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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.

58.187.57.0/24

Risk Max LOW Footprint 2.344% Hits 10
Prefix / IP version
/24 · IPv4
Network
58.187.57.0
Broadcast
58.187.57.255
Observed IPs / Subnet size
6 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
10 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

1.55.211.0/24

Risk Max LOW Footprint 2.344% Hits 10
Prefix / IP version
/24 · IPv4
Network
1.55.211.0
Broadcast
1.55.211.255
Observed IPs / Subnet size
6 observed · 256 total
Centroid
21.018400000000003 , 105.8461
Hits / Errors
10 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-03-01 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.1.77.0/24

Risk Max LOW Footprint 2.344% Hits 7
Prefix / IP version
/24 · IPv4
Network
42.1.77.0
Broadcast
42.1.77.255
Observed IPs / Subnet size
6 observed · 256 total
Centroid
21.018400000000003 , 105.8461
Hits / Errors
7 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 02:00
Top ASN
AS131429 · MOBIFONE Corporation
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.1.70.0/24

Risk Max LOW Footprint 1.953% Hits 8
Prefix / IP version
/24 · IPv4
Network
42.1.70.0
Broadcast
42.1.70.255
Observed IPs / Subnet size
5 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
8 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS131429 · MOBIFONE Corporation
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

58.187.56.0/24

Risk Max LOW Footprint 1.562% Hits 11
Prefix / IP version
/24 · IPv4
Network
58.187.56.0
Broadcast
58.187.56.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
21.0184 , 105.84609999999999
Hits / Errors
11 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

1.53.240.0/24

Risk Max LOW Footprint 1.562% Hits 7
Prefix / IP version
/24 · IPv4
Network
1.53.240.0
Broadcast
1.53.240.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
10.822 , 106.62570000000001
Hits / Errors
7 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-03-01 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

113.23.53.0/24

Risk Max LOW Footprint 1.562% Hits 7
Prefix / IP version
/24 · IPv4
Network
113.23.53.0
Broadcast
113.23.53.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
21.018400000000003 , 105.8461
Hits / Errors
7 hits · 1 errors
First / Last seen
2026-02-24 02:00 · 2026-02-28 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.114.72.0/24

Risk Max LOW Footprint 1.562% Hits 6
Prefix / IP version
/24 · IPv4
Network
42.114.72.0
Broadcast
42.114.72.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.116.41.0/24

Risk Max LOW Footprint 1.562% Hits 6
Prefix / IP version
/24 · IPv4
Network
42.116.41.0
Broadcast
42.116.41.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
21.0184 , 105.84609999999999
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.119.190.0/24

Risk Max LOW Footprint 1.562% Hits 6
Prefix / IP version
/24 · IPv4
Network
42.119.190.0
Broadcast
42.119.190.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.118.27.0/24

Risk Max LOW Footprint 1.562% Hits 6
Prefix / IP version
/24 · IPv4
Network
42.118.27.0
Broadcast
42.118.27.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

113.22.85.0/24

Risk Max LOW Footprint 1.562% Hits 5
Prefix / IP version
/24 · IPv4
Network
113.22.85.0
Broadcast
113.22.85.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
10.822 , 106.62570000000001
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-26 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.113.119.0/24

Risk Max LOW Footprint 1.562% Hits 4
Prefix / IP version
/24 · IPv4
Network
42.113.119.0
Broadcast
42.113.119.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-27 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.118.149.0/24

Risk Max LOW Footprint 1.172% Hits 7
Prefix / IP version
/24 · IPv4
Network
42.118.149.0
Broadcast
42.118.149.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
16.648514285714285 , 106.1802142857143
Hits / Errors
7 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

58.187.188.0/24

Risk Max LOW Footprint 1.172% Hits 6
Prefix / IP version
/24 · IPv4
Network
58.187.188.0
Broadcast
58.187.188.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
10.821999999999997 , 106.6257
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

58.187.76.0/24

Risk Max LOW Footprint 1.172% Hits 6
Prefix / IP version
/24 · IPv4
Network
58.187.76.0
Broadcast
58.187.76.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

