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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 2026-03-08 Results 6 Page 1 / 1

138.0.75.0/24

Risk Max — LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
138.0.75.0
Broadcast
138.0.75.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
-3.6867 , -40.3481
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 02:00
Top ASN
AS264531 · HET INTERNET LTDA
Top organization / ISP
HET INTERNET LTDA · Ultra Telecom
Top geo
Brazil · Ceará · Sobral
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

200.9.19.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
200.9.19.0
Broadcast
200.9.19.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-16.6391 , -49.2622
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-28 02:00
Top ASN
AS266224 · ULTRA TELECOMUNICACOES LTDA
Top organization / ISP
Ultra Telecomunicacoes Ltda · Ultra Telecomunicacoes Ltda
Top geo
Brazil · Goiás · Goiânia
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

200.9.17.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
200.9.17.0
Broadcast
200.9.17.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-16.6391 , -49.2622
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-26 02:00
Top ASN
AS266224 · ULTRA TELECOMUNICACOES LTDA
Top organization / ISP
Ultra Telecomunicacoes Ltda · Ultra Telecomunicacoes Ltda
Top geo
Brazil · Goiás · Goiânia
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

200.9.18.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
200.9.18.0
Broadcast
200.9.18.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-16.6391 , -49.2622
Hits / Errors
2 hits · 1 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
AS266224 · ULTRA TELECOMUNICACOES LTDA
Top organization / ISP
Ultra Telecomunicacoes Ltda · Ultra Telecomunicacoes Ltda
Top geo
Brazil · Goiás · Goiânia
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

187.19.17.0/24

Risk Max — LOW Footprint 0.391% Hits 3
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
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-01 02:00
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
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

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
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS264531 · HET INTERNET LTDA
Top organization / ISP
HET INTERNET LTDA · Ultra Telecom
Top geo
Brazil · Ceará · Sobral
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →