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.
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Active filter:
Reston
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Snapshot
2026-01-21
Results
98
Page
3
/
3
15.204.206.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
15.204.206.0
Broadcast
15.204.206.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9609 , -77.3429
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-05-05 22:27 · 2025-05-05 22:27
Top ASN
AS16276 ·
OVH SAS
Top organization / ISP
OVH US LLC
·
OVH SAS
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-05-05 → 2025-05-12 · Updated
2026-01-14
· v2
Open report →
135.148.96.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
135.148.96.0
Broadcast
135.148.96.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9556 , -77.3651
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-05-05 18:25 · 2025-05-05 18:25
Top ASN
AS16276 ·
OVH SAS
Top organization / ISP
OVH US LLC
·
OVH SAS
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-05-05 → 2025-05-12 · Updated
2026-01-14
· v2
Open report →
147.0.228.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
147.0.228.0
Broadcast
147.0.228.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9586 , -77.357
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-05-05 16:33 · 2025-05-05 16:33
Top ASN
AS10796 ·
Charter Communications Inc
Top organization / ISP
Spectrum
·
Charter Communications Inc
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-05-05 → 2025-05-12 · Updated
2026-01-14
· v2
Open report →
51.81.39.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
51.81.39.0
Broadcast
51.81.39.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.958 , -77.3592
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-05-05 11:16 · 2025-05-05 11:16
Top ASN
AS16276 ·
OVH SAS
Top organization / ISP
OVH US LLC
·
OVH SAS
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-05-05 → 2025-05-12 · Updated
2026-01-14
· v2
Open report →
89.241.185.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
89.241.185.0
Broadcast
89.241.185.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
53.7668 , -2.7217
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-05-04 21:01 · 2025-05-04 21:01
Top ASN
AS13285 ·
TalkTalk Communications Limited
Top organization / ISP
TalkTalk Communications Limited
·
TalkTalk
Top geo
United Kingdom
·
England
·
Preston
Window / Updated
2025-04-28 → 2025-05-05 · Updated
2026-01-14
· v2
Open report →
135.148.8.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
135.148.8.0
Broadcast
135.148.8.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9556 , -77.3651
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-05-04 19:00 · 2025-05-04 19:00
Top ASN
AS16276 ·
OVH SAS
Top organization / ISP
OVH US LLC
·
OVH SAS
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-04-28 → 2025-05-05 · Updated
2026-01-14
· v2
Open report →
23.27.203.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
23.27.203.0
Broadcast
23.27.203.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9586 , -77.357
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-04-29 09:57 · 2025-04-29 09:57
Top ASN
AS40676 ·
Psychz Networks
Top organization / ISP
Ace Data Centers II, L.L.C.
·
Psychz Networks
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-04-28 → 2025-05-05 · Updated
2026-01-14
· v2
Open report →
136.0.120.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
136.0.120.0
Broadcast
136.0.120.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9586 , -77.357
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-04-27 15:59 · 2025-04-27 15:59
Top ASN
AS40676 ·
Psychz Networks
Top organization / ISP
Ace Data Centers II, L.L.C.
·
Psychz Networks
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-04-21 → 2025-04-28 · Updated
2026-01-14
· v2
Open report →
51.81.110.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
51.81.110.0
Broadcast
51.81.110.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.958 , -77.3592
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-03-03 05:45 · 2025-03-03 05:45
Top ASN
AS16276 ·
OVH SAS
Top organization / ISP
OVH US LLC
·
OVH SAS
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-03-03 → 2025-03-10 · Updated
2026-01-14
· v2
Open report →
152.32.183.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
152.32.183.0
Broadcast
152.32.183.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9609 , -77.3429
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-02-19 07:48 · 2025-02-19 07:48
Top ASN
AS135377 ·
UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
Top organization / ISP
Ucloud Information Technology
·
UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-02-17 → 2025-02-24 · Updated
2026-01-14
· v2
Open report →
203.109.60.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
203.109.60.0
Broadcast
203.109.60.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9609 , -77.3429
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-02-15 11:28 · 2025-02-15 11:28
Top ASN
AS207990 ·
HostRoyale Technologies Pvt Ltd
Top organization / ISP
truview LLC
·
HostRoyale Technologies Pvt Ltd
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-02-10 → 2025-02-17 · Updated
2026-01-14
· v2
Open report →
185.161.254.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
185.161.254.0
Broadcast
185.161.254.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9586 , -77.357
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-01-08 08:33 · 2025-01-08 08:33
Top ASN
AS401650 ·
888 Ventures LLC
Top organization / ISP
Internal
·
888 Ventures LLC
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2025-01-06 → 2025-01-13 · Updated
2026-01-14
· v2
Open report →
51.81.8.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
51.81.8.0
Broadcast
51.81.8.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.958 , -77.3592
Hits / Errors
1
hits ·
1
errors
First / Last seen
2024-01-15 22:13 · 2024-01-15 22:13
Top ASN
AS16276 ·
OVH SAS
Top organization / ISP
OVH US LLC
·
OVH SAS
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2024-01-15 → 2024-01-22 · Updated
2026-01-14
· v2
Open report →
101.36.98.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
101.36.98.0
Broadcast
101.36.98.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9609 , -77.3429
Hits / Errors
1
hits ·
0
errors
First / Last seen
2023-12-11 13:35 · 2023-12-11 13:35
Top ASN
AS135377 ·
UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
Top organization / ISP
Ucloud Information Technology
·
UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2023-12-11 → 2023-12-18 · Updated
2026-01-14
· v2
Open report →
152.32.238.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
152.32.238.0
Broadcast
152.32.238.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9609 , -77.3429
Hits / Errors
1
hits ·
0
errors
First / Last seen
2023-12-08 22:31 · 2023-12-08 22:31
Top ASN
AS135377 ·
UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
Top organization / ISP
Ucloud Information Technology (hk) Limited
·
UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2023-12-04 → 2023-12-11 · Updated
2026-01-14
· v2
Open report →
15.204.199.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
15.204.199.0
Broadcast
15.204.199.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9609 , -77.3429
Hits / Errors
1
hits ·
0
errors
First / Last seen
2023-11-22 12:41 · 2023-11-22 12:41
Top ASN
AS16276 ·
OVH SAS
Top organization / ISP
OVH US LLC
·
OVH SAS
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2023-11-20 → 2023-11-27 · Updated
2026-01-14
· v2
Open report →
77.103.156.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
77.103.156.0
Broadcast
77.103.156.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
53.7668 , -2.7217
Hits / Errors
1
hits ·
1
errors
First / Last seen
2023-11-21 12:35 · 2023-11-21 12:35
Top ASN
AS5089 ·
Virgin Media Limited
Top organization / ISP
Vmcbbuk
·
Virgin Media Limited
Top geo
United Kingdom
·
England
·
Preston
Window / Updated
2023-11-20 → 2023-11-27 · Updated
2026-01-14
· v2
Open report →
15.204.134.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
15.204.134.0
Broadcast
15.204.134.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
38.9609 , -77.3429
Hits / Errors
1
hits ·
1
errors
First / Last seen
2023-10-29 22:19 · 2023-10-29 22:19
Top ASN
AS16276 ·
OVH SAS
Top organization / ISP
OVH US LLC
·
OVH SAS
Top geo
United States
·
Virginia
·
Reston
Window / Updated
2023-10-23 → 2023-10-30 · Updated
2026-01-14
· v2
Open report →
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