DigitalOcean Referral Badge
cloud1
cloud2
cloud3
cloud4
cloud5
cloud6

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.

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

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

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

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

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

3.138.188.0/24

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

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

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

18.222.112.0/24

Risk Max 12 LOW Footprint 0.781% Hits 838
Prefix / IP version
/24 · IPv4
Network
18.222.112.0
Broadcast
18.222.112.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
838 hits · 2 errors
First / Last seen
2025-05-19 17:39 · 2025-05-21 16:30
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

13.59.22.0/24

Risk Max 12 LOW Footprint 0.781% Hits 687
Prefix / IP version
/24 · IPv4
Network
13.59.22.0
Broadcast
13.59.22.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
687 hits · 8 errors
First / Last seen
2025-05-19 18:59 · 2025-05-21 19:59
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

18.117.186.0/24

Risk Max 12 LOW Footprint 0.391% Hits 798
Prefix / IP version
/24 · IPv4
Network
18.117.186.0
Broadcast
18.117.186.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
798 hits · 2 errors
First / Last seen
2025-05-19 01:32 · 2025-05-21 14:22
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

18.221.228.0/24

Risk Max 12 LOW Footprint 0.391% Hits 707
Prefix / IP version
/24 · IPv4
Network
18.221.228.0
Broadcast
18.221.228.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
707 hits · 112 errors
First / Last seen
2025-05-28 04:53 · 2025-05-29 09:56
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

3.134.89.0/24

Risk Max 12 LOW Footprint 0.391% Hits 564
Prefix / IP version
/24 · IPv4
Network
3.134.89.0
Broadcast
3.134.89.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
564 hits · 10 errors
First / Last seen
2025-05-19 18:49 · 2025-05-22 00:07
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.15.2.0/24

Risk Max 12 LOW Footprint 0.391% Hits 530
Prefix / IP version
/24 · IPv4
Network
3.15.2.0
Broadcast
3.15.2.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
530 hits · 0 errors
First / Last seen
2025-05-20 14:09 · 2025-05-20 14:09
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.148.200.0/24

Risk Max 11 LOW Footprint 1.172% Hits 1125
Prefix / IP version
/24 · IPv4
Network
3.148.200.0
Broadcast
3.148.200.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
1125 hits · 12 errors
First / Last seen
2025-05-19 07:32 · 2025-05-22 01:25
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.149.230.0/24

Risk Max 11 LOW Footprint 1.172% Hits 1011
Prefix / IP version
/24 · IPv4
Network
3.149.230.0
Broadcast
3.149.230.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
40.09920000000001 , -83.11409999999998
Hits / Errors
1011 hits · 10 errors
First / Last seen
2025-05-19 06:49 · 2025-05-21 20:23
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

18.226.181.0/24

Risk Max 11 LOW Footprint 1.172% Hits 772
Prefix / IP version
/24 · IPv4
Network
18.226.181.0
Broadcast
18.226.181.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
772 hits · 2 errors
First / Last seen
2025-05-20 21:29 · 2025-05-22 01:34
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.12.160.0/24

Risk Max 11 LOW Footprint 0.781% Hits 576
Prefix / IP version
/24 · IPv4
Network
3.12.160.0
Broadcast
3.12.160.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.09920000000001 , -83.11409999999998
Hits / Errors
576 hits · 4 errors
First / Last seen
2025-05-19 03:27 · 2025-05-21 12:57
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.149.249.0/24

Risk Max 10 LOW Footprint 1.562% Hits 795
Prefix / IP version
/24 · IPv4
Network
3.149.249.0
Broadcast
3.149.249.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
795 hits · 7 errors
First / Last seen
2025-05-19 04:08 · 2025-05-21 22:13
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.15.10.0/24

Risk Max 10 LOW Footprint 1.172% Hits 950
Prefix / IP version
/24 · IPv4
Network
3.15.10.0
Broadcast
3.15.10.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
950 hits · 1 errors
First / Last seen
2025-05-19 02:09 · 2025-05-21 19:33
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.15.26.0/24

Risk Max 10 LOW Footprint 0.781% Hits 1021
Prefix / IP version
/24 · IPv4
Network
3.15.26.0
Broadcast
3.15.26.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
1021 hits · 4 errors
First / Last seen
2025-05-19 02:51 · 2025-05-21 22:44
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.128.190.0/24

