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:
datacomm
·
Clear
Snapshot
2026-03-06
Results
184
Page
5
/
5
123.17.176.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
24
Prefix / IP version
/24 · IPv4
Network
123.17.176.0
Broadcast
123.17.176.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
21.3956 , 105.22589999999998
Hits / Errors
24
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.17.178.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
21
Prefix / IP version
/24 · IPv4
Network
123.17.178.0
Broadcast
123.17.178.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
21.267290476190478 , 105.57273333333333
Hits / Errors
21
hits ·
1
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.17.190.0/24
Risk Max
—
LOW
Footprint
4.688
%
Hits
20
Prefix / IP version
/24 · IPv4
Network
123.17.190.0
Broadcast
123.17.190.255
Observed IPs / Subnet size
12
observed ·
256
total
Centroid
21.314765 , 105.44440499999999
Hits / Errors
20
hits ·
1
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.21.19.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
35
Prefix / IP version
/24 · IPv4
Network
123.21.19.0
Broadcast
123.21.19.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
10.822 , 106.6257
Hits / Errors
35
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.23.138.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
22
Prefix / IP version
/24 · IPv4
Network
123.23.138.0
Broadcast
123.23.138.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
21.0394 , 105.79300000000002
Hits / Errors
22
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.21.23.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
22
Prefix / IP version
/24 · IPv4
Network
123.21.23.0
Broadcast
123.21.23.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000001
Hits / Errors
22
hits ·
1
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.23.136.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
22
Prefix / IP version
/24 · IPv4
Network
123.23.136.0
Broadcast
123.23.136.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
21.0394 , 105.79300000000002
Hits / Errors
22
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.21.22.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
21
Prefix / IP version
/24 · IPv4
Network
123.21.22.0
Broadcast
123.21.22.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
10.822 , 106.62570000000001
Hits / Errors
21
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.21.25.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
20
Prefix / IP version
/24 · IPv4
Network
123.21.25.0
Broadcast
123.21.25.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
10.822 , 106.62570000000001
Hits / Errors
20
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.17.78.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
19
Prefix / IP version
/24 · IPv4
Network
123.17.78.0
Broadcast
123.17.78.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
21.280199999999997 , 105.62035789473684
Hits / Errors
19
hits ·
0
errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.23.140.0/24
Risk Max
—
LOW
Footprint
4.297
%
Hits
16
Prefix / IP version
/24 · IPv4
Network
123.23.140.0
Broadcast
123.23.140.255
Observed IPs / Subnet size
11
observed ·
256
total
Centroid
9.948270000000003 , 106.516
Hits / Errors
16
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
AS45899 ·
VNPT Corp
Top organization / ISP
Vietnam Datacommunications Company
·
VietNam Post and Telecom Corporation
Top geo
Vietnam
·
Vinh Long
·
Thạnh Phú
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.17.184.0/24
Risk Max
—
LOW
Footprint
3.906
%
Hits
19
Prefix / IP version
/24 · IPv4
Network
123.17.184.0
Broadcast
123.17.184.255
Observed IPs / Subnet size
10
observed ·
256
total
Centroid
21.338873684210526 , 105.37923684210527
Hits / Errors
19
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
222.253.182.0/24
Risk Max
—
LOW
Footprint
3.906
%
Hits
19
Prefix / IP version
/24 · IPv4
Network
222.253.182.0
Broadcast
222.253.182.255
Observed IPs / Subnet size
10
observed ·
256
total
Centroid
10.822 , 106.62570000000001
Hits / Errors
19
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
222.253.251.0/24
Risk Max
—
LOW
Footprint
3.906
%
Hits
15
Prefix / IP version
/24 · IPv4
Network
222.253.251.0
Broadcast
222.253.251.255
Observed IPs / Subnet size
10
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000002
Hits / Errors
15
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
222.253.220.0/24
Risk Max
—
LOW
Footprint
3.906
%
Hits
15
Prefix / IP version
/24 · IPv4
Network
222.253.220.0
Broadcast
222.253.220.255
Observed IPs / Subnet size
10
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000002
Hits / Errors
15
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.17.185.0/24
Risk Max
—
LOW
Footprint
3.516
%
Hits
16
Prefix / IP version
/24 · IPv4
Network
123.17.185.0
Broadcast
123.17.185.255
Observed IPs / Subnet size
9
observed ·
256
total
Centroid
21.294556250000003 , 105.49903125
Hits / Errors
16
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
222.253.247.0/24
Risk Max
—
LOW
Footprint
3.516
%
Hits
15
Prefix / IP version
/24 · IPv4
Network
222.253.247.0
Broadcast
222.253.247.255
Observed IPs / Subnet size
9
observed ·
256
total
Centroid
10.822 , 106.62570000000001
Hits / Errors
15
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
222.253.245.0/24
Risk Max
—
LOW
Footprint
3.125
%
Hits
20
Prefix / IP version
/24 · IPv4
Network
222.253.245.0
Broadcast
222.253.245.255
Observed IPs / Subnet size
8
observed ·
256
total
Centroid
10.822 , 106.62570000000001
Hits / Errors
20
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
222.253.228.0/24
Risk Max
—
LOW
Footprint
3.125
%
Hits
12
Prefix / IP version
/24 · IPv4
Network
222.253.228.0
Broadcast
222.253.228.255
Observed IPs / Subnet size
8
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000001
Hits / Errors
12
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.17.188.0/24
Risk Max
—
LOW
Footprint
3.125
%
Hits
8
Prefix / IP version
/24 · IPv4
Network
123.17.188.0
Broadcast
123.17.188.255
Observed IPs / Subnet size
8
observed ·
256
total
Centroid
21.260875 , 105.590075
Hits / Errors
8
hits ·
1
errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
123.19.191.0/24
Risk Max
—
LOW
Footprint
2.734
%
Hits
22
Prefix / IP version
/24 · IPv4
Network
123.19.191.0
Broadcast
123.19.191.255
Observed IPs / Subnet size
7
observed ·
256
total
Centroid
16.0685 , 108.22150000000002
Hits / Errors
22
hits ·
1
errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
222.253.229.0/24
Risk Max
—
LOW
Footprint
2.344
%
Hits
15
Prefix / IP version
/24 · IPv4
Network
222.253.229.0
Broadcast
222.253.229.255
Observed IPs / Subnet size
6
observed ·
256
total
Centroid
10.822000000000001 , 106.62570000000002
Hits / Errors
15
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
222.253.244.0/24
Risk Max
—
LOW
Footprint
2.344
%
Hits
9
Prefix / IP version
/24 · IPv4
Network
222.253.244.0
Broadcast
222.253.244.255
Observed IPs / Subnet size
6
observed ·
256
total
Centroid
10.822 , 106.6257
Hits / Errors
9
hits ·
0
errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
222.253.246.0/24
Risk Max
—
LOW
Footprint
1.562
%
Hits
7
Prefix / IP version
/24 · IPv4
Network
222.253.246.0
Broadcast
222.253.246.255
Observed IPs / Subnet size
4
observed ·
256
total
Centroid
10.822 , 106.62569999999998
Hits / Errors
7
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 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
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
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