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:
Castelo
·
Clear
Snapshot
2026-02-08
Results
19
Page
1
/
1
2.81.228.0/24
Risk Max
1
LOW
Footprint
0.391
%
Hits
3
Prefix / IP version
/24 · IPv4
Network
2.81.228.0
Broadcast
2.81.228.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
41.8055 , -8.8548
Hits / Errors
3
hits ·
0
errors
First / Last seen
2023-11-06 15:55 · 2023-11-10 09:06
Top ASN
AS3243 ·
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top organization / ISP
PT Comunicacoes S.A.
·
PT Comunicacoes S.A
Top geo
Portugal
·
Viana do Castelo
·
Vila Praia de Âncora
Window / Updated
2023-11-06 → 2023-11-13 · Updated
2026-01-14
· v2
Open report →
188.80.39.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
15
Prefix / IP version
/24 · IPv4
Network
188.80.39.0
Broadcast
188.80.39.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
40.28329999999999 , -7.508
Hits / Errors
15
hits ·
1
errors
First / Last seen
2024-06-13 12:57 · 2024-06-13 12:58
Top ASN
AS3243 ·
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top organization / ISP
PT Comunicacoes S.A.
·
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A
Top geo
Portugal
·
Castelo Branco
·
Covilha
Window / Updated
2024-06-10 → 2024-06-17 · Updated
2026-01-14
· v2
Open report →
170.81.17.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
170.81.17.0
Broadcast
170.81.17.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-20.3623 , -41.2662
Hits / Errors
2
hits ·
0
errors
First / Last seen
2025-12-14 02:28 · 2025-12-14 02:28
Top ASN
AS266398 ·
SPEEDY NET TELECON LTDA-ME
Top organization / ISP
Speedy NET Telecon Ltda-me
·
Speedy NET Telecon Ltda-me
Top geo
Brazil
·
Espírito Santo
·
Conceição do Castelo
Window / Updated
2025-12-08 → 2025-12-15 · Updated
2026-01-14
· v2
Open report →
31.129.22.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
31.129.22.0
Broadcast
31.129.22.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
41.6929 , -8.8391
Hits / Errors
2
hits ·
0
errors
First / Last seen
2025-10-02 06:31 · 2025-10-02 06:31
Top ASN
AS215540 ·
GLOBAL CONNECTIVITY SOLUTIONS LLP
Top organization / ISP
Global Internet Solutions LLC
·
Global Connectivity Solutions LLP
Top geo
Portugal
·
Viana do Castelo
·
Viana do Castelo
Window / Updated
2025-09-29 → 2025-10-06 · Updated
2026-01-14
· v2
Open report →
24.152.79.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
24.152.79.0
Broadcast
24.152.79.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-20.5367 , -41.2047
Hits / Errors
2
hits ·
0
errors
First / Last seen
2025-09-22 06:54 · 2025-09-22 06:54
Top ASN
AS270487 ·
JC NET TELECOMUNICACOES LTDA ME
Top organization / ISP
JC NET TELECOMUNICACOES LTDA ME
·
JC NET TELECOMUNICACOES LTDA ME
Top geo
Brazil
·
Espírito Santo
·
Castelo
Window / Updated
2025-09-22 → 2025-09-29 · Updated
2026-01-14
· v2
Open report →
143.208.63.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
143.208.63.0
Broadcast
143.208.63.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-21.2307 , -51.5712
Hits / Errors
2
hits ·
0
errors
First / Last seen
2025-09-06 19:14 · 2025-09-06 19:14
Top ASN
AS28265 ·
ABCREDE PROVEDOR DE INTERNET LTDA
Top organization / ISP
Abcrede Provedor De Internet Ltda
·
Abcrede Provedor De Internet Eireli
Top geo
Brazil
·
São Paulo
·
Monte Castelo
Window / Updated
2025-09-01 → 2025-09-08 · Updated
2026-01-14
· v2
Open report →
170.254.119.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
170.254.119.0
Broadcast
170.254.119.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-20.5367 , -41.2047
Hits / Errors
1
hits ·
1
errors
First / Last seen
2025-12-28 10:02 · 2025-12-28 10:02
Top ASN
AS262374 ·
FAZZY INTERNET
Top organization / ISP
3X TELECOMUNICAÇÕES LTDA
·
Fazzy Internet
Top geo
Brazil
·
Espírito Santo
·
Castelo
Window / Updated
2025-12-22 → 2025-12-29 · Updated
2026-01-14
· v2
Open report →
177.52.255.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
177.52.255.0
Broadcast
177.52.255.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-22.9533 , -53.2972
Hits / Errors
1
hits ·
1
errors
First / Last seen
2025-12-14 05:22 · 2025-12-14 05:22
Top ASN
AS262286 ·
Netw Telecom
Top organization / ISP
Netw Telecom
·
Netw Telecom
Top geo
Brazil
·
Paraná
·
Santa Cruz de Monte Castelo
Window / Updated
2025-12-08 → 2025-12-15 · Updated
2026-01-14
· v2
Open report →
170.254.116.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
170.254.116.0
Broadcast
170.254.116.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-20.5367 , -41.2047
Hits / Errors
1
hits ·
1
errors
First / Last seen
2025-11-23 05:48 · 2025-11-23 05:48
Top ASN
AS262374 ·
FAZZY INTERNET
Top organization / ISP
3X TELECOMUNICAÇÕES LTDA
·
Fazzy Internet
Top geo
Brazil
·
Espírito Santo
·
Castelo
Window / Updated
2025-11-17 → 2025-11-24 · Updated
2026-01-14
· v2
Open report →
191.6.3.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
191.6.3.0
Broadcast
191.6.3.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-20.3623 , -41.2662
