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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: FASTNET DATA INC · Clear
Snapshot 2026-01-20 Results 7 Page 1 / 1

154.19.241.0/24

Risk Max — LOW Footprint 0.391% Hits 30
Prefix / IP version
/24 · IPv4
Network
154.19.241.0
Broadcast
154.19.241.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
1.2919000000000003 , 103.85
Hits / Errors
30 hits · 0 errors
First / Last seen
2025-08-12 05:46 · 2025-08-12 05:46
Top ASN
AS8796 · FASTNET DATA INC
Top organization / ISP
Starcloud Global Pte. LTD · Cogent Communications
Top geo
Singapore · Central Singapore · Singapore
Window / Updated
2025-08-11 → 2025-08-18 · Updated 2026-01-14 · v2
Open report →

154.23.253.0/24

Risk Max — LOW Footprint 0.391% Hits 17
Prefix / IP version
/24 · IPv4
Network
154.23.253.0
Broadcast
154.23.253.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.1326 , -117.554
Hits / Errors
17 hits · 0 errors
First / Last seen
2025-04-08 19:43 · 2025-04-08 20:15
Top ASN
AS8796 · FASTNET DATA INC
Top organization / ISP
Kurun Cloud Inc · Starcloud Global Pte. LTD
Top geo
United States · California · Rancho Cucamonga
Window / Updated
2025-04-07 → 2025-04-14 · Updated 2026-01-14 · v2
Open report →

154.26.212.0/24

Risk Max — LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
154.26.212.0
Broadcast
154.26.212.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
1.35208 , 103.82
Hits / Errors
4 hits · 2 errors
First / Last seen
2025-09-10 06:23 · 2025-09-10 07:08
Top ASN
AS8796 · FASTNET DATA INC
Top organization / ISP
STARCLOUD GLOBAL PTE. LTD., KURUN CLOUD INC · Fastnet Data Inc
Top geo
Singapore · North West · Singapore
Window / Updated
2025-09-08 → 2025-09-15 · Updated 2026-01-14 · v2
Open report →

156.238.224.0/24

Risk Max — LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
156.238.224.0
Broadcast
156.238.224.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
22.3193 , 114.169
Hits / Errors
4 hits · 2 errors
First / Last seen
2025-06-23 12:25 · 2025-06-23 12:25
Top ASN
AS8796 · FASTNET DATA INC
Top organization / ISP
cognetcloud INC · Fastnet Data Inc
Top geo
Hong Kong · Kowloon · Hong Kong
Window / Updated
2025-06-23 → 2025-06-30 · Updated 2026-01-14 · v2
Open report →

38.148.244.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
38.148.244.0
Broadcast
38.148.244.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.0544 , -118.244
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-09-30 22:36 · 2025-09-30 22:36
Top ASN
AS8796 · FASTNET DATA INC
Top organization / ISP
Kurun Cloud Inc · Cogent Communications
Top geo
United States · California · Los Angeles
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2
Open report →

154.19.252.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
154.19.252.0
Broadcast
154.19.252.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
34.0479 , -118.256
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-14 03:00 · 2025-05-14 03:00
Top ASN
AS8796 · FASTNET DATA INC
Top organization / ISP
Starcloud Global Pte. LTD · Cogent Communications
Top geo
United States · California · Los Angeles
Window / Updated
2025-05-12 → 2025-05-19 · Updated 2026-01-14 · v2
Open report →

156.238.251.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
156.238.251.0
Broadcast
156.238.251.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
22.3193 , 114.169
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-08-06 05:34 · 2025-08-06 05:34
Top ASN
AS8796 · FASTNET DATA INC
Top organization / ISP
cognetcloud INC · Fastnet Data Inc
Top geo
Hong Kong · Kowloon · Hong Kong
Window / Updated
2025-08-04 → 2025-08-11 · Updated 2026-01-14 · v2
Open report →