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:
O2 Czech Republic
·
Clear
Snapshot
2026-01-20
Results
65
Page
2
/
2
176.102.128.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
176.102.128.0
Broadcast
176.102.128.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0155 , 17.0327
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-30 05:11 · 2025-09-30 05:11
Top ASN
AS42908 ·
ORIGINAL AS CZ-NORDICTELECOMREGIONAL
Top organization / ISP
Nordic Telecom Regional s.r.o
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
Olomoucký kraj
·
Rapotín
Window / Updated
2025-09-29 → 2025-10-06 · Updated
2026-01-14
· v2
Open report →
109.81.2.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
109.81.2.0
Broadcast
109.81.2.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0948 , 14.4785
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-22 07:43 · 2025-09-22 07:43
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
— ·
CZ.CZNET
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-09-22 → 2025-09-29 · Updated
2026-01-14
· v2
Open report →
88.102.208.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
88.102.208.0
Broadcast
88.102.208.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0471 , 14.4523
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-21 09:13 · 2025-09-21 09:13
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
Telefonica O2 Czech Republic, a.s.
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-09-15 → 2025-09-22 · Updated
2026-01-14
· v2
Open report →
109.81.169.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
109.81.169.0
Broadcast
109.81.169.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0766 , 14.4464
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-20 01:31 · 2025-09-20 01:31
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CGN FIX Broadband Praha-vl
·
O2 Czech Republic a.s.
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-09-15 → 2025-09-22 · Updated
2026-01-14
· v2
Open report →
90.182.189.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
90.182.189.0
Broadcast
90.182.189.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
49.4031 , 15.5924
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-15 08:42 · 2025-09-15 08:42
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
O2 Czech Republic
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
Kraj Vysočina
·
Jihlava
Window / Updated
2025-09-15 → 2025-09-22 · Updated
2026-01-14
· v2
Open report →
86.63.217.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
86.63.217.0
Broadcast
86.63.217.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.1155 , 14.4124
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-10 09:07 · 2025-09-10 09:07
Top ASN
AS16246 ·
O2 Czech Republic, a.s.
Top organization / ISP
WendulkaNet
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-09-08 → 2025-09-15 · Updated
2026-01-14
· v2
Open report →
90.182.45.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
90.182.45.0
Broadcast
90.182.45.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0471 , 14.4523
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-09 12:45 · 2025-09-09 12:45
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
O2 Czech Republic
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-09-08 → 2025-09-15 · Updated
2026-01-14
· v2
Open report →
109.81.168.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
109.81.168.0
Broadcast
109.81.168.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0766 , 14.4464
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-08-25 14:54 · 2025-08-25 14:54
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CGN FIX Broadband Praha-vl
·
O2 Czech Republic a.s.
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-08-25 → 2025-09-01 · Updated
2026-01-14
· v2
Open report →
80.188.30.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
80.188.30.0
Broadcast
80.188.30.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0985 , 14.4524
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-08-10 14:01 · 2025-08-10 14:01
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
O2 Czech Republic
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-08-04 → 2025-08-11 · Updated
2026-01-14
· v2
Open report →
176.102.152.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
176.102.152.0
Broadcast
176.102.152.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
49.5864 , 17.2537
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-07-30 23:51 · 2025-07-30 23:51
Top ASN
AS42908 ·
ORIGINAL AS CZ-NORDICTELECOMREGIONAL
Top organization / ISP
Nordic Telecom Regional s.r.o
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
Olomoucký kraj
·
Olomouc
Window / Updated
2025-07-28 → 2025-08-04 · Updated
2026-01-14
· v2
Open report →
188.175.108.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
188.175.108.0
Broadcast
188.175.108.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
49.6809 , 18.3456
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-06-24 20:38 · 2025-06-24 20:38
Top ASN
AS16246 ·
O2 Czech Republic, a.s.
Top organization / ISP
— ·
RIO Media
Top geo
Czechia
·
Moravskoslezský kraj
·
Frýdek-Místek
Window / Updated
2025-06-23 → 2025-06-30 · Updated
2026-01-14
· v2
Open report →
80.87.187.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
80.87.187.0
Broadcast
80.87.187.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
48.8524 , 16.8238
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-05-11 14:05 · 2025-05-11 14:05
Top ASN
AS42908 ·
ORIGINAL AS CZ-NORDICTELECOMREGIONAL
Top organization / ISP
Nordictelecomregional
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
South Moravian
·
Rakvice
Window / Updated
2025-05-05 → 2025-05-12 · Updated
2026-01-14
· v2
Open report →
90.176.169.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
90.176.169.0
Broadcast
90.176.169.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0471 , 14.4523
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-05-08 12:33 · 2025-05-08 12:33
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
Telefonica O2 Czech Republic, a.s.
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-05-05 → 2025-05-12 · Updated
2026-01-14
· v2
Open report →
88.103.173.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
88.103.173.0
Broadcast
88.103.173.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0883 , 14.4124
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-04-25 05:25 · 2025-04-25 05:25
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
O2 Czech Republic
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-04-21 → 2025-04-28 · Updated
2026-01-14
· v2
Open report →
90.177.198.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
90.177.198.0
Broadcast
90.177.198.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
49.3503 , 16.0186
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-04-21 03:11 · 2025-04-21 03:11
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
Telefonica O2 Czech Republic, a.s.
Top geo
Czechia
·
Kraj Vysočina
·
Velké Meziříčí
Window / Updated
2025-04-21 → 2025-04-28 · Updated
2026-01-14
· v2
Open report →
85.71.137.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
85.71.137.0
Broadcast
85.71.137.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
49.8542 , 18.2633
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-04-10 09:30 · 2025-04-10 09:30
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
xDSL services
·
Telefonica O2 Czech Republic, a.s.
Top geo
Czechia
·
Moravskoslezský kraj
·
Ostrava
Window / Updated
2025-04-07 → 2025-04-14 · Updated
2026-01-14
· v2
Open report →
90.183.144.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
90.183.144.0
Broadcast
90.183.144.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0471 , 14.4523
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-04-06 22:08 · 2025-04-06 22:08
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
O2 Czech Republic
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-03-31 → 2025-04-07 · Updated
2026-01-14
· v2
Open report →
88.101.212.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
88.101.212.0
Broadcast
88.101.212.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0766 , 14.4464
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-04-01 05:53 · 2025-04-01 05:53
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
Telefonica O2 Czech Republic, a.s.
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-03-31 → 2025-04-07 · Updated
2026-01-14
· v2
Open report →
88.101.93.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
88.101.93.0
Broadcast
88.101.93.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.4363 , 15.4625
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-03-21 15:24 · 2025-03-21 15:24
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
Telefonica O2 Czech Republic, a.s.
Top geo
Czechia
·
Královéhradecký kraj
·
Lužany
Window / Updated
2025-03-17 → 2025-03-24 · Updated
2026-01-14
· v2
Open report →
88.100.231.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
88.100.231.0
Broadcast
88.100.231.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.0687 , 14.3947
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-03-02 11:34 · 2025-03-02 11:34
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
Telefonica O2 Czech Republic, a.s.
Top geo
Czechia
·
Prague
·
Prague
Window / Updated
2025-02-24 → 2025-03-03 · Updated
2026-01-14
· v2
Open report →
88.100.39.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
88.100.39.0
Broadcast
88.100.39.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
49.8792 , 18.3709
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-02-17 18:24 · 2025-02-17 18:24
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
Telefonica O2 Czech Republic, a.s.
Top geo
Czechia
·
Moravskoslezský kraj
·
Bohumín
Window / Updated
2025-02-17 → 2025-02-24 · Updated
2026-01-14
· v2
Open report →
185.82.236.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
185.82.236.0
Broadcast
185.82.236.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
49.5487 , 16.7223
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-01-06 02:30 · 2025-01-06 02:30
Top ASN
AS42908 ·
ORIGINAL AS CZ-NORDICTELECOMREGIONAL
Top organization / ISP
O2 Czech Republic
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
South Moravian
·
Šebetov
Window / Updated
2025-01-06 → 2025-01-13 · Updated
2026-01-14
· v2
Open report →
31.10.63.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
31.10.63.0
Broadcast
31.10.63.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
49.9163 , 16.7551
Hits / Errors
1
hits ·
0
errors
First / Last seen
2024-06-05 12:43 · 2024-06-05 12:43
Top ASN
AS42908 ·
ORIGINAL AS CZ-NORDICTELECOMREGIONAL
Top organization / ISP
Nordictelecomregional
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
Pardubický kraj
·
Lanškroun
Window / Updated
2024-06-03 → 2024-06-10 · Updated
2026-01-14
· v2
Open report →
90.180.137.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
90.180.137.0
Broadcast
90.180.137.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.2336 , 12.8695
Hits / Errors
1
hits ·
0
errors
First / Last seen
2024-02-01 17:22 · 2024-02-01 17:22
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
CZ.CZNET
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
Karlovarský kraj
·
Karlovy Vary
Window / Updated
2024-01-29 → 2024-02-05 · Updated
2026-01-14
· v2
Open report →
83.208.252.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
83.208.252.0
Broadcast
83.208.252.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.1653 , 14.9411
Hits / Errors
1
hits ·
0
errors
First / Last seen
2024-01-01 00:47 · 2024-01-01 00:47
Top ASN
AS5610 ·
O2 Czech Republic, a.s.
Top organization / ISP
PROfi Internet AKTIV HD
·
O2 Czech Republic, a.s.
Top geo
Czechia
·
Central Bohemia
·
Hradišťko
Window / Updated
2024-01-01 → 2024-01-08 · Updated
2026-01-14
· v2
Open report →
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