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.

81.57.120.0/24

Risk Max LOW Footprint 1.172% Hits 7
Prefix / IP version
/24 · IPv4
Network
81.57.120.0
Broadcast
81.57.120.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
45.4642 , 9.189899999999998
Hits / Errors
7 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.36.0/24

Risk Max LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
81.56.36.0
Broadcast
81.56.36.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.31.0/24

Risk Max LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
81.56.31.0
Broadcast
81.56.31.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.38.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
81.56.38.0
Broadcast
81.56.38.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.169.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
81.56.169.0
Broadcast
81.56.169.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.56.0/24

Risk Max LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
81.56.56.0
Broadcast
81.56.56.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.129.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
81.56.129.0
Broadcast
81.56.129.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.179.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
81.56.179.0
Broadcast
81.56.179.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.34.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
81.56.34.0
Broadcast
81.56.34.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.57.83.0/24

Risk Max LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
81.57.83.0
Broadcast
81.57.83.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.126.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.126.0
Broadcast
81.56.126.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.57.84.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.57.84.0
Broadcast
81.57.84.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.234.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.234.0
Broadcast
81.56.234.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.57.126.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.57.126.0
Broadcast
81.57.126.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-27 02:00 · 2026-02-28 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.164.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.164.0
Broadcast
81.56.164.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.20.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.20.0
Broadcast
81.56.20.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.80.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.80.0
Broadcast
81.56.80.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.11.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.11.0
Broadcast
81.56.11.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.122.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.122.0
Broadcast
81.56.122.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 1 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.150.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.150.0
Broadcast
81.56.150.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.170.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.170.0
Broadcast
81.56.170.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.203.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.203.0
Broadcast
81.56.203.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.75.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.75.0
Broadcast
81.56.75.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.87.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.87.0
Broadcast
81.56.87.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.97.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.97.0
Broadcast
81.56.97.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.57.119.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.57.119.0
Broadcast
81.57.119.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.141.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.141.0
Broadcast
81.56.141.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.182.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.182.0
Broadcast
81.56.182.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.157.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.157.0
Broadcast
81.56.157.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.190.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.190.0
Broadcast
81.56.190.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.27.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.27.0
Broadcast
81.56.27.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.77.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.77.0
Broadcast
81.56.77.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.148.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.148.0
Broadcast
81.56.148.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.181.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.181.0
Broadcast
81.56.181.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.185.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.185.0
Broadcast
81.56.185.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.204.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.204.0
Broadcast
81.56.204.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.208.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.208.0
Broadcast
81.56.208.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.231.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.231.0
Broadcast
81.56.231.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.25.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.25.0
Broadcast
81.56.25.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2

81.56.29.0/24

Risk Max LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.56.29.0
Broadcast
81.56.29.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.4642 , 9.1899
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS29447 · SCALEWAY S.A.S.
Top organization / ISP
Top geo
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
« First ‹ Prev
Page 1 of 2