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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.

123.18.221.0/24

Risk Max LOW Footprint 14.062% Hits 71
Prefix / IP version
/24 · IPv4
Network
123.18.221.0
Broadcast
123.18.221.255
Observed IPs / Subnet size
36 observed · 256 total
Centroid
19.00665915492958 , 105.74100422535206
Hits / Errors
71 hits · 2 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.236.0/24

Risk Max LOW Footprint 12.500% Hits 56
Prefix / IP version
/24 · IPv4
Network
123.18.236.0
Broadcast
123.18.236.255
Observed IPs / Subnet size
32 observed · 256 total
Centroid
19.076460714285723 , 105.9618125
Hits / Errors
56 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.233.0/24

Risk Max LOW Footprint 12.500% Hits 54
Prefix / IP version
/24 · IPv4
Network
123.18.233.0
Broadcast
123.18.233.255
Observed IPs / Subnet size
32 observed · 256 total
Centroid
19.545022222222226 , 105.74729999999998
Hits / Errors
54 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.209.0/24

Risk Max LOW Footprint 11.328% Hits 55
Prefix / IP version
/24 · IPv4
Network
123.18.209.0
Broadcast
123.18.209.255
Observed IPs / Subnet size
29 observed · 256 total
Centroid
19.272254545454548 , 105.73135090909089
Hits / Errors
55 hits · 2 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.232.0/24

Risk Max LOW Footprint 10.938% Hits 57
Prefix / IP version
/24 · IPv4
Network
123.18.232.0
Broadcast
123.18.232.255
Observed IPs / Subnet size
28 observed · 256 total
Centroid
19.41648421052632 , 105.73978421052631
Hits / Errors
57 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.237.0/24

Risk Max LOW Footprint 10.938% Hits 53
Prefix / IP version
/24 · IPv4
Network
123.18.237.0
Broadcast
123.18.237.255
Observed IPs / Subnet size
28 observed · 256 total
Centroid
18.93940377358491 , 105.71188867924525
Hits / Errors
53 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.202.0/24

Risk Max LOW Footprint 10.547% Hits 53
Prefix / IP version
/24 · IPv4
Network
123.18.202.0
Broadcast
123.18.202.255
Observed IPs / Subnet size
27 observed · 256 total
Centroid
19.339309433962267 , 105.7352716981132
Hits / Errors
53 hits · 2 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.225.0/24

Risk Max LOW Footprint 10.547% Hits 47
Prefix / IP version
/24 · IPv4
Network
123.18.225.0
Broadcast
123.18.225.255
Observed IPs / Subnet size
27 observed · 256 total
Centroid
19.638776595744684 , 105.86141276595744
Hits / Errors
47 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.239.0/24

Risk Max LOW Footprint 10.547% Hits 42
Prefix / IP version
/24 · IPv4
Network
123.18.239.0
Broadcast
123.18.239.255
Observed IPs / Subnet size
27 observed · 256 total
Centroid
19.40172857142857 , 105.73892142857143
Hits / Errors
42 hits · 2 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.238.0/24

Risk Max LOW Footprint 10.156% Hits 49
Prefix / IP version
/24 · IPv4
Network
123.18.238.0
Broadcast
123.18.238.255
Observed IPs / Subnet size
26 observed · 256 total
Centroid
19.612228571428574 , 106.11917142857145
Hits / Errors
49 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.224.0/24

Risk Max LOW Footprint 10.156% Hits 48
Prefix / IP version
/24 · IPv4
Network
123.18.224.0
Broadcast
123.18.224.255
Observed IPs / Subnet size
26 observed · 256 total
Centroid
19.555925 , 105.74793749999996
Hits / Errors
48 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.201.0/24

Risk Max LOW Footprint 9.766% Hits 45
Prefix / IP version
/24 · IPv4
Network
123.18.201.0
Broadcast
123.18.201.255
Observed IPs / Subnet size
25 observed · 256 total
Centroid
19.143800000000002 , 105.72384
Hits / Errors
45 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.227.0/24

Risk Max LOW Footprint 9.375% Hits 41
Prefix / IP version
/24 · IPv4
Network
123.18.227.0
Broadcast
123.18.227.255
Observed IPs / Subnet size
24 observed · 256 total
Centroid
19.706702439024394 , 105.75675365853655
Hits / Errors
41 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

113.181.100.0/24

Risk Max LOW Footprint 8.984% Hits 45
Prefix / IP version
/24 · IPv4
Network
113.181.100.0
Broadcast
113.181.100.255
Observed IPs / Subnet size
23 observed · 256 total
Centroid
19.194811111111107 , 105.68192222222221
Hits / Errors
45 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

