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:
Ha Noi Post and Telecom Company
·
Clear
Snapshot
2026-03-14
Results
—
Page
2
/
2
203.210.133.0/24
Risk Max
—
LOW
Footprint
12.500
%
Hits
57
Prefix / IP version
/24 · IPv4
Network
203.210.133.0
Broadcast
203.210.133.255
Observed IPs / Subnet size
32
observed ·
256
total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
57
hits ·
3
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.6.0/24
Risk Max
—
LOW
Footprint
12.500
%
Hits
56
Prefix / IP version
/24 · IPv4
Network
222.254.6.0
Broadcast
222.254.6.255
Observed IPs / Subnet size
32
observed ·
256
total
Centroid
21.018399999999996 , 105.84609999999999
Hits / Errors
56
hits ·
1
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.22.0/24
Risk Max
—
LOW
Footprint
12.500
%
Hits
53
Prefix / IP version
/24 · IPv4
Network
222.254.22.0
Broadcast
222.254.22.255
Observed IPs / Subnet size
32
observed ·
256
total
Centroid
21.018400000000007 , 105.84610000000005
Hits / Errors
53
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
203.210.141.0/24
Risk Max
—
LOW
Footprint
12.500
%
Hits
53
Prefix / IP version
/24 · IPv4
Network
203.210.141.0
Broadcast
203.210.141.255
Observed IPs / Subnet size
32
observed ·
256
total
Centroid
21.018400000000003 , 105.84609999999999
Hits / Errors
53
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.11.0/24
Risk Max
—
LOW
Footprint
12.109
%
Hits
65
Prefix / IP version
/24 · IPv4
Network
222.254.11.0
Broadcast
222.254.11.255
Observed IPs / Subnet size
31
observed ·
256
total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
65
hits ·
2
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.9.0/24
Risk Max
—
LOW
Footprint
12.109
%
Hits
52
Prefix / IP version
/24 · IPv4
Network
222.254.9.0
Broadcast
222.254.9.255
Observed IPs / Subnet size
31
observed ·
256
total
Centroid
21.018400000000003 , 105.84610000000004
Hits / Errors
52
hits ·
1
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.56.0/24
Risk Max
—
LOW
Footprint
12.109
%
Hits
50
Prefix / IP version
/24 · IPv4
Network
222.254.56.0
Broadcast
222.254.56.255
Observed IPs / Subnet size
31
observed ·
256
total
Centroid
21.022274000000007 , 105.860114
Hits / Errors
50
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.21.0/24
Risk Max
—
LOW
Footprint
11.719
%
Hits
51
Prefix / IP version
/24 · IPv4
Network
222.254.21.0
Broadcast
222.254.21.255
Observed IPs / Subnet size
30
observed ·
256
total
Centroid
21.018400000000003 , 105.84610000000004
Hits / Errors
51
hits ·
2
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.8.0/24
Risk Max
—
LOW
Footprint
11.328
%
Hits
56
Prefix / IP version
/24 · IPv4
Network
222.254.8.0
Broadcast
222.254.8.255
Observed IPs / Subnet size
29
observed ·
256
total
Centroid
21.018399999999996 , 105.8461
Hits / Errors
56
hits ·
2
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.17.0/24
Risk Max
—
LOW
Footprint
11.328
%
Hits
50
Prefix / IP version
/24 · IPv4
Network
222.254.17.0
Broadcast
222.254.17.255
Observed IPs / Subnet size
29
observed ·
256
total
Centroid
21.018399999999996 , 105.84610000000002
Hits / Errors
50
hits ·
2
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.5.0/24
Risk Max
—
LOW
Footprint
10.938
%
Hits
46
Prefix / IP version
/24 · IPv4
Network
222.254.5.0
Broadcast
222.254.5.255
Observed IPs / Subnet size
28
observed ·
256
total
Centroid
21.018400000000003 , 105.84610000000005
Hits / Errors
46
hits ·
1
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.19.0/24
Risk Max
—
LOW
Footprint
10.547
%
Hits
48
Prefix / IP version
/24 · IPv4
Network
222.254.19.0
Broadcast
222.254.19.255
Observed IPs / Subnet size
27
observed ·
256
total
Centroid
21.018400000000003 , 105.84610000000004
Hits / Errors
48
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.16.0/24
Risk Max
—
LOW
Footprint
10.156
%
Hits
54
Prefix / IP version
/24 · IPv4
Network
222.254.16.0
Broadcast
222.254.16.255
Observed IPs / Subnet size
26
observed ·
256
total
Centroid
21.0184 , 105.8461
Hits / Errors
54
hits ·
2
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
203.210.128.0/24
Risk Max
—
LOW
Footprint
10.156
%
Hits
53
Prefix / IP version
/24 · IPv4
Network
203.210.128.0
Broadcast
203.210.128.255
Observed IPs / Subnet size
26
observed ·
256
total
Centroid
21.018400000000003 , 105.8461
Hits / Errors
53
hits ·
2
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.23.0/24
Risk Max
—
LOW
Footprint
9.766
%
Hits
46
Prefix / IP version
/24 · IPv4
Network
222.254.23.0
Broadcast
222.254.23.255
Observed IPs / Subnet size
25
observed ·
256
total
Centroid
21.018400000000007 , 105.84610000000005
Hits / Errors
46
hits ·
1
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
203.210.138.0/24
Risk Max
—
LOW
Footprint
9.375
%
Hits
54
Prefix / IP version
/24 · IPv4
Network
203.210.138.0
Broadcast
203.210.138.255
Observed IPs / Subnet size
24
observed ·
256
total
Centroid
21.018400000000003 , 105.84610000000002
Hits / Errors
54
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.20.0/24
Risk Max
—
LOW
Footprint
8.984
%
Hits
39
Prefix / IP version
/24 · IPv4
Network
222.254.20.0
Broadcast
222.254.20.255
Observed IPs / Subnet size
23
observed ·
256
total
Centroid
21.0184 , 105.84610000000004
Hits / Errors
39
hits ·
2
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
203.210.139.0/24
Risk Max
—
LOW
Footprint
5.469
%
Hits
33
Prefix / IP version
/24 · IPv4
Network
203.210.139.0
Broadcast
203.210.139.255
Observed IPs / Subnet size
14
observed ·
256
total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
33
hits ·
3
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.34.0/24
Risk Max
—
LOW
Footprint
2.734
%
Hits
15
Prefix / IP version
/24 · IPv4
Network
222.254.34.0
Broadcast
222.254.34.255
Observed IPs / Subnet size
7
observed ·
256
total
Centroid
21.018399999999996 , 105.84609999999999
Hits / Errors
15
hits ·
0
errors
First / Last seen
2026-03-02 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.39.0/24
Risk Max
—
LOW
Footprint
0.781
%
Hits
4
Prefix / IP version
/24 · IPv4
Network
222.254.39.0
Broadcast
222.254.39.255
Observed IPs / Subnet size
2
observed ·
256
total
Centroid
21.0184 , 105.8461
Hits / Errors
4
hits ·
0
errors
First / Last seen
2026-03-04 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.254.40.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
222.254.40.0
Broadcast
222.254.40.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
21.0184 , 105.8461
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-03-08 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Ha Noi Post and Telecom Company
·
VNPT Corp
Top geo
Vietnam
·
Hanoi
·
Hanoi
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
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