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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.

191.37.78.0/24

Risk Max LOW Footprint 2.344% Hits 9
Prefix / IP version
/24 · IPv4
Network
191.37.78.0
Broadcast
191.37.78.255
Observed IPs / Subnet size
6 observed · 256 total
Centroid
-20.0449 , -43.8787
Hits / Errors
9 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 02:00
Top ASN
AS263356 · CNT Fiber
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

191.37.77.0/24

Risk Max LOW Footprint 1.953% Hits 5
Prefix / IP version
/24 · IPv4
Network
191.37.77.0
Broadcast
191.37.77.255
Observed IPs / Subnet size
5 observed · 256 total
Centroid
-20.05634 , -43.8855
Hits / Errors
5 hits · 1 errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 02:00
Top ASN
AS263356 · CNT Fiber
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

191.37.76.0/24

Risk Max LOW Footprint 1.562% Hits 4
Prefix / IP version
/24 · IPv4
Network
191.37.76.0
Broadcast
191.37.76.255
Observed IPs / Subnet size
4 observed · 256 total
Centroid
-20.05205 , -43.882949999999994
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 02:00
Top ASN
AS263356 · CNT Fiber
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.241.0/24

Risk Max LOW Footprint 1.172% Hits 4
Prefix / IP version
/24 · IPv4
Network
187.17.241.0
Broadcast
187.17.241.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.245.0/24

Risk Max LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
187.17.245.0
Broadcast
187.17.245.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-26 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.250.0/24

Risk Max LOW Footprint 0.781% Hits 3
Prefix / IP version
/24 · IPv4
Network
187.17.250.0
Broadcast
187.17.250.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-19.9877 , -43.84470000000001
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-03-02 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.252.0/24

Risk Max LOW Footprint 0.781% Hits 3
Prefix / IP version
/24 · IPv4
Network
187.17.252.0
Broadcast
187.17.252.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-19.9877 , -43.84470000000001
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-27 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.248.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
187.17.248.0
Broadcast
187.17.248.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-03-02 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

201.80.135.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
201.80.135.0
Broadcast
201.80.135.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
2 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

201.80.42.0/24

Risk Max LOW Footprint 0.391% Hits 5
Prefix / IP version
/24 · IPv4
Network
201.80.42.0
Broadcast
201.80.42.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-26 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.254.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
187.17.254.0
Broadcast
187.17.254.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.182.74.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
177.182.74.0
Broadcast
177.182.74.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
2 hits · 1 errors
First / Last seen
2026-02-27 02:00 · 2026-03-01 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.116.122.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
177.116.122.0
Broadcast
177.116.122.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-20.0735 , -43.8957
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.240.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
187.17.240.0
Broadcast
187.17.240.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

201.80.43.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
201.80.43.0
Broadcast
201.80.43.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.244.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
187.17.244.0
Broadcast
187.17.244.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.116.196.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.116.196.0
Broadcast
177.116.196.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-20.0735 , -43.8957
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-03-01 02:00 · 2026-03-02 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

201.80.132.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
201.80.132.0
Broadcast
201.80.132.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
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

187.20.23.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
187.20.23.0
Broadcast
187.20.23.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.116.197.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.116.197.0
Broadcast
177.116.197.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-20.0735 , -43.8957
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.116.117.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.116.117.0
Broadcast
177.116.117.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-20.0735 , -43.8957
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.253.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
187.17.253.0
Broadcast
187.17.253.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.182.77.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.182.77.0
Broadcast
177.182.77.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

177.116.193.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
177.116.193.0
Broadcast
177.116.193.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-20.0735 , -43.8957
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

187.17.243.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
187.17.243.0
Broadcast
187.17.243.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

189.112.94.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
189.112.94.0
Broadcast
189.112.94.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-20.0735 , -43.8957
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS16735 · ALGAR TELECOM S/A
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

201.23.48.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
201.23.48.0
Broadcast
201.23.48.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
-19.9877 , -43.8447
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2