113.164.40.0/24

Risk Max LOW Footprint 8.594% Hits 39
Prefix / IP version
/24 · IPv4
Network
113.164.40.0
Broadcast
113.164.40.255
Observed IPs / Subnet size
22 observed · 256 total
Centroid
18.883299999999995 , 105.28299999999999
Hits / Errors
39 hits · 3 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.208.0/24

Risk Max LOW Footprint 8.203% Hits 46
Prefix / IP version
/24 · IPv4
Network
123.18.208.0
Broadcast
123.18.208.255
Observed IPs / Subnet size
21 observed · 256 total
Centroid
18.72399565217392 , 105.69929347826086
Hits / Errors
46 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.200.0/24

Risk Max LOW Footprint 8.203% Hits 40
Prefix / IP version
/24 · IPv4
Network
123.18.200.0
Broadcast
123.18.200.255
Observed IPs / Subnet size
21 observed · 256 total
Centroid
19.261550000000007 , 105.73072499999998
Hits / Errors
40 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.244.0/24

Risk Max LOW Footprint 8.203% Hits 36
Prefix / IP version
/24 · IPv4
Network
123.18.244.0
Broadcast
123.18.244.255
Observed IPs / Subnet size
21 observed · 256 total
Centroid
19.13071666666667 , 105.723075
Hits / Errors
36 hits · 2 errors
First / Last seen
2026-03-02 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

113.189.234.0/24

Risk Max LOW Footprint 8.203% Hits 33
Prefix / IP version
/24 · IPv4
Network
113.189.234.0
Broadcast
113.189.234.255
Observed IPs / Subnet size
21 observed · 256 total
Centroid
18.160572727272722 , 106.0356727272727
Hits / Errors
33 hits · 2 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Top organization / ISP
— · VNPT
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.253.0/24

Risk Max LOW Footprint 8.203% Hits 32
Prefix / IP version
/24 · IPv4
Network
123.18.253.0
Broadcast
123.18.253.255
Observed IPs / Subnet size
21 observed · 256 total
Centroid
18.967175000000005 , 105.71351250000002
Hits / Errors
32 hits · 2 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.205.0/24

Risk Max LOW Footprint 7.812% Hits 44
Prefix / IP version
/24 · IPv4
Network
123.18.205.0
Broadcast
123.18.205.255
Observed IPs / Subnet size
20 observed · 256 total
Centroid
19.529913636363638 , 105.85472045454547
Hits / Errors
44 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.203.0/24

Risk Max LOW Footprint 7.812% Hits 33
Prefix / IP version
/24 · IPv4
Network
123.18.203.0
Broadcast
123.18.203.255
Observed IPs / Subnet size
20 observed · 256 total
Centroid
19.457800000000006 , 105.74220000000001
Hits / Errors
33 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

113.181.102.0/24

Risk Max LOW Footprint 7.812% Hits 31
Prefix / IP version
/24 · IPv4
Network
113.181.102.0
Broadcast
113.181.102.255
Observed IPs / Subnet size
20 observed · 256 total
Centroid
18.976499999999998 , 105.59999999999997
Hits / Errors
31 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.230.0/24

Risk Max LOW Footprint 7.422% Hits 37
Prefix / IP version
/24 · IPv4
Network
123.18.230.0
Broadcast
123.18.230.255
Observed IPs / Subnet size
19 observed · 256 total
Centroid
19.181989189189192 , 105.726072972973
Hits / Errors
37 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

113.164.37.0/24

Risk Max LOW Footprint 7.031% Hits 37
Prefix / IP version
/24 · IPv4
Network
113.164.37.0
Broadcast
113.164.37.255
Observed IPs / Subnet size
18 observed · 256 total
Centroid
19.223200000000002 , 105.65700000000001
Hits / Errors
37 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.245.0/24

Risk Max LOW Footprint 7.031% Hits 33
Prefix / IP version
/24 · IPv4
Network
123.18.245.0
Broadcast
123.18.245.255
Observed IPs / Subnet size
18 observed · 256 total
Centroid
18.88689090909091 , 105.70881818181819
Hits / Errors
33 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

113.181.2.0/24

Risk Max LOW Footprint 6.641% Hits 32
Prefix / IP version
/24 · IPv4
Network
113.181.2.0
Broadcast
113.181.2.255
Observed IPs / Subnet size
17 observed · 256 total
Centroid
19.07278125 , 105.57228124999997
Hits / Errors
32 hits · 3 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Top organization / ISP
— · VNPT
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.248.0/24

