits · 832 errors
First / Last seen
2025-05-27 21:01 · 2025-05-31 21:04
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

216.73.217.0/24

Risk Max 36 MED Footprint 1.172% Hits 2143
Prefix / IP version
/24 · IPv4
Network
216.73.217.0
Broadcast
216.73.217.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
39.9625 , -83.0061
Hits / Errors
2143 hits · 547 errors
First / Last seen
2025-07-29 04:57 · 2025-07-29 18:22
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

44.199.198.0/24

Risk Max 36 MED Footprint 0.391% Hits 427
Prefix / IP version
/24 · IPv4
Network
44.199.198.0
Broadcast
44.199.198.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.043800000000005 , -77.4874
Hits / Errors
427 hits · 255 errors
First / Last seen
2025-12-17 00:05 · 2025-12-17 00:35
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2

3.12.84.0/24

Risk Max 32 LOW Footprint 0.391% Hits 1830
Prefix / IP version
/24 · IPv4
Network
3.12.84.0
Broadcast
3.12.84.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
1830 hits · 435 errors
First / Last seen
2025-05-31 09:44 · 2025-05-31 16:34
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

43.201.96.0/24

Risk Max 25 LOW Footprint 0.391% Hits 81
Prefix / IP version
/24 · IPv4
Network
43.201.96.0
Broadcast
43.201.96.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.5665 , 126.97799999999998
Hits / Errors
81 hits · 49 errors
First / Last seen
2025-11-15 21:57 · 2025-11-15 21:58
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-11-10 → 2025-11-17 · Updated 2026-01-14 · v2

3.136.17.0/24

Risk Max 23 LOW Footprint 0.391% Hits 2019
Prefix / IP version
/24 · IPv4
Network
3.136.17.0
Broadcast
3.136.17.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
2019 hits · 359 errors
First / Last seen
2025-05-30 01:56 · 2025-05-30 04:21
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

15.188.78.0/24

Risk Max 23 LOW Footprint 0.391% Hits 34
Prefix / IP version
/24 · IPv4
Network
15.188.78.0
Broadcast
15.188.78.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.8566 , 2.35222
Hits / Errors
34 hits · 0 errors
First / Last seen
2025-01-03 19:37 · 2025-01-03 20:14
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2024-12-30 → 2025-01-06 · Updated 2026-01-14 · v2

3.144.79.0/24

Risk Max 22 LOW Footprint 0.391% Hits 1296
Prefix / IP version
/24 · IPv4
Network
3.144.79.0
Broadcast
3.144.79.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
1296 hits · 388 errors
First / Last seen
2025-05-27 20:18 · 2025-05-31 01:49
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

13.58.156.0/24

Risk Max 22 LOW Footprint 0.391% Hits 1138
Prefix / IP version
/24 · IPv4
Network
13.58.156.0
Broadcast
13.58.156.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
1138 hits · 0 errors
First / Last seen
2025-05-19 07:42 · 2025-05-20 15:10
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · 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

3.138.188.0/24

Risk Max 20 LOW Footprint 0.391% Hits 922
Prefix / IP version
/24 · IPv4
Network
3.138.188.0
Broadcast
3.138.188.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
922 hits · 2 errors
First / Last seen
2025-05-19 22:20 · 2025-05-19 22:20
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

54.253.174.0/24

Risk Max 20 LOW Footprint 0.391% Hits 130
Prefix / IP version
/24 · IPv4
Network
54.253.174.0
Broadcast
54.253.174.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-33.8591 , 151.2002
Hits / Errors
130 hits · 0 errors
First / Last seen
2025-09-15 08:05 · 2025-09-15 08:05
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2025-09-15 → 2025-09-22 · 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

34.239.180.0/24

Risk Max 20 LOW Footprint 0.391% Hits 130
Prefix / IP version
/24 · IPv4
Network
34.239.180.0
Broadcast
34.239.180.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0438 , -77.4874
Hits / Errors
130 hits · 128 errors
First / Last seen
2023-10-04 04:50 · 2023-10-04 06:17
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2023-10-02 → 2023-10-09 · Updated 2026-01-14 · v2