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-10-28 11:05 · 2025-10-28 11:05
Top ASN
AS263545 ·
BETINI NET TELECOM LTDA
Top organization / ISP
Betini NET Telecom Ltda
·
Betini NET Telecom Ltda
Top geo
Brazil
·
Espírito Santo
·
Conceição do Castelo
Window / Updated
2025-10-27 → 2025-11-03 · Updated
2026-01-14
· v2
Open report →
45.167.166.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
45.167.166.0
Broadcast
45.167.166.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-5.2158 , -41.5574
Hits / Errors
1
hits ·
1
errors
First / Last seen
2025-10-12 20:52 · 2025-10-12 20:52
Top ASN
AS268017 ·
RYAN RONERY SOARES - ME
Top organization / ISP
Ryan Ronery Soares - ME
·
Ryan Ronery Soares - ME
Top geo
Brazil
·
Piauí
·
Castelo do Piauí
Window / Updated
2025-10-06 → 2025-10-13 · Updated
2026-01-14
· v2
Open report →
45.167.165.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
45.167.165.0
Broadcast
45.167.165.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-5.2158 , -41.5574
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-10-05 00:32 · 2025-10-05 00:32
Top ASN
AS268017 ·
RYAN RONERY SOARES - ME
Top organization / ISP
Ryan Ronery Soares - ME
·
Ryan Ronery Soares - ME
Top geo
Brazil
·
Piauí
·
Castelo do Piauí
Window / Updated
2025-09-29 → 2025-10-06 · Updated
2026-01-14
· v2
Open report →
143.208.60.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
143.208.60.0
Broadcast
143.208.60.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-21.2307 , -51.5712
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-30 11:02 · 2025-09-30 11:02
Top ASN
AS28265 ·
ABCREDE PROVEDOR DE INTERNET LTDA
Top organization / ISP
Abcrede Provedor De Internet Ltda
·
Abcrede Provedor De Internet Eireli
Top geo
Brazil
·
São Paulo
·
Monte Castelo
Window / Updated
2025-09-29 → 2025-10-06 · Updated
2026-01-14
· v2
Open report →
143.208.61.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
143.208.61.0
Broadcast
143.208.61.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-21.2307 , -51.5712
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-09-22 21:53 · 2025-09-22 21:53
Top ASN
AS28265 ·
ABCREDE PROVEDOR DE INTERNET LTDA
Top organization / ISP
Abcrede Provedor De Internet Ltda
·
Abcrede Provedor De Internet Eireli
Top geo
Brazil
·
São Paulo
·
Monte Castelo
Window / Updated
2025-09-22 → 2025-09-29 · Updated
2026-01-14
· v2
Open report →
45.167.164.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
45.167.164.0
Broadcast
45.167.164.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-5.2158 , -41.5574
Hits / Errors
1
hits ·
1
errors
First / Last seen
2025-09-10 23:48 · 2025-09-10 23:48
Top ASN
AS268017 ·
RYAN RONERY SOARES - ME
Top organization / ISP
Ryan Ronery Soares - ME
·
Ryan Ronery Soares - ME
Top geo
Brazil
·
Piauí
·
Castelo do Piauí
Window / Updated
2025-09-08 → 2025-09-15 · Updated
2026-01-14
· v2
Open report →
2.81.116.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
2.81.116.0
Broadcast
2.81.116.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
39.8254 , -7.4845
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-08-01 20:37 · 2025-08-01 20:37
Top ASN
AS3243 ·
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top organization / ISP
PT Comunicacoes S.A.
·
PT Comunicacoes S.A
Top geo
Portugal
·
Castelo Branco
·
Castelo Branco
Window / Updated
2025-07-28 → 2025-08-04 · Updated
2026-01-14
· v2
Open report →
45.167.167.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
45.167.167.0
Broadcast
45.167.167.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
-5.2158 , -41.5574
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-07-22 14:35 · 2025-07-22 14:35
Top ASN
AS268017 ·
RYAN RONERY SOARES - ME
Top organization / ISP
Ryan Ronery Soares - ME
·
Ryan Ronery Soares - ME
Top geo
Brazil
·
Piauí
·
Castelo do Piauí
Window / Updated
2025-07-21 → 2025-07-28 · Updated
2026-01-14
· v2
Open report →
2.83.229.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
2.83.229.0
Broadcast
2.83.229.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
41.6929 , -8.8391
Hits / Errors
1
hits ·
0
errors
First / Last seen
2025-05-08 18:40 · 2025-05-08 18:40
Top ASN
AS3243 ·
MEO - SERVICOS DE COMUNICACOES E MULTIMEDIA S.A.
Top organization / ISP
PT Comunicacoes S.A.
·
PT Comunicacoes S.A
Top geo
Portugal
·
Viana do Castelo
·
Viana do Castelo
Window / Updated
2025-05-05 → 2025-05-12 · Updated
2026-01-14
· v2
Open report →
185.83.213.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
185.83.213.0
Broadcast
185.83.213.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
41.6929 , -8.8391
Hits / Errors
1
hits ·
0
errors
First / Last seen
2024-05-17 20:37 · 2024-05-17 20:37
Top ASN
AS44222 ·
Nuno Felgueiras
Top organization / ISP
NFCLOUD, Unipessoal Lda
·
CLOUDITY Network
Top geo
Portugal
·
Viana do Castelo
·
Viana do Castelo
Window / Updated
2024-05-13 → 2024-05-20 · Updated
2026-01-14
· v2
Open report →
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