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:
Utrecht
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Clear
Snapshot
2026-03-07
Results
20
Page
1
/
1
31.21.190.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
4
Prefix / IP version
/24 · IPv4
Network
31.21.190.0
Broadcast
31.21.190.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.1624 , 5.3691
Hits / Errors
4
hits ·
0
errors
First / Last seen
2026-02-24 02:00 · 2026-02-27 02:00
Top ASN
AS50266 ·
Odido Netherlands B.V.
Top organization / ISP
Odido Netherlands
·
Odido Netherlands B.V.
Top geo
Netherlands
·
Utrecht
·
Amersfoort
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
77.163.43.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
3
Prefix / IP version
/24 · IPv4
Network
77.163.43.0
Broadcast
77.163.43.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0765 , 5.0901
Hits / Errors
3
hits ·
0
errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V.
Top geo
The Netherlands
·
Utrecht
·
Utrecht
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
92.254.62.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
3
Prefix / IP version
/24 · IPv4
Network
92.254.62.0
Broadcast
92.254.62.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.1148 , 5.1211
Hits / Errors
3
hits ·
0
errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS50266 ·
Odido Netherlands B.V.
Top organization / ISP
T-mobile Netherlands bv
·
InterNLnet
Top geo
Netherlands
·
Utrecht
·
Utrecht
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
212.204.190.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
3
Prefix / IP version
/24 · IPv4
Network
212.204.190.0
Broadcast
212.204.190.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.1928 , 5.419900000000001
Hits / Errors
3
hits ·
0
errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS33915 ·
Vodafone Libertel B.V.
Top organization / ISP
— ·
Vodafone Ziggo
Top geo
The Netherlands
·
Utrecht
·
Amersfoort
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
86.86.121.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
3
Prefix / IP version
/24 · IPv4
Network
86.86.121.0
Broadcast
86.86.121.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.07399999999999 , 5.1197
Hits / Errors
3
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V.
Top geo
Netherlands
·
Utrecht
·
Utrecht
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
31.201.35.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
31.201.35.0
Broadcast
31.201.35.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.1079 , 5.0868
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS50266 ·
Odido Netherlands B.V.
Top organization / ISP
T-Mobile Thuis B.V.
·
T-mobile Thuis
Top geo
Netherlands
·
Utrecht
·
Utrecht
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
81.205.134.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
81.205.134.0
Broadcast
81.205.134.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0874 , 5.1168
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V
Top geo
Netherlands
·
Utrecht
·
Utrecht
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
82.174.199.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
82.174.199.0
Broadcast
82.174.199.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0253 , 5.0458
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS50266 ·
Odido Netherlands B.V.
Top organization / ISP
— ·
TMONL
Top geo
Netherlands
·
Utrecht
·
IJsselstein
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
77.172.43.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
77.172.43.0
Broadcast
77.172.43.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.1171 , 5.0942
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
FCN
Top geo
Netherlands
·
Utrecht
·
Utrecht
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
145.53.244.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
145.53.244.0
Broadcast
145.53.244.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0876 , 5.1409
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V.
Top geo
Netherlands
·
Utrecht
·
Utrecht
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
62.45.136.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
62.45.136.0
Broadcast
62.45.136.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0231 , 5.0448
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS15435 ·
DELTA Fiber Nederland B.V.
Top organization / ISP
CAIW Diensten BV
·
DELTA Fiber Nederland
Top geo
Netherlands
·
Utrecht
·
IJsselstein
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
77.171.114.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
77.171.114.0
Broadcast
77.171.114.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0223 , 5.1895
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V.
Top geo
The Netherlands
·
Utrecht
·
Houten
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
81.206.87.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
81.206.87.0
Broadcast
81.206.87.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.1379 , 5.496
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V
Top geo
Netherlands
·
Utrecht
·
Achterveld
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
82.168.190.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
82.168.190.0
Broadcast
82.168.190.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0505 , 5.0917
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V
Top geo
Netherlands
·
Utrecht
·
Nieuwegein
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
84.83.232.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
84.83.232.0
Broadcast
84.83.232.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.1424 , 5.3674
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V.
Top geo
Netherlands
·
Utrecht
·
Amersfoort
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
185.107.56.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
185.107.56.0
Broadcast
185.107.56.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
51.9725 , 4.94861
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS43350 ·
NForce Entertainment B.V.
Top organization / ISP
NForce Entertainment B.V
·
NFOrce Entertainment BV
Top geo
The Netherlands
·
Utrecht
·
Lopik
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
77.160.115.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
77.160.115.0
Broadcast
77.160.115.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0102 , 5.4257
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V.
Top geo
Netherlands
·
Utrecht
·
Leersum
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
80.61.51.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
80.61.51.0
Broadcast
80.61.51.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0748 , 4.8595
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS1136 ·
KPN B.V.
Top organization / ISP
— ·
KPN B.V.
Top geo
Netherlands
·
Utrecht
·
Woerden
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
145.131.226.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
145.131.226.0
Broadcast
145.131.226.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.0775 , 5.0599
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS28685 ·
Routit BV
Top organization / ISP
RoutIT
·
Routit BV
Top geo
Netherlands
·
Utrecht
·
Utrecht
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
80.114.107.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
80.114.107.0
Broadcast
80.114.107.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
52.1216 , 5.1045
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS33915 ·
Vodafone Libertel B.V.
Top organization / ISP
Ziggo CM
·
Vodafone Libertel B.V.
Top geo
Netherlands
·
Utrecht
·
Utrecht
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
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