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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.
Active filter: Ultra Telecom · Clear
Snapshot 2026-01-21 Results 5 Page 1 / 1

138.0.74.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
138.0.74.0
Broadcast
138.0.74.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-3.6867 , -40.3481
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-28 23:43 · 2025-11-28 23:43
Top ASN
AS264531 · HET INTERNET LTDA
Top organization / ISP
HET INTERNET LTDA · Ultra Telecom
Top geo
Brazil · Ceará · Sobral
Window / Updated
2025-11-24 → 2025-12-01 · Updated 2026-01-14 · v2
Open report →

138.0.75.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
138.0.75.0
Broadcast
138.0.75.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-3.6867 , -40.3481
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-10-15 00:33 · 2025-10-15 00:33
Top ASN
AS264531 · HET INTERNET LTDA
Top organization / ISP
HET INTERNET LTDA · Ultra Telecom
Top geo
Brazil · Ceará · Sobral
Window / Updated
2025-10-13 → 2025-10-20 · Updated 2026-01-14 · v2
Open report →

200.9.17.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
200.9.17.0
Broadcast
200.9.17.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-16.6802 , -49.2564
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-10-02 11:27 · 2025-10-02 11:27
Top ASN
AS266224 · ULTRA TELECOMUNICACOES LTDA
Top organization / ISP
Ultra Telecomunicacoes Ltda · Ultra Telecomunicacoes Ltda
Top geo
Brazil · Goiás · Goiânia
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2
Open report →

187.19.17.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
187.19.17.0
Broadcast
187.19.17.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-21.5862 , -43.0191
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-09-21 04:43 · 2025-09-21 04:43
Top ASN
AS28125 · Elo.Net Tecnologia Ltda. - ME
Top organization / ISP
Useultra Telecom Ltda · Elo.Net Tecnologia Ltda. - ME
Top geo
Brazil · Minas Gerais · São João Nepomuceno
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2
Open report →

200.9.19.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
200.9.19.0
Broadcast
200.9.19.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-16.6802 , -49.2564
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-20 12:43 · 2025-07-20 12:43
Top ASN
AS266224 · ULTRA TELECOMUNICACOES LTDA
Top organization / ISP
Ultra Telecomunicacoes Ltda · Ultra Telecomunicacoes Ltda
Top geo
Brazil · Goiás · Goiânia
Window / Updated
2025-07-14 → 2025-07-21 · Updated 2026-01-14 · v2
Open report →