35.87.129.0/24

Risk Max 20 LOW Footprint 0.391% Hits 130
Prefix / IP version
/24 · IPv4
Network
35.87.129.0
Broadcast
35.87.129.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.5235 , -122.676
Hits / Errors
130 hits · 128 errors
First / Last seen
2023-10-03 16:08 · 2023-10-03 16:22
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-02 → 2023-10-09 · Updated 2026-01-14 · v2

34.219.57.0/24

Risk Max 18 LOW Footprint 0.391% Hits 89
Prefix / IP version
/24 · IPv4
Network
34.219.57.0
Broadcast
34.219.57.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.5235 , -122.676
Hits / Errors
89 hits · 2 errors
First / Last seen
2023-10-03 10:47 · 2023-10-03 15:08
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-10-02 → 2023-10-09 · Updated 2026-01-14 · v2

54.159.75.0/24

Risk Max 18 LOW Footprint 0.391% Hits 65
Prefix / IP version
/24 · IPv4
Network
54.159.75.0
Broadcast
54.159.75.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0438 , -77.4874
Hits / Errors
65 hits · 31 errors
First / Last seen
2024-09-05 03:28 · 2024-09-05 03:29
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2024-09-02 → 2024-09-09 · Updated 2026-01-14 · v2

54.227.146.0/24

Risk Max 17 LOW Footprint 0.391% Hits 65
Prefix / IP version
/24 · IPv4
Network
54.227.146.0
Broadcast
54.227.146.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0438 , -77.4874
Hits / Errors
65 hits · 16 errors
First / Last seen
2025-06-23 02:11 · 2025-06-23 03:19
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2025-06-23 → 2025-06-30 · Updated 2026-01-14 · v2

52.15.169.0/24

Risk Max 16 LOW Footprint 0.391% Hits 858
Prefix / IP version
/24 · IPv4
Network
52.15.169.0
Broadcast
52.15.169.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
858 hits · 0 errors
First / Last seen
2025-04-07 12:26 · 2025-04-11 01:22
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-04-07 → 2025-04-14 · Updated 2026-01-14 · v2

34.211.47.0/24

Risk Max 16 LOW Footprint 0.391% Hits 57
Prefix / IP version
/24 · IPv4
Network
34.211.47.0
Broadcast
34.211.47.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.5235 , -122.676
Hits / Errors
57 hits · 0 errors
First / Last seen
2023-08-13 20:36 · 2023-08-13 20:37
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2023-08-07 → 2023-08-14 · Updated 2026-01-14 · v2

3.139.99.0/24

Risk Max 15 LOW Footprint 0.391% Hits 1030
Prefix / IP version
/24 · IPv4
Network
3.139.99.0
Broadcast
3.139.99.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
1030 hits · 187 errors
First / Last seen
2025-05-28 00:29 · 2025-05-30 05:22
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

3.148.241.0/24

Risk Max 14 LOW Footprint 0.781% Hits 789
Prefix / IP version
/24 · IPv4
Network
3.148.241.0
Broadcast
3.148.241.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
789 hits · 1 errors
First / Last seen
2025-05-20 06:38 · 2025-05-21 02:48
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.12.153.0/24

Risk Max 14 LOW Footprint 0.391% Hits 798
Prefix / IP version
/24 · IPv4
Network
3.12.153.0
Broadcast
3.12.153.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
798 hits · 1 errors
First / Last seen
2025-05-20 17:27 · 2025-05-21 13:18
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

18.217.226.0/24

Risk Max 14 LOW Footprint 0.391% Hits 755
Prefix / IP version
/24 · IPv4
Network
18.217.226.0
Broadcast
18.217.226.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
755 hits · 92 errors
First / Last seen
2025-05-26 01:47 · 2025-05-30 00:31
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

44.203.110.0/24

Risk Max 14 LOW Footprint 0.391% Hits 42
Prefix / IP version
/24 · IPv4
Network
44.203.110.0
Broadcast
44.203.110.255
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 19:46 · 2024-01-14 02:55
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2024-01-08 → 2024-01-15 · 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

100.25.30.0/24

Risk Max 14 LOW Footprint 0.391% Hits 40
Prefix / IP version
/24 · IPv4
Network
100.25.30.0
Broadcast
100.25.30.255
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 03:00 · 2023-12-29 03:00
Top ASN
AS14618 · Amazon.com, Inc.
Top organization / ISP
Window / Updated
2023-12-25 → 2024-01-01 · Updated 2026-01-14 · v2
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