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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: Mobile subscribers pool · Clear
Snapshot 2026-01-20 Results 15 Page 1 / 1

213.87.137.0/24

Risk Max — LOW Footprint 0.391% Hits 21
Prefix / IP version
/24 · IPv4
Network
213.87.137.0
Broadcast
213.87.137.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
21 hits · 1 errors
First / Last seen
2025-05-20 17:26 · 2025-05-20 17:26
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2
Open report →

213.87.135.0/24

Risk Max — LOW Footprint 0.391% Hits 17
Prefix / IP version
/24 · IPv4
Network
213.87.135.0
Broadcast
213.87.135.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
17 hits · 0 errors
First / Last seen
2025-01-24 13:32 · 2025-01-24 13:32
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-01-20 → 2025-01-27 · Updated 2026-01-14 · v2
Open report →

213.87.138.0/24

Risk Max — LOW Footprint 0.391% Hits 15
Prefix / IP version
/24 · IPv4
Network
213.87.138.0
Broadcast
213.87.138.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
15 hits · 7 errors
First / Last seen
2024-10-04 21:17 · 2024-10-04 21:41
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2024-09-30 → 2024-10-07 · Updated 2026-01-14 · v2
Open report →

213.87.136.0/24

Risk Max — LOW Footprint 0.391% Hits 10
Prefix / IP version
/24 · IPv4
Network
213.87.136.0
Broadcast
213.87.136.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
10 hits · 0 errors
First / Last seen
2024-12-14 16:57 · 2024-12-14 16:58
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2024-12-09 → 2024-12-16 · Updated 2026-01-14 · v2
Open report →

213.87.134.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.134.0
Broadcast
213.87.134.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-12-01 11:30 · 2025-12-01 11:30
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-12-01 → 2025-12-08 · Updated 2026-01-14 · v2
Open report →

213.87.153.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.153.0
Broadcast
213.87.153.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-25 04:21 · 2025-11-25 04:21
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-11-24 → 2025-12-01 · Updated 2026-01-14 · v2
Open report →

213.87.149.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.149.0
Broadcast
213.87.149.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-11-06 13:55 · 2025-11-06 13:55
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-11-03 → 2025-11-10 · Updated 2026-01-14 · v2
Open report →

213.87.86.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.86.0
Broadcast
213.87.86.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-10-28 20:29 · 2025-10-28 20:29
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems OJSC
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-10-27 → 2025-11-03 · Updated 2026-01-14 · v2
Open report →

213.87.140.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.140.0
Broadcast
213.87.140.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-10-07 07:06 · 2025-10-07 07:06
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-10-06 → 2025-10-13 · Updated 2026-01-14 · v2
Open report →

213.87.161.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.161.0
Broadcast
213.87.161.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-26 13:26 · 2025-08-26 13:26
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-08-25 → 2025-09-01 · Updated 2026-01-14 · v2
Open report →

213.87.132.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.132.0
Broadcast
213.87.132.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-02 18:23 · 2025-08-02 18:23
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

213.87.133.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.133.0
Broadcast
213.87.133.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-06 07:18 · 2025-05-06 07:18
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

213.87.130.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.130.0
Broadcast
213.87.130.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-06 00:43 · 2025-05-06 00:43
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

213.87.90.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.90.0
Broadcast
213.87.90.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-05 20:27 · 2025-05-05 20:27
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems OJSC
Top geo
Russia · Moscow · Moscow
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

213.87.157.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
213.87.157.0
Broadcast
213.87.157.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
55.7487 , 37.6187
Hits / Errors
1 hits · 0 errors
First / Last seen
2024-10-13 12:59 · 2024-10-13 12:59
Top ASN
AS8359 · MTS PJSC
Top organization / ISP
Mobile subscribers pool · Mobile TeleSystems
Top geo
Russia · Moscow · Moscow
Window / Updated
2024-10-07 → 2024-10-14 · Updated 2026-01-14 · v2
Open report →