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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: Optisprint3 · Clear
Snapshot 2026-01-23 Results 7 Page 1 / 1

212.233.159.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
212.233.159.0
Broadcast
212.233.159.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.4126 , 24.6089
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-12-17 20:42 · 2025-12-17 20:42
Top ASN
AS29582 · Optisprint OOD
Top organization / ISP
Optisprint3 · Optisprint OOD
Top geo
Bulgaria · Pleven · Pleven
Window / Updated
2025-12-15 → 2025-12-22 · Updated 2026-01-14 · v2
Open report →

212.233.162.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
212.233.162.0
Broadcast
212.233.162.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.4126 , 24.6089
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-06 05:32 · 2025-11-06 05:32
Top ASN
AS29582 · Optisprint OOD
Top organization / ISP
Optisprint3 · Optisprint OOD
Top geo
Bulgaria · Pleven · Pleven
Window / Updated
2025-11-03 → 2025-11-10 · Updated 2026-01-14 · v2
Open report →

212.233.181.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
212.233.181.0
Broadcast
212.233.181.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.4539 , 24.6165
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-06 02:52 · 2025-11-06 02:52
Top ASN
AS29582 · Optisprint OOD
Top organization / ISP
Optisprint3 · Optisprint OOD
Top geo
Bulgaria · Pleven · Bukovlak
Window / Updated
2025-11-03 → 2025-11-10 · Updated 2026-01-14 · v2
Open report →

212.233.170.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
212.233.170.0
Broadcast
212.233.170.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.4126 , 24.6089
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-24 16:22 · 2025-08-24 16:22
Top ASN
AS29582 · Optisprint OOD
Top organization / ISP
Optisprint3 · Optisprint OOD
Top geo
Bulgaria · Pleven · Pleven
Window / Updated
2025-08-18 → 2025-08-25 · Updated 2026-01-14 · v2
Open report →

212.233.153.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
212.233.153.0
Broadcast
212.233.153.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.4126 , 24.6089
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-08-20 13:53 · 2025-08-20 13:53
Top ASN
AS29582 · Optisprint OOD
Top organization / ISP
Optisprint3 · Optisprint OOD
Top geo
Bulgaria · Pleven · Pleven
Window / Updated
2025-08-18 → 2025-08-25 · Updated 2026-01-14 · v2
Open report →

212.233.167.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
212.233.167.0
Broadcast
212.233.167.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.4126 , 24.6089
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-12 13:07 · 2025-08-12 13:07
Top ASN
AS29582 · Optisprint OOD
Top organization / ISP
Optisprint3 · Optisprint OOD
Top geo
Bulgaria · Pleven · Pleven
Window / Updated
2025-08-11 → 2025-08-18 · Updated 2026-01-14 · v2
Open report →

212.233.151.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
212.233.151.0
Broadcast
212.233.151.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
43.4126 , 24.6089
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-04-05 03:27 · 2025-04-05 03:27
Top ASN
AS29582 · Optisprint OOD
Top organization / ISP
Optisprint3 · Optisprint OOD
Top geo
Bulgaria · Pleven · Pleven
Window / Updated
2025-03-31 → 2025-04-07 · Updated 2026-01-14 · v2
Open report →