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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: Ncnumericable · Clear
Snapshot 2026-03-07 Results 31 Page 1 / 1

81.220.55.0/24

Risk Max — LOW Footprint 1.953% Hits 8
Prefix / IP version
/24 · IPv4
Network
81.220.55.0
Broadcast
81.220.55.255
Observed IPs / Subnet size
5 observed · 256 total
Centroid
48.9043 , 2.4877
Hits / Errors
8 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Île-de-France · Bondy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.201.32.0/24

Risk Max — LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
77.201.32.0
Broadcast
77.201.32.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
50.4478 , 2.7281
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-28 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Hauts-de-France · Bully-les-Mines
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.201.35.0/24

Risk Max — LOW Footprint 1.172% Hits 3
Prefix / IP version
/24 · IPv4
Network
77.201.35.0
Broadcast
77.201.35.255
Observed IPs / Subnet size
3 observed · 256 total
Centroid
50.4372 , 2.7458666666666667
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-27 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Hauts-de-France · Bully-les-Mines
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

81.220.53.0/24

Risk Max — LOW Footprint 0.781% Hits 5
Prefix / IP version
/24 · IPv4
Network
81.220.53.0
Broadcast
81.220.53.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
48.9043 , 2.4877
Hits / Errors
5 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Île-de-France · Bondy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.201.34.0/24

Risk Max — LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
77.201.34.0
Broadcast
77.201.34.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
50.4478 , 2.7281
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Hauts-de-France · Bully-les-Mines
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

81.220.177.0/24

Risk Max — LOW Footprint 0.781% Hits 4
Prefix / IP version
/24 · IPv4
Network
81.220.177.0
Broadcast
81.220.177.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
45.1466 , 0.5311
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Nouvelle-Aquitaine · Saint-Astier
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.198.13.0/24

Risk Max — LOW Footprint 0.781% Hits 3
Prefix / IP version
/24 · IPv4
Network
77.198.13.0
Broadcast
77.198.13.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
47.3983 , 0.7037
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Centre-Val de Loire · Tours
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.202.177.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
77.202.177.0
Broadcast
77.202.177.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
48.7344 , 2.4449
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-27 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Île-de-France · Villeneuve-Saint-Georges
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.201.220.0/24

Risk Max — LOW Footprint 0.781% Hits 2
Prefix / IP version
/24 · IPv4
Network
77.201.220.0
Broadcast
77.201.220.255
Observed IPs / Subnet size
2 observed · 256 total
Centroid
49.4199 , 2.823
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Hauts-de-France · Compiègne
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.204.127.0/24

Risk Max — LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
77.204.127.0
Broadcast
77.204.127.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.7463 , 7.3276
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-26 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
FR Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Grand Est · Mulhouse
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.129.230.0/24

Risk Max — LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
77.129.230.0
Broadcast
77.129.230.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.7083 , 2.391
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Île-de-France · Athis-Mons
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

81.220.116.0/24

Risk Max — LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
81.220.116.0
Broadcast
81.220.116.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.8305 , 7.32877
Hits / Errors
4 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Provence-Alpes-Côte d'Azur · Berre-les-Alpes
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

92.92.123.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
92.92.123.0
Broadcast
92.92.123.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.857499999999995 , 2.35138
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-24 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Île-de-France · Paris
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

81.220.61.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
81.220.61.0
Broadcast
81.220.61.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.9043 , 2.4877
Hits / Errors
3 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Île-de-France · Bondy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

81.220.127.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
81.220.127.0
Broadcast
81.220.127.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.3278 , 7.27109
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Grand Est · Fouchy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

81.220.54.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
81.220.54.0
Broadcast
81.220.54.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.9043 , 2.4877
Hits / Errors
2 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-26 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Île-de-France · Bondy
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

92.94.247.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
92.94.247.0
Broadcast
92.94.247.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
44.8412 , -0.5806
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-28 02:00 · 2026-03-01 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Nouvelle-Aquitaine · Bordeaux
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.199.72.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
77.199.72.0
Broadcast
77.199.72.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.3983 , 0.7037
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Centre-Val de Loire · Tours
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

78.113.69.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
78.113.69.0
Broadcast
78.113.69.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.4951 , 2.322
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Occitanie · Aiguefonde
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

79.90.222.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
79.90.222.0
Broadcast
79.90.222.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
44.8412 , -0.5806
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
FR Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Nouvelle-Aquitaine · Bordeaux
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.8.196.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.8.196.0
Broadcast
109.8.196.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.8558 , 2.3494
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
FR Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Île-de-France · Paris
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.201.211.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
77.201.211.0
Broadcast
77.201.211.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
49.4199 , 2.823
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
FR Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Hauts-de-France · Compiègne
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

88.141.245.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
88.141.245.0
Broadcast
88.141.245.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
50.3986 , 2.8631
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Hauts-de-France · Méricourt
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.12.207.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.12.207.0
Broadcast
109.12.207.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.7962 , 2.3057
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
FR Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Île-de-France · Bagneux
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

81.220.118.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.220.118.0
Broadcast
81.220.118.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.6398 , 6.84625
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Provence-Alpes-Côte d'Azur · Le Tignet
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

109.10.37.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
109.10.37.0
Broadcast
109.10.37.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
48.11 , -1.6744
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Brittany · Rennes
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

77.197.70.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
77.197.70.0
Broadcast
77.197.70.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
47.7463 , 7.3276
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
FR Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Grand Est · Mulhouse
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

79.80.67.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
79.80.67.0
Broadcast
79.80.67.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
44.8667 , -0.5948
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Nouvelle-Aquitaine · Le Bouscat
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

81.220.115.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.220.115.0
Broadcast
81.220.115.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
45.9354 , 6.19207
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Rhône-Alpes · Nâves-Parmelan
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

81.220.170.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
81.220.170.0
Broadcast
81.220.170.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
44.775 , 4.8423
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Rhône-Alpes · Livron-sur-Drôme
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

93.27.187.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
93.27.187.0
Broadcast
93.27.187.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.5504 , 7.0131
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 · Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Ncnumericable · Societe Francaise Du Radiotelephone - SFR SA
Top geo
France · Provence-Alpes-Côte d'Azur · Cannes
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →