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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: El Escorial · Clear
Snapshot 2026-01-31 Results 2 Page 1 / 1

81.35.158.0/24

Risk Max — LOW Footprint 0.391% Hits 24
Prefix / IP version
/24 · IPv4
Network
81.35.158.0
Broadcast
81.35.158.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.5956 , -4.156
Hits / Errors
24 hits · 0 errors
First / Last seen
2025-03-22 11:03 · 2025-03-22 11:04
Top ASN
AS3352 · TELEFONICA DE ESPANA S.A.U.
Top organization / ISP
RIMA (Red IP Multi Acceso) · Telefonica de Espana SAU
Top geo
Spain · Madrid · El Escorial
Window / Updated
2025-03-17 → 2025-03-24 · Updated 2026-01-14 · v2
Open report →

81.35.148.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
81.35.148.0
Broadcast
81.35.148.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.5956 , -4.156
Hits / Errors
3 hits · 2 errors
First / Last seen
2024-11-09 19:19 · 2024-11-09 19:19
Top ASN
AS3352 · TELEFONICA DE ESPANA S.A.U.
Top organization / ISP
RIMA (Red IP Multi Acceso) · Telefonica de Espana SAU
Top geo
Spain · Madrid · El Escorial
Window / Updated
2024-11-04 → 2024-11-11 · Updated 2026-01-14 · v2
Open report →