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.
Search
Active filter:
SFR SA
·
Clear
Snapshot
2026-03-10
Results
536
Page
14
/
14
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 →
81.220.137.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
81.220.137.0
Broadcast
81.220.137.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
48.9528 , 1.9282
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
— ·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Île-de-France
·
Ecquevilly
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
37.65.5.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
37.65.5.0
Broadcast
37.65.5.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
44.8412 , -0.5806
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 ·
Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
SFR Infra
·
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 →
37.65.42.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
37.65.42.0
Broadcast
37.65.42.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
45.748 , 4.85
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
— ·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Rhône-Alpes
·
Lyon
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
37.65.41.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
37.65.41.0
Broadcast
37.65.41.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
45.748 , 4.85
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
— ·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Rhône-Alpes
·
Lyon
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
77.147.83.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
77.147.83.0
Broadcast
77.147.83.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
43.4614 , 3.6853
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
— ·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Occitanie
·
Balaruc-le-Vieux
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
37.69.28.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
37.69.28.0
Broadcast
37.69.28.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
48.8051 , 2.4197
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
SFR Infra
·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Île-de-France
·
Alfortville
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
37.65.113.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
37.65.113.0
Broadcast
37.65.113.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
46.1075 , 0.91074
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
SFR Infra
·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Nouvelle-Aquitaine
·
Mézières-sur-Issoire
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
37.65.31.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
37.65.31.0
Broadcast
37.65.31.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.7043 , 2.83506
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
SFR Infra
·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Hauts-de-France
·
Nieppe
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
81.220.138.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
81.220.138.0
Broadcast
81.220.138.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
48.9528 , 1.9282
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
— ·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Île-de-France
·
Ecquevilly
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
81.65.172.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
81.65.172.0
Broadcast
81.65.172.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
43.7045 , 7.2597
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
— ·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Provence-Alpes-Côte d'Azur
·
Nice
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
37.66.187.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
37.66.187.0
Broadcast
37.66.187.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
48.8051 , 2.4197
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
SFR Infra
·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Île-de-France
·
Alfortville
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
81.65.178.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
81.65.178.0
Broadcast
81.65.178.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
43.6046 , 1.4451
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
— ·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Occitanie
·
Toulouse
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
37.66.148.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
37.66.148.0
Broadcast
37.66.148.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
50.6977 , 3.1786
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
SFR Infra
·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Hauts-de-France
·
Roubaix
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
77.141.56.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
77.141.56.0
Broadcast
77.141.56.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
44.8412 , -0.5806
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS15557 ·
Societe Francaise Du Radiotelephone - SFR SA
Top organization / ISP
Societe Francaise du Radiotelephone S.A
·
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 →
37.66.2.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
37.66.2.0
Broadcast
37.66.2.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
48.7416 , 2.747
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
SFR Infra
·
Societe Francaise Du Radiotelephone - SFR SA
Top geo
France
·
Île-de-France
·
Gretz-Armainvilliers
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
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