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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.

172.56.171.0/24

Risk Max LOW Footprint 1.562% Hits 6
Prefix / IP version
/24 · IPv4
Network
172.56.171.0
Broadcast
172.56.171.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
38.482 , -121.4015
Hits / Errors
6 hits · 1 errors
First / Last seen
2025-05-05 05:12 · 2025-05-05 16:04
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

172.56.170.0/24

Risk Max LOW Footprint 1.172% Hits 4
Prefix / IP version
/24 · IPv4
Network
172.56.170.0
Broadcast
172.56.170.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
38.482 , -121.4015
Hits / Errors
4 hits · 0 errors
First / Last seen
2025-05-05 01:00 · 2025-05-05 16:43
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

146.75.154.0/24

Risk Max LOW Footprint 0.781% Hits 6
Prefix / IP version
/24 · IPv4
Network
146.75.154.0
Broadcast
146.75.154.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
38.581 , -121.4939
Hits / Errors
6 hits · 2 errors
First / Last seen
2024-11-27 02:06 · 2024-11-27 02:27
Top ASN
AS54113 · Fastly, Inc.
Top organization / ISP
Window / Updated
2024-11-25 → 2024-12-02 · Updated 2026-01-14 · v2

73.185.125.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
73.185.125.0
Broadcast
73.185.125.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
38.5816 , -121.494
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-05 03:23 · 2025-05-05 21:44
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

12.74.244.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
12.74.244.0
Broadcast
12.74.244.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
43.093900000000005 , -121.913
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-04 22:27 · 2025-05-04 23:15
Top ASN
Top organization / ISP
Window / Updated
2025-04-28 → 2025-05-05 · Updated 2026-01-14 · v2

172.226.212.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
172.226.212.0
Broadcast
172.226.212.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
38.581 , -121.4939
Hits / Errors
2 hits · 0 errors
First / Last seen
2024-12-05 02:44 · 2024-12-05 03:29
Top ASN
Window / Updated
2024-12-02 → 2024-12-09 · Updated 2026-01-14 · v2

107.116.89.0/24

Risk Max LOW Footprint 0.391% Hits 65
Prefix / IP version
/24 · IPv4
Network
107.116.89.0
Broadcast
107.116.89.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6096 , -121.4443
Hits / Errors
65 hits · 11 errors
First / Last seen
2024-05-04 15:37 · 2024-05-05 01:24
Top ASN
Top organization / ISP
Window / Updated
2024-04-29 → 2024-05-06 · Updated 2026-01-14 · v2

73.90.4.0/24

Risk Max LOW Footprint 0.391% Hits 39
Prefix / IP version
/24 · IPv4
Network
73.90.4.0
Broadcast
73.90.4.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6645 , -121.48699999999998
Hits / Errors
39 hits · 0 errors
First / Last seen
2025-02-21 08:19 · 2025-02-21 08:21
Window / Updated
2025-02-17 → 2025-02-24 · Updated 2026-01-14 · v2

97.191.238.0/24

Risk Max LOW Footprint 0.391% Hits 36
Prefix / IP version
/24 · IPv4
Network
97.191.238.0
Broadcast
97.191.238.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6645 , -121.48700000000001
Hits / Errors
36 hits · 5 errors
First / Last seen
2024-05-27 21:36 · 2024-05-27 21:43
Top ASN
AS6167 · Verizon Business
Top organization / ISP
Window / Updated
2024-05-27 → 2024-06-03 · Updated 2026-01-14 · v2

73.220.133.0/24

Risk Max LOW Footprint 0.391% Hits 34
Prefix / IP version
/24 · IPv4
Network
73.220.133.0
Broadcast
73.220.133.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.4965 , -121.53480000000002
Hits / Errors
34 hits · 0 errors
First / Last seen
2025-05-21 13:53 · 2025-05-21 13:53
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

98.255.77.0/24

Risk Max LOW Footprint 0.391% Hits 32
Prefix / IP version
/24 · IPv4
Network
98.255.77.0
Broadcast
98.255.77.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5639 , -121.4418
Hits / Errors
32 hits · 0 errors
First / Last seen
2025-02-26 02:57 · 2025-02-26 02:58
Window / Updated
2025-02-24 → 2025-03-03 · Updated 2026-01-14 · v2

156.47.87.0/24

Risk Max LOW Footprint 0.391% Hits 32
Prefix / IP version
/24 · IPv4
Network
156.47.87.0
Broadcast
156.47.87.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5824 , -121.3736
Hits / Errors
32 hits · 0 errors
First / Last seen
2025-02-02 21:22 · 2025-02-02 22:21
Top ASN
AS14051 · Fidium
Window / Updated
2025-01-27 → 2025-02-03 · Updated 2026-01-14 · v2

172.56.169.0/24

Risk Max LOW Footprint 0.391% Hits 28
Prefix / IP version
/24 · IPv4
Network
172.56.169.0
Broadcast
172.56.169.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.482000000000006 , -121.40150000000001
Hits / Errors
28 hits · 0 errors
First / Last seen
2025-03-14 18:55 · 2025-03-14 18:55
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
Window / Updated
2025-03-10 → 2025-03-17 · Updated 2026-01-14 · v2

104.28.123.0/24

Risk Max LOW Footprint 0.391% Hits 26
Prefix / IP version
/24 · IPv4
Network
104.28.123.0
Broadcast
104.28.123.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.581 , -121.4939
Hits / Errors
26 hits · 2 errors
First / Last seen
2024-12-05 01:54 · 2024-12-05 02:24
Top ASN
AS13335 · Cloudflare, Inc.
Top organization / ISP
Window / Updated
2024-12-02 → 2024-12-09 · Updated 2026-01-14 · v2

73.116.150.0/24

Risk Max LOW Footprint 0.391% Hits 24
Prefix / IP version
/24 · IPv4
Network
73.116.150.0
Broadcast
73.116.150.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.4799 , -121.44509999999998
Hits / Errors
24 hits · 0 errors
First / Last seen
2025-05-22 09:22 · 2025-05-22 09:22
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

67.159.139.0/24

Risk Max LOW Footprint 0.391% Hits 22
Prefix / IP version
/24 · IPv4
Network
67.159.139.0
Broadcast
67.159.139.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5879 , -121.4053
Hits / Errors
22 hits · 4 errors
First / Last seen
2025-08-10 01:43 · 2025-08-10 01:44
Top ASN
AS14051 · Fidium
Window / Updated
2025-08-04 → 2025-08-11 · Updated 2026-01-14 · v2

67.172.189.0/24

Risk Max LOW Footprint 0.391% Hits 20
Prefix / IP version
/24 · IPv4
Network
67.172.189.0
Broadcast
67.172.189.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6353 , -121.4558
Hits / Errors
20 hits · 0 errors
First / Last seen
2025-06-23 23:31 · 2025-06-23 23:32
Window / Updated
2025-06-23 → 2025-06-30 · Updated 2026-01-14 · v2

98.41.126.0/24

Risk Max LOW Footprint 0.391% Hits 19
Prefix / IP version
/24 · IPv4
Network
98.41.126.0
Broadcast
98.41.126.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5879 , -121.4053
Hits / Errors
19 hits · 1 errors
First / Last seen
2025-01-29 01:00 · 2025-01-29 01:00
Window / Updated
2025-01-27 → 2025-02-03 · Updated 2026-01-14 · v2

152.79.9.0/24

Risk Max LOW Footprint 0.391% Hits 18
Prefix / IP version
/24 · IPv4
Network
152.79.9.0
Broadcast
152.79.9.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5662 , -121.55249999999998
Hits / Errors
18 hits · 0 errors
First / Last seen
2025-05-20 19:01 · 2025-05-20 19:03
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

66.60.144.0/24

Risk Max LOW Footprint 0.391% Hits 18
Prefix / IP version
/24 · IPv4
Network
66.60.144.0
Broadcast
66.60.144.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5824 , -121.3736
Hits / Errors
18 hits · 1 errors
First / Last seen
2025-01-14 00:21 · 2025-01-14 00:23
Top ASN
AS14051 · Fidium
Window / Updated
2025-01-13 → 2025-01-20 · Updated 2026-01-14 · v2

174.208.97.0/24

Risk Max LOW Footprint 0.391% Hits 18
Prefix / IP version
/24 · IPv4
Network
174.208.97.0
Broadcast
174.208.97.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5879 , -121.4053
Hits / Errors
18 hits · 2 errors
First / Last seen
2024-11-19 10:21 · 2024-11-19 11:00
Top ASN
AS6167 · Verizon Business
Top organization / ISP
Window / Updated
2024-11-18 → 2024-11-25 · Updated 2026-01-14 · v2

162.2.108.0/24

Risk Max LOW Footprint 0.391% Hits 17
Prefix / IP version
/24 · IPv4
Network
162.2.108.0
Broadcast
162.2.108.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5639 , -121.4418
Hits / Errors
17 hits · 0 errors
First / Last seen
2025-02-22 06:18 · 2025-02-22 06:24
Window / Updated
2025-02-17 → 2025-02-24 · Updated 2026-01-14 · v2

73.2.84.0/24

Risk Max LOW Footprint 0.391% Hits 16
Prefix / IP version
/24 · IPv4
Network
73.2.84.0
Broadcast
73.2.84.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6226 , -121.3885
Hits / Errors
16 hits · 3 errors
First / Last seen
2024-04-25 10:43 · 2024-04-25 10:44
Window / Updated
2024-04-22 → 2024-04-29 · Updated 2026-01-14 · v2