Risk Max LOW Footprint 6.641% Hits 32
Prefix / IP version
/24 · IPv4
Network
123.18.248.0
Broadcast
123.18.248.255
Observed IPs / Subnet size
17 observed · 256 total
Centroid
19.032350000000005 , 105.79524375000001
Hits / Errors
32 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.243.0/24

Risk Max LOW Footprint 6.641% Hits 31
Prefix / IP version
/24 · IPv4
Network
123.18.243.0
Broadcast
123.18.243.255
Observed IPs / Subnet size
17 observed · 256 total
Centroid
18.82473548387097 , 105.70518387096774
Hits / Errors
31 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.214.0/24

Risk Max LOW Footprint 6.641% Hits 26
Prefix / IP version
/24 · IPv4
Network
123.18.214.0
Broadcast
123.18.214.255
Observed IPs / Subnet size
17 observed · 256 total
Centroid
18.944530769230767 , 105.71218846153846
Hits / Errors
26 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.218.0/24

Risk Max LOW Footprint 6.641% Hits 26
Prefix / IP version
/24 · IPv4
Network
123.18.218.0
Broadcast
123.18.218.255
Observed IPs / Subnet size
17 observed · 256 total
Centroid
18.76337692307692 , 105.70159615384615
Hits / Errors
26 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.211.0/24

Risk Max LOW Footprint 6.250% Hits 34
Prefix / IP version
/24 · IPv4
Network
123.18.211.0
Broadcast
123.18.211.255
Observed IPs / Subnet size
16 observed · 256 total
Centroid
18.742064705882353 , 105.70035
Hits / Errors
34 hits · 2 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

113.189.246.0/24

Risk Max LOW Footprint 6.250% Hits 29
Prefix / IP version
/24 · IPv4
Network
113.189.246.0
Broadcast
113.189.246.255
Observed IPs / Subnet size
16 observed · 256 total
Centroid
18.00678965517242 , 105.99782413793102
Hits / Errors
29 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Top organization / ISP
— · VNPT
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.154.0/24

Risk Max LOW Footprint 6.250% Hits 28
Prefix / IP version
/24 · IPv4
Network
123.18.154.0
Broadcast
123.18.154.255
Observed IPs / Subnet size
16 observed · 256 total
Centroid
19.20894642857143 , 105.27466071428572
Hits / Errors
28 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.247.0/24

Risk Max LOW Footprint 6.250% Hits 26
Prefix / IP version
/24 · IPv4
Network
123.18.247.0
Broadcast
123.18.247.255
Observed IPs / Subnet size
16 observed · 256 total
Centroid
18.763376923076923 , 105.70159615384615
Hits / Errors
26 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.204.0/24

Risk Max LOW Footprint 6.250% Hits 25
Prefix / IP version
/24 · IPv4
Network
123.18.204.0
Broadcast
123.18.204.255
Observed IPs / Subnet size
16 observed · 256 total
Centroid
19.505791999999996 , 105.59446800000002
Hits / Errors
25 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.231.0/24

Risk Max LOW Footprint 6.250% Hits 24
Prefix / IP version
/24 · IPv4
Network
123.18.231.0
Broadcast
123.18.231.255
Observed IPs / Subnet size
16 observed · 256 total
Centroid
18.869049999999998 , 105.70777500000001
Hits / Errors
24 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

113.181.97.0/24

Risk Max LOW Footprint 5.859% Hits 32
Prefix / IP version
/24 · IPv4
Network
113.181.97.0
Broadcast
113.181.97.255
Observed IPs / Subnet size
15 observed · 256 total
Centroid
19.58770625 , 105.43124375
Hits / Errors
32 hits · 1 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

123.18.215.0/24

Risk Max LOW Footprint 5.859% Hits 29
Prefix / IP version
/24 · IPv4
Network
123.18.215.0
Broadcast
123.18.215.255
Observed IPs / Subnet size
15 observed · 256 total
Centroid
18.835213793103446 , 105.70579655172413
Hits / Errors
29 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2

203.162.162.0/24

Risk Max LOW Footprint 5.859% Hits 28
Prefix / IP version
/24 · IPv4
Network
203.162.162.0
Broadcast
203.162.162.255
Observed IPs / Subnet size
15 observed · 256 total
Centroid
19.3255 , 105.183
Hits / Errors
28 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 · VNPT Corp
Top organization / ISP
— · VNPT
Window / Updated
2026-03-02 → 2026-03-09 · Updated 2026-03-13 · v2
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