Risk Max 10 LOW Footprint 0.781% Hits 773
Prefix / IP version
/24 · IPv4
Network
3.128.190.0
Broadcast
3.128.190.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
773 hits · 2 errors
First / Last seen
2025-05-19 03:01 · 2025-05-21 13:21
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.144.24.0/24

Risk Max 10 LOW Footprint 0.391% Hits 734
Prefix / IP version
/24 · IPv4
Network
3.144.24.0
Broadcast
3.144.24.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
734 hits · 6 errors
First / Last seen
2025-05-19 18:07 · 2025-05-21 21:56
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

18.216.179.0/24

Risk Max 10 LOW Footprint 0.391% Hits 445
Prefix / IP version
/24 · IPv4
Network
18.216.179.0
Broadcast
18.216.179.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
445 hits · 0 errors
First / Last seen
2025-04-01 03:38 · 2025-04-07 00:43
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-03-31 → 2025-04-07 · Updated 2026-01-14 · v2

3.143.7.0/24

Risk Max 9 LOW Footprint 1.172% Hits 852
Prefix / IP version
/24 · IPv4
Network
3.143.7.0
Broadcast
3.143.7.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
852 hits · 2 errors
First / Last seen
2025-05-19 11:58 · 2025-05-21 23:53
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

18.225.56.0/24

Risk Max 9 LOW Footprint 1.172% Hits 831
Prefix / IP version
/24 · IPv4
Network
18.225.56.0
Broadcast
18.225.56.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
831 hits · 2 errors
First / Last seen
2025-05-19 21:20 · 2025-05-21 06:34
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.14.249.0/24

Risk Max 9 LOW Footprint 0.781% Hits 901
Prefix / IP version
/24 · IPv4
Network
3.14.249.0
Broadcast
3.14.249.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
901 hits · 6 errors
First / Last seen
2025-05-19 02:31 · 2025-05-21 19:23
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.16.112.0/24

Risk Max 9 LOW Footprint 0.781% Hits 845
Prefix / IP version
/24 · IPv4
Network
3.16.112.0
Broadcast
3.16.112.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.09920000000001 , -83.11409999999998
Hits / Errors
845 hits · 4 errors
First / Last seen
2025-05-19 18:26 · 2025-05-21 22:38
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.142.194.0/24

Risk Max 9 LOW Footprint 0.781% Hits 720
Prefix / IP version
/24 · IPv4
Network
3.142.194.0
Broadcast
3.142.194.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
720 hits · 0 errors
First / Last seen
2025-04-07 02:59 · 2025-04-10 23:27
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-04-07 → 2025-04-14 · Updated 2026-01-14 · v2

3.141.193.0/24

Risk Max 9 LOW Footprint 0.781% Hits 706
Prefix / IP version
/24 · IPv4
Network
3.141.193.0
Broadcast
3.141.193.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
706 hits · 4 errors
First / Last seen
2025-05-19 04:47 · 2025-05-22 02:38
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

3.141.38.0/24

Risk Max 9 LOW Footprint 0.781% Hits 623
Prefix / IP version
/24 · IPv4
Network
3.141.38.0
Broadcast
3.141.38.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
40.09920000000001 , -83.11409999999998
Hits / Errors
623 hits · 1 errors
First / Last seen
2025-05-19 01:25 · 2025-05-20 16:24
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

18.188.83.0/24

Risk Max 9 LOW Footprint 0.391% Hits 675
Prefix / IP version
/24 · IPv4
Network
18.188.83.0
Broadcast
18.188.83.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0992 , -83.1141
Hits / Errors
675 hits · 176 errors
First / Last seen
2025-05-26 05:33 · 2025-05-28 23:00
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2

3.149.255.0/24

Risk Max 9 LOW Footprint 0.391% Hits 610
Prefix / IP version
/24 · IPv4
Network
3.149.255.0
Broadcast
3.149.255.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.099199999999996 , -83.11410000000001
Hits / Errors
610 hits · 2 errors
First / Last seen
2025-05-19 02:37 · 2025-05-20 20:45
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

13.59.56.0/24

Risk Max 9 LOW Footprint 0.391% Hits 518
Prefix / IP version
/24 · IPv4
Network
13.59.56.0
Broadcast
13.59.56.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.09920000000001 , -83.11409999999998
Hits / Errors
518 hits · 4 errors
First / Last seen
2025-05-19 05:37 · 2025-05-21 19:36
Top ASN
AS16509 · Amazon.com, Inc.
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2
« First ‹ Prev
Page 1 of 131