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.
Search
Active filter:
China Unicom Shanghai network
·
Clear
Snapshot
2026-03-19
Results
—
Page
1
/
1
139.227.52.0/24
Risk Max
—
LOW
Footprint
0.781
%
Hits
8
Prefix / IP version
/24 · IPv4
Network
139.227.52.0
Broadcast
139.227.52.255
Observed IPs / Subnet size
2
observed ·
256
total
Centroid
31.2222 , 121.4581
Hits / Errors
8
hits ·
0
errors
First / Last seen
2026-03-08 02:00 · 2026-03-13 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
Unicom SH
·
China Unicom Shanghai network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
223.166.22.0/24
Risk Max
—
LOW
Footprint
0.781
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
223.166.22.0
Broadcast
223.166.22.255
Observed IPs / Subnet size
2
observed ·
256
total
Centroid
31.2222 , 121.4581
Hits / Errors
2
hits ·
0
errors
First / Last seen
2026-03-09 02:00 · 2026-03-13 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
— ·
China Unicom Shanghai Province Network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
139.227.201.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
10
Prefix / IP version
/24 · IPv4
Network
139.227.201.0
Broadcast
139.227.201.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.222199999999997 , 121.45810000000002
Hits / Errors
10
hits ·
0
errors
First / Last seen
2026-03-10 02:00 · 2026-03-13 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
Unicom SH
·
China Unicom Shanghai network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
139.227.121.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
9
Prefix / IP version
/24 · IPv4
Network
139.227.121.0
Broadcast
139.227.121.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.2222 , 121.4581
Hits / Errors
9
hits ·
0
errors
First / Last seen
2026-03-11 02:00 · 2026-03-12 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
Unicom SH
·
China Unicom Shanghai network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
58.247.144.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
7
Prefix / IP version
/24 · IPv4
Network
58.247.144.0
Broadcast
58.247.144.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.222200000000004 , 121.45809999999999
Hits / Errors
7
hits ·
0
errors
First / Last seen
2026-03-08 02:00 · 2026-03-09 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
— ·
CNC Group CHINA169 Shanghai Province Network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
223.167.202.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
6
Prefix / IP version
/24 · IPv4
Network
223.167.202.0
Broadcast
223.167.202.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.2222 , 121.4581
Hits / Errors
6
hits ·
0
errors
First / Last seen
2026-03-09 02:00 · 2026-03-13 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
— ·
China Unicom Shanghai Province Network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
223.166.85.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
6
Prefix / IP version
/24 · IPv4
Network
223.166.85.0
Broadcast
223.166.85.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.2855 , 121.437
Hits / Errors
6
hits ·
0
errors
First / Last seen
2026-03-10 02:00 · 2026-03-12 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
— ·
China Unicom Shanghai Province Network
Top geo
China
·
Shanghai
·
Pengpu
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
58.247.145.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
4
Prefix / IP version
/24 · IPv4
Network
58.247.145.0
Broadcast
58.247.145.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.2222 , 121.4581
Hits / Errors
4
hits ·
0
errors
First / Last seen
2026-03-12 02:00 · 2026-03-13 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
— ·
CNC Group CHINA169 Shanghai Province Network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
223.167.203.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
4
Prefix / IP version
/24 · IPv4
Network
223.167.203.0
Broadcast
223.167.203.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.2222 , 121.4581
Hits / Errors
4
hits ·
0
errors
First / Last seen
2026-03-09 02:00 · 2026-03-11 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
— ·
China Unicom Shanghai Province Network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
58.246.126.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
58.246.126.0
Broadcast
58.246.126.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.2222 , 121.4581
Hits / Errors
2
hits ·
0
errors
First / Last seen
2026-03-10 02:00 · 2026-03-11 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
— ·
CNC Group CHINA169 Shanghai Province Network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
27.115.124.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
27.115.124.0
Broadcast
27.115.124.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.2222 , 121.4581
Hits / Errors
2
hits ·
0
errors
First / Last seen
2026-03-08 02:00 · 2026-03-09 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
— ·
China Unicom Shanghai Province Network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
223.167.74.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
223.167.74.0
Broadcast
223.167.74.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
31.2222 , 121.4581
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-03-11 02:00 · 2026-03-12 02:00
Top ASN
AS17621 ·
China Unicom Shanghai network
Top organization / ISP
— ·
China Unicom Shanghai Province Network
Top geo
China
·
Shanghai
·
Shanghai
Window / Updated
2026-03-09 → 2026-03-16 · Updated
2026-03-18
· v2
Open report →
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