149.136.17.0/24

Risk Max LOW Footprint 0.391% Hits 15
Prefix / IP version
/24 · IPv4
Network
149.136.17.0
Broadcast
149.136.17.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.4689 , -121.344
Hits / Errors
15 hits · 0 errors
First / Last seen
2025-05-08 23:45 · 2025-05-08 23:46
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

205.155.143.0/24

Risk Max LOW Footprint 0.391% Hits 15
Prefix / IP version
/24 · IPv4
Network
205.155.143.0
Broadcast
205.155.143.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5817 , -121.49500000000002
Hits / Errors
15 hits · 0 errors
First / Last seen
2025-02-04 21:13 · 2025-02-04 21:15
Top ASN
AS2152 · CENIC
Top organization / ISP
Window / Updated
2025-02-03 → 2025-02-10 · Updated 2026-01-14 · v2

67.161.162.0/24

Risk Max LOW Footprint 0.391% Hits 14
Prefix / IP version
/24 · IPv4
Network
67.161.162.0
Broadcast
67.161.162.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.687 , -121.3477
Hits / Errors
14 hits · 2 errors
First / Last seen
2024-09-08 23:51 · 2024-09-08 23:54
Window / Updated
2024-09-02 → 2024-09-09 · Updated 2026-01-14 · v2

97.191.217.0/24

Risk Max LOW Footprint 0.391% Hits 13
Prefix / IP version
/24 · IPv4
Network
97.191.217.0
Broadcast
97.191.217.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6096 , -121.44430000000001
Hits / Errors
13 hits · 1 errors
First / Last seen
2024-12-18 11:32 · 2024-12-18 11:33
Top ASN
AS6167 · Verizon Business
Top organization / ISP
Window / Updated
2024-12-16 → 2024-12-23 · Updated 2026-01-14 · v2

172.226.36.0/24

Risk Max LOW Footprint 0.391% Hits 10
Prefix / IP version
/24 · IPv4
Network
172.226.36.0
Broadcast
172.226.36.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.581 , -121.49389999999998
Hits / Errors
10 hits · 2 errors
First / Last seen
2024-11-27 01:49 · 2024-11-27 01:52
Top ASN
Window / Updated
2024-11-25 → 2024-12-02 · Updated 2026-01-14 · v2

73.48.180.0/24

Risk Max LOW Footprint 0.391% Hits 6
Prefix / IP version
/24 · IPv4
Network
73.48.180.0
Broadcast
73.48.180.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5816 , -121.49399999999999
Hits / Errors
6 hits · 0 errors
First / Last seen
2025-02-25 06:56 · 2025-03-01 17:26
Window / Updated
2025-02-24 → 2025-03-03 · Updated 2026-01-14 · v2

99.57.79.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
99.57.79.0
Broadcast
99.57.79.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.687 , -121.3477
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-10-08 22:33 · 2025-10-08 22:38
Top ASN
Top organization / ISP
Window / Updated
2025-10-06 → 2025-10-13 · Updated 2026-01-14 · v2

104.28.124.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
104.28.124.0
Broadcast
104.28.124.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.581 , -121.4939
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-09-21 01:44 · 2025-09-21 01:44
Top ASN
AS13335 · Cloudflare, Inc.
Top organization / ISP
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2

75.234.194.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
75.234.194.0
Broadcast
75.234.194.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.687 , -121.3477
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-08-02 23:32 · 2025-08-02 23:32
Top ASN
AS22394 · Verizon Business
Top organization / ISP
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

73.48.204.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
73.48.204.0
Broadcast
73.48.204.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.4965 , -121.5348
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-08-02 22:51 · 2025-08-02 22:51
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

108.65.168.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
108.65.168.0
Broadcast
108.65.168.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.5674 , -121.32
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-07-31 22:42 · 2025-07-31 22:42
Top ASN
Top organization / ISP
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2

98.41.249.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
98.41.249.0
Broadcast
98.41.249.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.482 , -121.4015
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 18:15 · 2025-05-23 18:15
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

98.244.43.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
98.244.43.0
Broadcast
98.244.43.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6226 , -121.3885
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 17:21 · 2025-05-23 17:21
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

97.136.21.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
97.136.21.0
Broadcast
97.136.21.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6645 , -121.487
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 16:14 · 2025-05-23 16:14
Top ASN
AS6167 · Verizon Business
Top organization / ISP
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

98.56.236.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
98.56.236.0
Broadcast
98.56.236.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.482 , -121.4015
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 15:16 · 2025-05-23 15:16
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

104.54.83.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
104.54.83.0
Broadcast
104.54.83.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6353 , -121.4558
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 12:49 · 2025-05-23 12:49
Top ASN
Top organization / ISP
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

73.41.204.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
73.41.204.0
Broadcast
73.41.204.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.6226 , -121.3885
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 09:18 · 2025-05-23 09:18
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2
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