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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: OPTIC · Clear
Snapshot 2026-03-04 Results 227 Page 6 / 6

91.137.249.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
91.137.249.0
Broadcast
91.137.249.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
46.5691 , 20.6662
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS212910 · Oros-Com Ltd.
Top organization / ISP
Opticon Telekomminokacios Szolgaltato Kft. · Opticon Telecommunications Ltd.
Top geo
Hungary · Bekes County · Orosháza
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

103.136.74.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
103.136.74.0
Broadcast
103.136.74.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
23.1312 , 73.6176
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS138671 · SAHYOG OPTIC PVT. LTD.
Top organization / ISP
Sahyog Optic Pvt. Ltd. · Sahyog Optic Pvt. LTD
Top geo
India · Gujarat · Lūnāvāda
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.121.154.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.121.154.0
Broadcast
109.121.154.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.7631 , 23.1973
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS39246 · Liulin Net Ltd.
Top organization / ISP
Lyulinnet · Optical Structural Network Ltd.
Top geo
Bulgaria · Sofia · Bozhurishte
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.121.168.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.121.168.0
Broadcast
109.121.168.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.6826 , 23.3223
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS39246 · Liulin Net Ltd.
Top organization / ISP
Lyulinnet · Optical Structural Network Ltd.
Top geo
Bulgaria · Sofia-Capital · Sofia
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

112.68.224.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
112.68.224.0
Broadcast
112.68.224.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.7699 , 135.5171
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS17511 · OPTAGE Inc.
Top organization / ISP
K-Opticom Corporation · OPTAGE Inc.
Top geo
Japan · Osaka · Suita
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

119.231.46.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
119.231.46.0
Broadcast
119.231.46.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.8199 , 135.6469
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS17511 · OPTAGE Inc.
Top organization / ISP
K-Opticom Corporation · OPTAGE Inc.
Top geo
Japan · Osaka · Hirakata
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

185.184.174.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
185.184.174.0
Broadcast
185.184.174.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.2624 , -5.5449
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS29119 · AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL
Top organization / ISP
— · Qtal On Fibra Optica S.L
Top geo
Spain · Andalusia · El Arahal
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

47.188.46.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.188.46.0
Broadcast
47.188.46.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.0809 , -96.7241
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS5650 · Frontier Communications of America, Inc.
Top organization / ISP
FTR3 FiberOptic-D Plano TX · Frontier Communications Solutions
Top geo
United States · Texas · Plano
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

47.197.90.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.197.90.0
Broadcast
47.197.90.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
27.7963 , -82.6325
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS5650 · Frontier Communications of America, Inc.
Top organization / ISP
FTR3 FiberOptic-D Saint Petersburg FL · Frontier Communications Solutions
Top geo
United States · Florida · St. Petersburg
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

58.188.232.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
58.188.232.0
Broadcast
58.188.232.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6753 , 133.751
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS17511 · OPTAGE Inc.
Top organization / ISP
K-Opticom Corporation · OPTAGE Inc.
Top geo
Japan · Okayama · Sōja
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.76.147.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
77.76.147.0
Broadcast
77.76.147.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.4596 , 24.2574
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS34295 · Geo BG Net SPLtd.
Top organization / ISP
— · Simoptic
Top geo
Bulgaria · Pleven · Iskar
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

91.137.250.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
91.137.250.0
Broadcast
91.137.250.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
46.5691 , 20.6662
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS212910 · Oros-Com Ltd.
Top organization / ISP
— · Opticon Telecommunications Ltd
Top geo
Hungary · Bekes County · Orosháza
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

94.236.224.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
94.236.224.0
Broadcast
94.236.224.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.6826 , 23.3223
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS42555 · OPTICCOM- BULGARIA Ltd.
Top organization / ISP
— · Lozenec Lan
Top geo
Bulgaria · Sofia-Capital · Sofia
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

119.229.45.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
119.229.45.0
Broadcast
119.229.45.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.6892 , 135.4899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS17511 · OPTAGE Inc.
Top organization / ISP
K-Opticom Corporation · OPTAGE Inc.
Top geo
Japan · Osaka · Osaka
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

119.230.17.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
119.230.17.0
Broadcast
119.230.17.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.7403 , 135.5862
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS17511 · OPTAGE Inc.
Top organization / ISP
K-Opticom Corporation · OPTAGE Inc.
Top geo
Japan · Osaka · Kadoma
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

121.85.103.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
121.85.103.0
Broadcast
121.85.103.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.0104 , 135.8707
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS17511 · OPTAGE Inc.
Top organization / ISP
K-Opticom Corporation · OPTAGE Inc.
Top geo
Japan · Shiga · Ōtsu
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

137.220.69.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
137.220.69.0
Broadcast
137.220.69.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4959 , -0.2245
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd. · Hyperoptic Ltd.
Top geo
United Kingdom · England · London
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

137.220.79.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
137.220.79.0
Broadcast
137.220.79.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4959 , -0.2245
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd. · Hyperoptic Ltd.
Top geo
United Kingdom · England · London
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

138.117.224.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
138.117.224.0
Broadcast
138.117.224.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.3516 , -46.8811
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS270660 · Infinity Web Fibra Optica Ltda
Top organization / ISP
Infinity Web Fibra Optica Ltda · Infinity Web Fibra Optica Ltda
Top geo
Brazil · São Paulo · Cajamar
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

143.58.203.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
143.58.203.0
Broadcast
143.58.203.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.4805 , -0.0113
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Greenwich
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

188.214.10.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
188.214.10.0
Broadcast
188.214.10.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
51.5128 , -0.0638
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS56478 · Hyperoptic Ltd
Top organization / ISP
Hyperoptic Ltd · Hyperoptic Ltd
Top geo
United Kingdom · England · Tower Hamlets
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

212.126.109.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
212.126.109.0
Broadcast
212.126.109.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.1898 , 44.0157
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS39216 · AL-SARD FIBER Co. for Internet Fiber and Optical Cable Services /Ltd.
Top organization / ISP
ALSARD FIBER Co. Internet Fiber and Optical Cable Services /Ltd. · AL-SARD FIBER Co. Internet Fiber and Optical Cable Services /Ltd.
Top geo
Iraq · Erbil Governorate · Erbil
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

219.122.157.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
219.122.157.0
Broadcast
219.122.157.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.8326 , 134.6722
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS17511 · OPTAGE Inc.
Top organization / ISP
K-Opticom Corporation · OPTAGE Inc.
Top geo
Japan · Hyōgo · Himeji
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

58.190.48.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
58.190.48.0
Broadcast
58.190.48.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.7368 , 135.3424
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS17511 · OPTAGE Inc.
Top organization / ISP
K-Opticom Corporation · OPTAGE Inc.
Top geo
Japan · Hyōgo · Nishinomiya
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

58.84.136.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
58.84.136.0
Broadcast
58.84.136.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-33.8069 , 150.9845
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS45763 · Opticomm Co Pty Ltd
Top organization / ISP
Fuzenet PTY LTD · FUZENET
Top geo
Australia · New South Wales · Sydney
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

85.187.204.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
85.187.204.0
Broadcast
85.187.204.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.6977 , 23.3219
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS39246 · Liulin Net Ltd.
Top organization / ISP
Optical · Optical Structural Network Ltd.
Top geo
Bulgaria · Sofia-Capital · Sofia
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

94.236.135.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
94.236.135.0
Broadcast
94.236.135.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
42.6826 , 23.3223
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS42555 · OPTICCOM- BULGARIA Ltd.
Top organization / ISP
Dynamic PPPoE · OPTICCOM- BULGARIA Ltd.
Top geo
Bulgaria · Sofia-Capital · Sofia
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →
Page 6 of 6
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