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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: Langenzersdorf · Clear
Snapshot 2026-01-21 Results 8 Page 1 / 1

64.137.108.0/24

Risk Max 1 LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
64.137.108.0
Broadcast
64.137.108.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.301 , 16.3448
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-30 21:39 · 2025-05-30 21:39
Top ASN
AS133944 · trafficforce, UAB
Top organization / ISP
Code At · Tesonet, UAB
Top geo
Austria · Lower Austria · Langenzersdorf
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2
Open report →

195.144.21.0/24

Risk Max — LOW Footprint 0.391% Hits 6
Prefix / IP version
/24 · IPv4
Network
195.144.21.0
Broadcast
195.144.21.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.30100000000001 , 16.3448
Hits / Errors
6 hits · 1 errors
First / Last seen
2025-01-09 12:19 · 2025-01-09 12:19
Top ASN
AS174 · Cogent Communications, LLC
Top organization / ISP
BlackHOST LTD · Cogent Communications
Top geo
Austria · Lower Austria · Langenzersdorf
Window / Updated
2025-01-06 → 2025-01-13 · Updated 2026-01-14 · v2
Open report →

178.190.201.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
178.190.201.0
Broadcast
178.190.201.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.3043 , 16.3614
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-12-14 11:59 · 2025-12-14 11:59
Top ASN
AS8447 · A1 Telekom Austria AG
Top organization / ISP
High Speed Internet Customers · HIGHWAY194
Top geo
Austria · Lower Austria · Langenzersdorf
Window / Updated
2025-12-08 → 2025-12-15 · Updated 2026-01-14 · v2
Open report →

138.128.145.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
138.128.145.0
Broadcast
138.128.145.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.301 , 16.3448
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-15 15:48 · 2025-05-15 15:48
Top ASN
AS133944 · trafficforce, UAB
Top organization / ISP
Code At6 · Tesonet, UAB
Top geo
Austria · Lower Austria · Langenzersdorf
Window / Updated
2025-05-12 → 2025-05-19 · Updated 2026-01-14 · v2
Open report →

64.137.103.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
64.137.103.0
Broadcast
64.137.103.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.301 , 16.3448
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-15 09:44 · 2025-05-15 09:44
Top ASN
AS133944 · trafficforce, UAB
Top organization / ISP
Code At2 · Tesonet, UAB
Top geo
Austria · Lower Austria · Langenzersdorf
Window / Updated
2025-05-12 → 2025-05-19 · Updated 2026-01-14 · v2
Open report →

185.17.12.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
185.17.12.0
Broadcast
185.17.12.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.3043 , 16.3614
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-23 00:32 · 2025-11-23 00:32
Top ASN
AS51184 · Fonira Telekom GmbH
Top organization / ISP
Fonira Telekom GmbH · Fonira Telekom GmbH
Top geo
Austria · Lower Austria · Langenzersdorf
Window / Updated
2025-11-17 → 2025-11-24 · Updated 2026-01-14 · v2
Open report →

178.190.152.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
178.190.152.0
Broadcast
178.190.152.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.301 , 16.3448
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-06 04:26 · 2025-11-06 04:26
Top ASN
AS8447 · A1 Telekom Austria AG
Top organization / ISP
Highway Customers · A1 Telekom Austria AG
Top geo
Austria · Lower Austria · Langenzersdorf
Window / Updated
2025-11-03 → 2025-11-10 · Updated 2026-01-14 · v2
Open report →

64.137.88.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
64.137.88.0
Broadcast
64.137.88.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.301 , 16.3448
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-02-12 00:36 · 2025-02-12 00:36
Top ASN
AS133944 · trafficforce, UAB
Top organization / ISP
Code At4 · Tesonet, UAB
Top geo
Austria · Lower Austria · Langenzersdorf
Window / Updated
2025-02-10 → 2025-02-17 · Updated 2026-01-14 · v2
Open report →