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.
Search
Active filter:
Charles River Operation
·
Clear
Snapshot
2026-01-21
Results
13
Page
1
/
1
63.246.157.0/24
Risk Max
—
LOW
Footprint
0.781
%
Hits
11
Prefix / IP version
/24 · IPv4
Network
63.246.157.0
Broadcast
63.246.157.255
Observed IPs / Subnet size
2
observed ·
256
total
Centroid
42.360099999999996 , -71.0589
Hits / Errors
11
hits ·
1
errors
First / Last seen
2025-11-06 22:43 · 2025-11-06 23:46
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
Wired ISP Inc
·
Charles River Operation
Top geo
United States
·
Massachusetts
·
Boston
Window / Updated
2025-11-03 → 2025-11-10 · Updated
2026-01-14
· v2
Open report →
207.32.133.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
4
Prefix / IP version
/24 · IPv4
Network
207.32.133.0
Broadcast
207.32.133.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
40.7493 , -73.9697
Hits / Errors
4
hits ·
0
errors
First / Last seen
2025-01-15 09:05 · 2025-01-15 09:05
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
— ·
Charles River Operation
Top geo
United States
·
New York
·
New York
Window / Updated
2025-01-13 → 2025-01-20 · Updated
2026-01-14
· v2
Open report →
45.67.143.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
4
Prefix / IP version
/24 · IPv4
Network
45.67.143.0
Broadcast
45.67.143.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9609 , -77.3429
Hits / Errors
4
hits ·
0
errors
First / Last seen
2024-12-26 17:33 · 2024-12-26 17:33
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
Alphatech Resource Holdings s.r.o
·
Charles River Operation
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2024-12-23 → 2024-12-30 · Updated
2026-01-14
· v2
Open report →
154.3.129.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
3
Prefix / IP version
/24 · IPv4
Network
154.3.129.0
Broadcast
154.3.129.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
42.366 , -71.2271
Hits / Errors
3
hits ·
2
errors
First / Last seen
2025-01-26 22:28 · 2025-01-26 22:28
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
Charles River Operation
·
Charles River Operation
Top geo
United States
·
Massachusetts
·
Waltham
Window / Updated
2025-01-20 → 2025-01-27 · Updated
2026-01-14
· v2
Open report →
67.22.62.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
67.22.62.0
Broadcast
67.22.62.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
39.011 , -77.4711
Hits / Errors
2
hits ·
0
errors
First / Last seen
2025-03-04 22:37 · 2025-03-04 22:37
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
MCI Communications Services, Inc. d/b/a Verizon Business
·
CloudIP LLC
Top geo
United States
·
Virginia
·
Ashburn
Window / Updated
2025-03-03 → 2025-03-10 · Updated
2026-01-14
· v2
Open report →
45.67.142.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
45.67.142.0
Broadcast
45.67.142.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9609 , -77.3429
Hits / Errors
2
hits ·
0
errors
First / Last seen
2025-01-15 17:13 · 2025-01-15 17:13
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
Wired ISP Inc
·
Charles River Operation
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-01-13 → 2025-01-20 · Updated
2026-01-14
· v2
Open report →
207.32.132.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
207.32.132.0
Broadcast
207.32.132.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
40.7493 , -73.9697
Hits / Errors
2
hits ·
0
errors
First / Last seen
2025-01-15 14:18 · 2025-01-15 14:18
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
— ·
Charles River Operation
Top geo
United States
·
New York
·
New York
Window / Updated
2025-01-13 → 2025-01-20 · Updated
2026-01-14
· v2
Open report →
207.32.143.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
207.32.143.0
Broadcast
207.32.143.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
40.7493 , -73.9697
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-12-17 17:28 · 2025-12-17 17:28
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
— ·
Charles River Operation
Top geo
United States
·
New York
·
New York
Window / Updated
2025-12-15 → 2025-12-22 · Updated
2026-01-14
· v2
Open report →
207.32.152.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
207.32.152.0
Broadcast
207.32.152.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
40.7493 , -73.9697
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-28 07:43 · 2025-09-28 07:43
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
— ·
Charles River Operation
Top geo
United States
·
New York
·
New York
Window / Updated
2025-09-22 → 2025-09-29 · Updated
2026-01-14
· v2
Open report →
207.32.131.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
207.32.131.0
Broadcast
207.32.131.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
40.7493 , -73.9697
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-08-13 11:10 · 2025-08-13 11:10
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
— ·
Charles River Operation
Top geo
United States
·
New York
·
New York
Window / Updated
2025-08-11 → 2025-08-18 · Updated
2026-01-14
· v2
Open report →
38.146.57.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
38.146.57.0
Broadcast
38.146.57.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
42.366 , -71.2271
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-02-15 23:14 · 2025-02-15 23:14
Top ASN
AS174 ·
Cogent Communications, LLC
Top organization / ISP
Charles River Operation
·
Cogent Communications
Top geo
United States
·
Massachusetts
·
Waltham
Window / Updated
2025-02-10 → 2025-02-17 · Updated
2026-01-14
· v2
Open report →
207.32.155.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
207.32.155.0
Broadcast
207.32.155.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
40.7493 , -73.9697
Hits / Errors
1
hits ·
1
errors
First / Last seen
2025-02-06 20:36 · 2025-02-06 20:36
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
— ·
Charles River Operation
Top geo
United States
·
New York
·
New York
Window / Updated
2025-02-03 → 2025-02-10 · Updated
2026-01-14
· v2
Open report →
207.32.139.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
207.32.139.0
Broadcast
207.32.139.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
40.7493 , -73.9697
Hits / Errors
1
hits ·
1
errors
First / Last seen
2025-02-06 20:36 · 2025-02-06 20:36
Top ASN
AS64249 ·
Charles River Operation
Top organization / ISP
— ·
Charles River Operation
Top geo
United States
·
New York
·
New York
Window / Updated
2025-02-03 → 2025-02-10 · Updated
2026-01-14
· v2
Open report →
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