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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: JSC "ER-Telecom Holding" Chelyabinsk Branch · Clear
Snapshot 2026-02-01 Results 4 Page 1 / 1

37.113.180.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
37.113.180.0
Broadcast
37.113.180.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.1586 , 61.4296
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-09-16 07:58 · 2025-09-16 07:58
Top ASN
AS41661 · JSC ER-Telecom Holding
Top organization / ISP
JSC "ER-Telecom Holding" Chelyabinsk Branch · CJSC "ER-Telecom Holding" Chelyabinsk branch
Top geo
Russia · Chelyabinsk Oblast · Chelyabinsk
Window / Updated
2025-09-15 → 2025-09-22 · Updated 2026-01-14 · v2
Open report →

37.113.172.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
37.113.172.0
Broadcast
37.113.172.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.1586 , 61.4296
Hits / Errors
2 hits · 0 errors
First / Last seen
2024-02-05 03:44 · 2024-02-05 03:44
Top ASN
AS41661 · JSC ER-Telecom Holding
Top organization / ISP
JSC "ER-Telecom Holding" Chelyabinsk Branch · CJSC "ER-Telecom Holding" Chelyabinsk branch
Top geo
Russia · Chelyabinsk Oblast · Chelyabinsk
Window / Updated
2024-02-05 → 2024-02-12 · Updated 2026-01-14 · v2
Open report →

37.113.168.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
37.113.168.0
Broadcast
37.113.168.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.1586 , 61.4296
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-24 04:47 · 2025-11-24 04:47
Top ASN
AS41661 · JSC ER-Telecom Holding
Top organization / ISP
JSC "ER-Telecom Holding" Chelyabinsk Branch · CJSC "ER-Telecom Holding" Chelyabinsk branch
Top geo
Russia · Chelyabinsk Oblast · Chelyabinsk
Window / Updated
2025-11-24 → 2025-12-01 · Updated 2026-01-14 · v2
Open report →

37.113.130.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
37.113.130.0
Broadcast
37.113.130.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.1586 , 61.4296
Hits / Errors
1 hits · 0 errors
First / Last seen
2023-09-21 16:14 · 2023-09-21 16:14
Top ASN
AS41661 · JSC ER-Telecom Holding
Top organization / ISP
JSC "ER-Telecom Holding" Chelyabinsk Branch · CJSC "ER-Telecom Holding" Chelyabinsk branch
Top geo
Russia · Chelyabinsk Oblast · Chelyabinsk
Window / Updated
2023-09-18 → 2023-09-25 · Updated 2026-01-14 · v2
Open report →