DigitalOcean Referral Badge
cloud1
cloud2
cloud3
cloud4
cloud5
cloud6

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.

177.21.80.0/24

Risk Max LOW Footprint 4.297% Hits 15
Prefix / IP version
/24 · IPv4
Network
177.21.80.0
Broadcast
177.21.80.255
Observed IPs / Subnet size
11 observed · 256 total
Centroid
-23.074099999999998 , -52.468399999999995
Hits / Errors
15 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-03-02 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.21.95.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
177.21.95.0
Broadcast
177.21.95.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-23.0741 , -52.4684
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-28 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.21.81.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.21.81.0
Broadcast
177.21.81.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.0741 , -52.4684
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.21.86.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.21.86.0
Broadcast
177.21.86.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.0741 , -52.4684
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.21.91.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.21.91.0
Broadcast
177.21.91.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.0741 , -52.4684
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.33.212.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
187.33.212.0
Broadcast
187.33.212.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.0741 , -52.4684
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.21.85.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.21.85.0
Broadcast
177.21.85.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.0741 , -52.4684
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.21.84.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.21.84.0
Broadcast
177.21.84.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.0741 , -52.4684
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.33.209.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
187.33.209.0
Broadcast
187.33.209.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.0741 , -52.4684
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.21.82.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.21.82.0
Broadcast
177.21.82.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-23.0741 , -52.4684
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2