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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.
Active filter: Mountain View · Clear
Snapshot 2026-03-11 Results 21 Page 1 / 1

66.249.66.0/24

Risk Max 1 LOW Footprint 10.156% Hits 144
Prefix / IP version
/24 · IPv4
Network
66.249.66.0
Broadcast
66.249.66.255
Observed IPs / Subnet size
26 observed · 256 total
Centroid
38.52659722222222 , -105.8997222222222
Hits / Errors
144 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

72.14.199.0/24

Risk Max 1 LOW Footprint 2.734% Hits 85
Prefix / IP version
/24 · IPv4
Network
72.14.199.0
Broadcast
72.14.199.255
Observed IPs / Subnet size
7 observed · 256 total
Centroid
37.42250000000001 , -122.08499999999998
Hits / Errors
85 hits · 13 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.249.64.0/24

Risk Max 1 LOW Footprint 1.953% Hits 98
Prefix / IP version
/24 · IPv4
Network
66.249.64.0
Broadcast
66.249.64.255
Observed IPs / Subnet size
5 observed · 256 total
Centroid
37.4225 , -122.085
Hits / Errors
98 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.249.68.0/24

Risk Max 1 LOW Footprint 1.562% Hits 138
Prefix / IP version
/24 · IPv4
Network
66.249.68.0
Broadcast
66.249.68.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
37.42249999999999 , -122.085
Hits / Errors
138 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.249.77.0/24

Risk Max 1 LOW Footprint 1.172% Hits 71
Prefix / IP version
/24 · IPv4
Network
66.249.77.0
Broadcast
66.249.77.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
37.4225 , -122.085
Hits / Errors
71 hits · 2 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.249.88.0/24

Risk Max — LOW Footprint 2.734% Hits 14
Prefix / IP version
/24 · IPv4
Network
66.249.88.0
Broadcast
66.249.88.255
Observed IPs / Subnet size
7 observed · 256 total
Centroid
37.4225 , -122.08500000000001
Hits / Errors
14 hits · 14 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.249.93.0/24

Risk Max — LOW Footprint 2.344% Hits 46
Prefix / IP version
/24 · IPv4
Network
66.249.93.0
Broadcast
66.249.93.255
Observed IPs / Subnet size
6 observed · 256 total
Centroid
37.4225 , -122.085
Hits / Errors
46 hits · 46 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

64.233.173.0/24

Risk Max — LOW Footprint 1.953% Hits 9
Prefix / IP version
/24 · IPv4
Network
64.233.173.0
Broadcast
64.233.173.255
Observed IPs / Subnet size
5 observed · 256 total
Centroid
37.422 , -122.084
Hits / Errors
9 hits · 9 errors
First / Last seen
2026-02-25 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.249.71.0/24

Risk Max — LOW Footprint 1.953% Hits 5
Prefix / IP version
/24 · IPv4
Network
66.249.71.0
Broadcast
66.249.71.255
Observed IPs / Subnet size
5 observed · 256 total
Centroid
32.08714 , -25.029799999999998
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-24 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.249.65.0/24

Risk Max — LOW Footprint 1.562% Hits 36
Prefix / IP version
/24 · IPv4
Network
66.249.65.0
Broadcast
66.249.65.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
37.42249999999999 , -122.08500000000001
Hits / Errors
36 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

74.125.215.0/24

Risk Max — LOW Footprint 1.562% Hits 10
Prefix / IP version
/24 · IPv4
Network
74.125.215.0
Broadcast
74.125.215.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
37.4225 , -122.08500000000001
Hits / Errors
10 hits · 9 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

192.178.6.0/24

Risk Max — LOW Footprint 1.172% Hits 35
Prefix / IP version
/24 · IPv4
Network
192.178.6.0
Broadcast
192.178.6.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
37.42250000000001 , -122.08499999999998
Hits / Errors
35 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

192.178.15.0/24

Risk Max — LOW Footprint 1.172% Hits 6
Prefix / IP version
/24 · IPv4
Network
192.178.15.0
Broadcast
192.178.15.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
37.4225 , -122.085
Hits / Errors
6 hits · 6 errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.102.9.0/24

Risk Max — LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
66.102.9.0
Broadcast
66.102.9.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
45.004633333333324 , -73.07653333333333
Hits / Errors
3 hits · 3 errors
First / Last seen
2026-02-24 02:00 · 2026-03-01 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.249.74.0/24

Risk Max — LOW Footprint 0.781% Hits 17
Prefix / IP version
/24 · IPv4
Network
66.249.74.0
Broadcast
66.249.74.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
37.4225 , -122.08499999999998
Hits / Errors
17 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-24 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.102.8.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
66.102.8.0
Broadcast
66.102.8.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
37.422 , -122.084
Hits / Errors
2 hits · 2 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

34.116.39.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
34.116.39.0
Broadcast
34.116.39.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
37.4225 , -122.085
Hits / Errors
2 hits · 1 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS396982 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

192.178.8.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
192.178.8.0
Broadcast
192.178.8.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4225 , -122.085
Hits / Errors
2 hits · 2 errors
First / Last seen
2026-02-22 02:00 · 2026-02-24 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

73.158.255.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
73.158.255.0
Broadcast
73.158.255.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.3859 , -122.0882
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
AS7922 · Comcast Cable Communications, LLC
Top organization / ISP
Comcast IP Services, L.L.C. · Comcast Cable Communications
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

66.249.81.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
66.249.81.0
Broadcast
66.249.81.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.4225 , -122.085
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS15169 · Google LLC
Top organization / ISP
Google LLC · Google LLC
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

73.92.125.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
73.92.125.0
Broadcast
73.92.125.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.3897 , -122.0832
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS7922 · Comcast Cable Communications, LLC
Top organization / ISP
Comcast IP Services, L.L.C. · Comcast Cable Communications
Top geo
United States · California · Mountain View
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →