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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.

115.75.51.0/24

Risk Max 16 LOW Footprint 0.391% Hits 53
Prefix / IP version
/24 · IPv4
Network
115.75.51.0
Broadcast
115.75.51.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
53 hits · 53 errors
First / Last seen
2024-01-04 23:34 · 2024-01-04 23:35
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2024-01-01 → 2024-01-08 · Updated 2026-01-14 · v2

171.244.40.0/24

Risk Max 7 LOW Footprint 0.391% Hits 79
Prefix / IP version
/24 · IPv4
Network
171.244.40.0
Broadcast
171.244.40.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.027799999999996 , 105.83399999999999
Hits / Errors
79 hits · 74 errors
First / Last seen
2025-05-19 15:50 · 2025-05-19 15:50
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

171.235.224.0/24

Risk Max 2 LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
171.235.224.0
Broadcast
171.235.224.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-06 04:39 · 2025-11-06 04:39
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-11-03 → 2025-11-10 · Updated 2026-01-14 · v2

171.229.217.0/24

Risk Max 1 LOW Footprint 0.391% Hits 9
Prefix / IP version
/24 · IPv4
Network
171.229.217.0
Broadcast
171.229.217.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
9 hits · 2 errors
First / Last seen
2024-02-22 21:04 · 2024-02-22 21:04
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2024-02-19 → 2024-02-26 · Updated 2026-01-14 · v2

171.224.179.0/24

Risk Max 1 LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
171.224.179.0
Broadcast
171.224.179.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
4 hits · 0 errors
First / Last seen
2025-12-17 12:15 · 2025-12-17 12:15
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2

171.244.49.0/24

Risk Max 1 LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.244.49.0
Broadcast
171.244.49.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0278 , 105.834
Hits / Errors
2 hits · 1 errors
First / Last seen
2024-05-12 08:50 · 2024-05-12 08:50
Top ASN
Top organization / ISP
Top geo
Window / Updated
2024-05-06 → 2024-05-13 · Updated 2026-01-14 · v2

115.73.218.0/24

Risk Max 1 LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
115.73.218.0
Broadcast
115.73.218.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
2 hits · 1 errors
First / Last seen
2024-02-15 02:03 · 2024-02-15 02:04
Top ASN
AS7552 · Viettel Group
Top organization / ISP
— · VIETELmetro
Window / Updated
2024-02-12 → 2024-02-19 · Updated 2026-01-14 · v2

171.244.204.0/24

Risk Max 1 LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.244.204.0
Broadcast
171.244.204.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0278 , 105.834
Hits / Errors
2 hits · 1 errors
First / Last seen
2023-11-02 20:07 · 2023-11-02 20:07
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2023-10-30 → 2023-11-06 · Updated 2026-01-14 · v2

171.224.180.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.224.180.0
Broadcast
171.224.180.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-06 06:48 · 2025-05-06 08:55
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

171.234.8.0/24

Risk Max LOW Footprint 0.391% Hits 46
Prefix / IP version
/24 · IPv4
Network
171.234.8.0
Broadcast
171.234.8.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
12.6675 , 108.0378
Hits / Errors
46 hits · 0 errors
First / Last seen
2025-07-19 16:26 · 2025-07-19 16:26
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-07-14 → 2025-07-21 · Updated 2026-01-14 · v2

171.250.164.0/24

Risk Max LOW Footprint 0.391% Hits 33
Prefix / IP version
/24 · IPv4
Network
171.250.164.0
Broadcast
171.250.164.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
33 hits · 0 errors
First / Last seen
2025-05-08 12:14 · 2025-05-08 12:35
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2

115.76.108.0/24

Risk Max LOW Footprint 0.391% Hits 29
Prefix / IP version
/24 · IPv4
Network
115.76.108.0
Broadcast
115.76.108.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
29 hits · 2 errors
First / Last seen
2025-01-13 18:39 · 2025-01-14 12:25
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-01-13 → 2025-01-20 · Updated 2026-01-14 · v2

171.244.33.0/24

Risk Max LOW Footprint 0.391% Hits 20
Prefix / IP version
/24 · IPv4
Network
171.244.33.0
Broadcast
171.244.33.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0278 , 105.83400000000002
Hits / Errors
20 hits · 18 errors
First / Last seen
2023-12-24 21:56 · 2023-12-24 21:57
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2023-12-18 → 2023-12-25 · Updated 2026-01-14 · v2

171.243.48.0/24

Risk Max LOW Footprint 0.391% Hits 16
Prefix / IP version
/24 · IPv4
Network
171.243.48.0
Broadcast
171.243.48.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
16 hits · 0 errors
First / Last seen
2025-10-05 15:28 · 2025-10-05 15:29
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2

171.236.215.0/24

Risk Max LOW Footprint 0.391% Hits 16
Prefix / IP version
/24 · IPv4
Network
171.236.215.0
Broadcast
171.236.215.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
16 hits · 0 errors
First / Last seen
2025-07-04 13:42 · 2025-07-04 13:43
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-06-30 → 2025-07-07 · Updated 2026-01-14 · v2

171.253.131.0/24

Risk Max LOW Footprint 0.391% Hits 16
Prefix / IP version
/24 · IPv4
Network
171.253.131.0
Broadcast
171.253.131.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
16 hits · 8 errors
First / Last seen
2024-12-21 22:24 · 2024-12-21 22:50
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2024-12-16 → 2024-12-23 · Updated 2026-01-14 · v2

171.232.3.0/24

Risk Max LOW Footprint 0.391% Hits 15
Prefix / IP version
/24 · IPv4
Network
171.232.3.0
Broadcast
171.232.3.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
15 hits · 0 errors
First / Last seen
2025-04-10 16:01 · 2025-04-10 16:03
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-04-07 → 2025-04-14 · Updated 2026-01-14 · v2

171.250.162.0/24

Risk Max LOW Footprint 0.391% Hits 15
Prefix / IP version
/24 · IPv4
Network
171.250.162.0
Broadcast
171.250.162.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
15 hits · 0 errors
First / Last seen
2025-04-03 19:04 · 2025-04-03 19:05
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-03-31 → 2025-04-07 · Updated 2026-01-14 · v2

115.79.226.0/24

Risk Max LOW Footprint 0.391% Hits 14
Prefix / IP version
/24 · IPv4
Network
115.79.226.0
Broadcast
115.79.226.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.62569999999998
Hits / Errors
14 hits · 0 errors
First / Last seen
2025-01-07 18:45 · 2025-01-07 18:45
Top ASN
AS7552 · Viettel Group
Top organization / ISP
— · VIETELftth
Window / Updated
2025-01-06 → 2025-01-13 · Updated 2026-01-14 · v2

115.75.223.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
115.75.223.0
Broadcast
115.75.223.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.821999999999997 , 106.6257
Hits / Errors
12 hits · 1 errors
First / Last seen
2024-11-30 10:57 · 2024-11-30 10:57
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2024-11-25 → 2024-12-02 · Updated 2026-01-14 · v2

171.227.219.0/24

Risk Max LOW Footprint 0.391% Hits 12
Prefix / IP version
/24 · IPv4
Network
171.227.219.0
Broadcast
171.227.219.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.821999999999997 , 106.6257
Hits / Errors
12 hits · 1 errors
First / Last seen
2024-10-12 11:57 · 2024-10-12 12:00
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2024-10-07 → 2024-10-14 · Updated 2026-01-14 · v2

27.79.201.0/24

Risk Max LOW Footprint 0.391% Hits 11
Prefix / IP version
/24 · IPv4
Network
27.79.201.0
Broadcast
27.79.201.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0184 , 105.84609999999999
Hits / Errors
11 hits · 0 errors
First / Last seen
2024-11-23 16:55 · 2024-11-23 16:55
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2024-11-18 → 2024-11-25 · Updated 2026-01-14 · v2

115.74.194.0/24

Risk Max LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
115.74.194.0
Broadcast
115.74.194.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
4 hits · 4 errors
First / Last seen
2025-03-10 00:50 · 2025-03-10 00:50
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-03-10 → 2025-03-17 · Updated 2026-01-14 · v2

171.243.61.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
171.243.61.0
Broadcast
171.243.61.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.821999999999997 , 106.6257
Hits / Errors
3 hits · 0 errors
First / Last seen
2025-10-02 07:00 · 2025-10-02 07:00
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2

171.255.251.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
171.255.251.0
Broadcast
171.255.251.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0184 , 105.84610000000002
Hits / Errors
3 hits · 0 errors
First / Last seen
2024-12-18 11:12 · 2024-12-18 11:12
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2024-12-16 → 2024-12-23 · Updated 2026-01-14 · v2

171.252.154.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.252.154.0
Broadcast
171.252.154.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-12-17 08:32 · 2025-12-17 08:32
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2

171.234.15.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.234.15.0
Broadcast
171.234.15.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
12.6675 , 108.0378
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-12-17 07:05 · 2025-12-17 07:05
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2

171.225.200.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.225.200.0
Broadcast
171.225.200.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
20.8567 , 106.6826
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-12-14 15:29 · 2025-12-14 15:29
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2025-12-08 → 2025-12-15 · Updated 2026-01-14 · v2

171.250.161.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.250.161.0
Broadcast
171.250.161.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-11-06 12:31 · 2025-11-06 12:31
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-11-03 → 2025-11-10 · Updated 2026-01-14 · v2

171.225.205.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.225.205.0
Broadcast
171.225.205.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
20.8567 , 106.6826
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-11-06 09:47 · 2025-11-06 09:47
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2025-11-03 → 2025-11-10 · Updated 2026-01-14 · v2

115.79.32.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
115.79.32.0
Broadcast
115.79.32.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-11-06 09:33 · 2025-11-06 09:33
Top ASN
AS7552 · Viettel Group
Top organization / ISP
— · VIETELftth
Window / Updated
2025-11-03 → 2025-11-10 · Updated 2026-01-14 · v2

171.236.58.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.236.58.0
Broadcast
171.236.58.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.4823 , 104.729
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-09-11 11:34 · 2025-09-11 11:34
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-09-08 → 2025-09-15 · Updated 2026-01-14 · v2

171.238.90.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.238.90.0
Broadcast
171.238.90.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
20.253 , 105.9749
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-09-08 16:11 · 2025-09-08 16:11
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-09-08 → 2025-09-15 · Updated 2026-01-14 · v2

171.234.14.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.234.14.0
Broadcast
171.234.14.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
12.6675 , 108.0378
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-08-26 16:20 · 2025-08-26 16:20
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-08-25 → 2025-09-01 · Updated 2026-01-14 · v2

115.75.38.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
115.75.38.0
Broadcast
115.75.38.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-06-29 13:19 · 2025-06-29 13:19
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Window / Updated
2025-06-23 → 2025-06-30 · Updated 2026-01-14 · v2

115.72.45.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
115.72.45.0
Broadcast
115.72.45.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.822 , 106.6257
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 12:39 · 2025-05-23 12:39
Top ASN
AS7552 · Viettel Group
Top organization / ISP
— · VIETELmetro
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

171.244.121.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.244.121.0
Broadcast
171.244.121.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 08:52 · 2025-05-23 08:52
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

171.244.123.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.244.123.0
Broadcast
171.244.123.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-23 08:33 · 2025-05-23 08:33
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2

171.239.66.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.239.66.0
Broadcast
171.239.66.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
10.4427 , 105.695
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-02-04 15:59 · 2025-02-04 15:59
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2025-02-03 → 2025-02-10 · Updated 2026-01-14 · v2

171.241.2.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
171.241.2.0
Broadcast
171.241.2.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
21.0184 , 105.8461
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-01-09 23:20 · 2025-01-09 23:20
Top ASN
AS7552 · Viettel Group
Top organization / ISP
Top geo
Window / Updated
2025-01-06 → 2025-01-13 · Updated 2026-01-14 · v2
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