58.187.65.0/24

Risk Max LOW Footprint 1.172% Hits 6
Prefix / IP version
/24 · IPv4
Network
58.187.65.0
Broadcast
58.187.65.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

58.187.51.0/24

Risk Max LOW Footprint 1.172% Hits 6
Prefix / IP version
/24 · IPv4
Network
58.187.51.0
Broadcast
58.187.51.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
6 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.114.206.0/24

Risk Max LOW Footprint 1.172% Hits 5
Prefix / IP version
/24 · IPv4
Network
42.114.206.0
Broadcast
42.114.206.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
10.822 , 106.62570000000001
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

58.186.129.0/24

Risk Max LOW Footprint 1.172% Hits 5
Prefix / IP version
/24 · IPv4
Network
58.186.129.0
Broadcast
58.186.129.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

58.187.74.0/24

Risk Max LOW Footprint 1.172% Hits 5
Prefix / IP version
/24 · IPv4
Network
58.187.74.0
Broadcast
58.187.74.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

1.55.43.0/24

Risk Max LOW Footprint 1.172% Hits 4
Prefix / IP version
/24 · IPv4
Network
1.55.43.0
Broadcast
1.55.43.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-03-01 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.113.242.0/24

Risk Max LOW Footprint 1.172% Hits 4
Prefix / IP version
/24 · IPv4
Network
42.113.242.0
Broadcast
42.113.242.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-28 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.114.187.0/24

Risk Max LOW Footprint 1.172% Hits 4
Prefix / IP version
/24 · IPv4
Network
42.114.187.0
Broadcast
42.114.187.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

118.68.165.0/24

Risk Max LOW Footprint 1.172% Hits 4
Prefix / IP version
/24 · IPv4
Network
118.68.165.0
Broadcast
118.68.165.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-26 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

118.70.41.0/24

Risk Max LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
118.70.41.0
Broadcast
118.70.41.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
3 hits · 1 errors
First / Last seen
2026-02-27 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.112.110.0/24

Risk Max LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
42.112.110.0
Broadcast
42.112.110.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
10.821999999999997 , 106.6257
Hits / Errors
3 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 02:00
Top ASN
AS18403 · FPT Telecom Company
Top organization / ISP
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.114.205.0/24

Risk Max LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
42.114.205.0
Broadcast
42.114.205.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
10.821999999999997 , 106.6257
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-28 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.114.234.0/24

Risk Max LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
42.114.234.0
Broadcast
42.114.234.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-28 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.118.208.0/24

Risk Max LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
42.118.208.0
Broadcast
42.118.208.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
10.821999999999997 , 106.6257
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.119.200.0/24

Risk Max LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
42.119.200.0
Broadcast
42.119.200.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
10.821999999999997 , 106.6257
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-27 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

58.187.248.0/24

Risk Max LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
58.187.248.0
Broadcast
58.187.248.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-27 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.115.192.0/24

Risk Max LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
42.115.192.0
Broadcast
42.115.192.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
10.821999999999997 , 106.6257
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

1.55.100.0/24

Risk Max LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
1.55.100.0
Broadcast
1.55.100.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

1.55.21.0/24

Risk Max LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
1.55.21.0
Broadcast
1.55.21.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-03-01 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

58.186.46.0/24

Risk Max LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
58.186.46.0
Broadcast
58.186.46.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
12.6675 , 108.03799999999998
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-03-01 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

1.55.39.0/24

Risk Max LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
1.55.39.0
Broadcast
1.55.39.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
10.822 , 106.62570000000001
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-27 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

118.70.98.0/24

Risk Max LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
118.70.98.0
Broadcast
118.70.98.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top organization / ISP
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.113.128.0/24

Risk Max LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
42.113.128.0
Broadcast
42.113.128.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS18403 · FPT Telecom Company
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

42.112.192.0/24

Risk Max LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
42.112.192.0
Broadcast
42.112.192.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
21.1858 , 106.0746
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 02:00
Top ASN
AS18403 · FPT Telecom Company
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
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