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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: Fonte Informatica ltda · Clear
Snapshot 2026-02-07 Results 4 Page 1 / 1

191.37.1.0/24

Risk Max — LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
191.37.1.0
Broadcast
191.37.1.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-3.4149 , -42.7776
Hits / Errors
4 hits · 0 errors
First / Last seen
2025-09-09 07:13 · 2025-09-14 13:04
Top ASN
AS263346 · Fonte Informatica ltda
Top organization / ISP
Ultrafibra Provedor De Internet Ltda · Fonte Informatica ltda
Top geo
Brazil · Maranhão · Santa Quitéria do Maranhão
Window / Updated
2025-09-08 → 2025-09-15 · Updated 2026-01-14 · v2
Open report →

191.37.0.0/24

Risk Max — LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
191.37.0.0
Broadcast
191.37.0.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-5.3051 , -42.8502
Hits / Errors
4 hits · 0 errors
First / Last seen
2025-09-20 01:12 · 2025-09-20 01:12
Top ASN
AS263346 · Fonte Informatica ltda
Top organization / ISP
L. A. SOUSA-ME · Fonte Informatica ltda
Top geo
Brazil · Piauí · Teresina
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2
Open report →

191.37.5.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
191.37.5.0
Broadcast
191.37.5.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-3.5546 , -43.1057
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-12-17 22:50 · 2025-12-17 22:50
Top ASN
AS263346 · Fonte Informatica ltda
Top organization / ISP
L. A. SOUSA-ME · Fonte Informatica ltda
Top geo
Brazil · Maranhão · Anapurus
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2
Open report →

191.37.4.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
191.37.4.0
Broadcast
191.37.4.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-3.5546 , -43.1057
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-09-29 17:53 · 2025-09-29 17:53
Top ASN
AS263346 · Fonte Informatica ltda
Top organization / ISP
Fonte Informatica ltda · Fonte Informatica ltda
Top geo
Brazil · Maranhão · Anapurus
Window / Updated
2025-09-29 → 2025-10-06 · Updated 2026-01-14 · v2
Open report →