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:
Vietnam Datacommunications Company
·
Clear
Snapshot
2026-03-17
Results
—
Page
5
/
5
222.253.185.0/24
Risk Max
—
LOW
Footprint
5.078
%
Hits
21
Prefix / IP version
/24 · IPv4
Network
222.253.185.0
Broadcast
222.253.185.255
Observed IPs / Subnet size
13
observed ·
256
total
Centroid
10.822 , 106.62570000000001
Hits / Errors
21
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.21.18.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
29
Prefix / IP version
/24 · IPv4
Network
123.21.18.0
Broadcast
123.21.18.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000002
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
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.23.138.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
24
Prefix / IP version
/24 · IPv4
Network
123.23.138.0
Broadcast
123.23.138.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
21.0394 , 105.79299999999999
Hits / Errors
24
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Hanoi
·
Dich Vong
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.21.31.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
22
Prefix / IP version
/24 · IPv4
Network
123.21.31.0
Broadcast
123.21.31.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000001
Hits / Errors
22
hits ·
1
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.21.193.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
22
Prefix / IP version
/24 · IPv4
Network
123.21.193.0
Broadcast
123.21.193.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
10.822000000000001 , 106.6257
Hits / Errors
22
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.23.237.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
21
Prefix / IP version
/24 · IPv4
Network
123.23.237.0
Broadcast
123.23.237.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000001
Hits / Errors
21
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.17.183.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
20
Prefix / IP version
/24 · IPv4
Network
123.17.183.0
Broadcast
123.17.183.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
21.368655 , 105.298735
Hits / Errors
20
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Phú Thọ Province
·
Phú Thọ
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.21.30.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
19
Prefix / IP version
/24 · IPv4
Network
123.21.30.0
Broadcast
123.21.30.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000002
Hits / Errors
19
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.23.224.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
18
Prefix / IP version
/24 · IPv4
Network
123.23.224.0
Broadcast
123.23.224.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
10.822 , 106.62570000000001
Hits / Errors
18
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.23.225.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
14
Prefix / IP version
/24 · IPv4
Network
123.23.225.0
Broadcast
123.23.225.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000004
Hits / Errors
14
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.17.77.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
26
Prefix / IP version
/24 · IPv4
Network
123.17.77.0
Broadcast
123.17.77.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
21.29974615384615 , 105.60350384615387
Hits / Errors
26
hits ·
1
errors
First / Last seen
2026-03-03 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Vĩnh Phúc Province
·
Vĩnh Yên
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.23.236.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
21
Prefix / IP version
/24 · IPv4
Network
123.23.236.0
Broadcast
123.23.236.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
10.822 , 106.62570000000001
Hits / Errors
21
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.17.176.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
14
Prefix / IP version
/24 · IPv4
Network
123.17.176.0
Broadcast
123.17.176.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
21.3956 , 105.22589999999998
Hits / Errors
14
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Phú Thọ Province
·
Phú Thọ
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.17.188.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
14
Prefix / IP version
/24 · IPv4
Network
123.17.188.0
Broadcast
123.17.188.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
21.203135714285715 , 105.74615000000001
Hits / Errors
14
hits ·
3
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Phú Thọ Province
·
Phú Thọ
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.253.182.0/24
Risk Max
—
LOW
Footprint
3.906
%
Hits
18
Prefix / IP version
/24 · IPv4
Network
222.253.182.0
Broadcast
222.253.182.255
Observed IPs / Subnet size
10
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000002
Hits / Errors
18
hits ·
1
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.253.220.0/24
Risk Max
—
LOW
Footprint
3.906
%
Hits
18
Prefix / IP version
/24 · IPv4
Network
222.253.220.0
Broadcast
222.253.220.255
Observed IPs / Subnet size
10
observed ·
256
total
Centroid
10.822 , 106.6257
Hits / Errors
18
hits ·
1
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.17.191.0/24
Risk Max
—
LOW
Footprint
3.906
%
Hits
17
Prefix / IP version
/24 · IPv4
Network
123.17.191.0
Broadcast
123.17.191.255
Observed IPs / Subnet size
10
observed ·
256
total
Centroid
21.1737 , 105.82571764705882
Hits / Errors
17
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Phú Thọ Province
·
Phú Thọ
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.253.228.0/24
Risk Max
—
LOW
Footprint
3.516
%
Hits
17
Prefix / IP version
/24 · IPv4
Network
222.253.228.0
Broadcast
222.253.228.255
Observed IPs / Subnet size
9
observed ·
256
total
Centroid
10.822 , 106.6257
Hits / Errors
17
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-08 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.17.71.0/24
Risk Max
—
LOW
Footprint
3.516
%
Hits
13
Prefix / IP version
/24 · IPv4
Network
123.17.71.0
Broadcast
123.17.71.255
Observed IPs / Subnet size
9
observed ·
256
total
Centroid
21.265984615384614 , 105.63261538461539
Hits / Errors
13
hits ·
1
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Vĩnh Phúc Province
·
Vĩnh Yên
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.253.229.0/24
Risk Max
—
LOW
Footprint
3.516
%
Hits
11
Prefix / IP version
/24 · IPv4
Network
222.253.229.0
Broadcast
222.253.229.255
Observed IPs / Subnet size
9
observed ·
256
total
Centroid
10.822000000000001 , 106.6257
Hits / Errors
11
hits ·
0
errors
First / Last seen
2026-03-02 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.253.244.0/24
Risk Max
—
LOW
Footprint
2.734
%
Hits
8
Prefix / IP version
/24 · IPv4
Network
222.253.244.0
Broadcast
222.253.244.255
Observed IPs / Subnet size
7
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000002
Hits / Errors
8
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.253.246.0/24
Risk Max
—
LOW
Footprint
1.953
%
Hits
11
Prefix / IP version
/24 · IPv4
Network
222.253.246.0
Broadcast
222.253.246.255
Observed IPs / Subnet size
5
observed ·
256
total
Centroid
10.821999999999997 , 106.62570000000001
Hits / Errors
11
hits ·
0
errors
First / Last seen
2026-03-02 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
123.19.191.0/24
Risk Max
—
LOW
Footprint
1.953
%
Hits
5
Prefix / IP version
/24 · IPv4
Network
123.19.191.0
Broadcast
123.19.191.255
Observed IPs / Subnet size
5
observed ·
256
total
Centroid
16.0685 , 108.22150000000002
Hits / Errors
5
hits ·
0
errors
First / Last seen
2026-03-01 02:00 · 2026-03-08 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Da Nang
·
Da Nang
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
222.253.247.0/24
Risk Max
—
LOW
Footprint
1.562
%
Hits
4
Prefix / IP version
/24 · IPv4
Network
222.253.247.0
Broadcast
222.253.247.255
Observed IPs / Subnet size
4
observed ·
256
total
Centroid
10.822 , 106.6257
Hits / Errors
4
hits ·
0
errors
First / Last seen
2026-03-03 02:00 · 2026-03-09 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Ho Chi Minh
·
Ho Chi Minh City
Window / Updated
2026-03-02 → 2026-03-09 · Updated
2026-03-13
· v2
Open report →
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