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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: Bethesda · Clear
Snapshot 2026-01-20 Results 10 Page 1 / 1

108.51.165.0/24

Risk Max 2 LOW Footprint 0.391% Hits 6
Prefix / IP version
/24 · IPv4
Network
108.51.165.0
Broadcast
108.51.165.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.9893 , -77.1586
Hits / Errors
6 hits · 4 errors
First / Last seen
2025-01-11 05:00 · 2025-01-11 05:00
Top ASN
AS701 · Verizon Business
Top organization / ISP
MCI Communications Services, Inc. d/b/a Verizon Business · Verizon Communications
Top geo
United States · Maryland · Bethesda
Window / Updated
2025-01-06 → 2025-01-13 · Updated 2026-01-14 · v2
Open report →

108.48.3.0/24

Risk Max — LOW Footprint 0.391% Hits 44
Prefix / IP version
/24 · IPv4
Network
108.48.3.0
Broadcast
108.48.3.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.9893 , -77.1586
Hits / Errors
44 hits · 1 errors
First / Last seen
2025-05-22 20:39 · 2025-05-22 20:40
Top ASN
AS701 · Verizon Business
Top organization / ISP
MCI Communications Services, Inc. d/b/a Verizon Business · Verizon Communications
Top geo
United States · Maryland · Bethesda
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2
Open report →

73.129.154.0/24

Risk Max — LOW Footprint 0.391% Hits 28
Prefix / IP version
/24 · IPv4
Network
73.129.154.0
Broadcast
73.129.154.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0015 , -77.0961
Hits / Errors
28 hits · 5 errors
First / Last seen
2024-05-08 05:25 · 2024-05-08 05:29
Top ASN
AS7922 · Comcast Cable Communications, LLC
Top organization / ISP
Comcast IP Services, L.L.C. · Comcast Cable Communications
Top geo
United States · Maryland · Bethesda
Window / Updated
2024-05-06 → 2024-05-13 · Updated 2026-01-14 · v2
Open report →

108.31.49.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
108.31.49.0
Broadcast
108.31.49.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0015 , -77.0961
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-09-17 03:54 · 2025-09-17 03:54
Top ASN
AS701 · Verizon Business
Top organization / ISP
Verizon Online LLC · Verizon Business
Top geo
United States · Maryland · Bethesda
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2
Open report →

71.163.181.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
71.163.181.0
Broadcast
71.163.181.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.9893 , -77.1586
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-22 19:27 · 2025-05-22 19:27
Top ASN
AS701 · Verizon Business
Top organization / ISP
Verizon Business · Verizon Business
Top geo
United States · Maryland · Bethesda
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2
Open report →

108.31.158.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
108.31.158.0
Broadcast
108.31.158.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.9893 , -77.1586
Hits / Errors
2 hits · 1 errors
First / Last seen
2024-02-16 16:45 · 2024-02-16 16:45
Top ASN
AS701 · Verizon Business
Top organization / ISP
MCI Communications Services, Inc. d/b/a Verizon Business · Verizon Communications
Top geo
United States · Maryland · Bethesda
Window / Updated
2024-02-12 → 2024-02-19 · Updated 2026-01-14 · v2
Open report →

72.83.144.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
72.83.144.0
Broadcast
72.83.144.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.9618 , -77.1193
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-12-01 21:39 · 2025-12-01 21:39
Top ASN
AS701 · Verizon Business
Top organization / ISP
MCI Communications Services, Inc. d/b/a Verizon Business · Verizon Communications
Top geo
United States · Maryland · Bethesda
Window / Updated
2025-12-01 → 2025-12-08 · Updated 2026-01-14 · v2
Open report →

208.185.39.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
208.185.39.0
Broadcast
208.185.39.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0015 , -77.0961
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-09-15 18:30 · 2025-09-15 18:30
Top ASN
AS6461 · Zayo Bandwidth
Top organization / ISP
Zayo Bandwidth · Zayo Bandwidth
Top geo
United States · Maryland · Bethesda
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2
Open report →

108.18.141.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
108.18.141.0
Broadcast
108.18.141.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.0015 , -77.0961
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-02 20:45 · 2025-08-02 20:45
Top ASN
AS701 · Verizon Business
Top organization / ISP
Verizon Online LLC · Verizon Business
Top geo
United States · Maryland · Bethesda
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

71.191.144.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
71.191.144.0
Broadcast
71.191.144.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.9893 , -77.1586
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-04-04 10:17 · 2025-04-04 10:17
Top ASN
AS701 · Verizon Business
Top organization / ISP
MCI Communications Services, Inc. d/b/a Verizon Business · Verizon Communications
Top geo
United States · Maryland · Bethesda
Window / Updated
2025-03-31 → 2025-04-07 · Updated 2026-01-14 · v2
Open report →