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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: T-Mobile USA · Clear
Snapshot 2026-03-08 Results 133 Page 4 / 4

172.56.164.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.56.164.0
Broadcast
172.56.164.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7009 , -73.9461
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · New York · Brooklyn
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.58.166.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.58.166.0
Broadcast
172.58.166.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.8835 , -87.6305
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · Illinois · Chicago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.58.164.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.58.164.0
Broadcast
172.58.164.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.8835 , -87.6305
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · Illinois · Chicago
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.58.213.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.58.213.0
Broadcast
172.58.213.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.9555 , -118.2863
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA · T-Mobile USA, Inc.
Top geo
United States · California · Los Angeles
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.59.131.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.59.131.0
Broadcast
172.59.131.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
37.7652 , -122.1579
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · California · Oakland
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.56.37.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.56.37.0
Broadcast
172.56.37.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.8892 , -76.9417
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · District of Columbia · Washington
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.58.250.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.58.250.0
Broadcast
172.58.250.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
38.9267 , -76.9758
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · District of Columbia · Washington
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.58.10.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.58.10.0
Broadcast
172.58.10.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.7153 , -84.3312
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · Georgia · Atlanta
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.56.208.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.56.208.0
Broadcast
172.56.208.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
36.122 , -115.086
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · Nevada · Las Vegas
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.58.183.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.58.183.0
Broadcast
172.58.183.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
32.8235 , -97.1706
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · Texas · Hurst
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.56.118.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.56.118.0
Broadcast
172.56.118.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.8233 , -71.441
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · Rhode Island · Providence
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.58.125.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.58.125.0
Broadcast
172.58.125.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
33.7256 , -117.9119
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · California · Santa Ana
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →

172.59.229.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
172.59.229.0
Broadcast
172.59.229.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
39.7628 , -105.0263
Hits / Errors
1 hits · 0 errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS21928 · T-Mobile USA, Inc.
Top organization / ISP
T-Mobile USA, Inc. · T-Mobile USA, Inc.
Top geo
United States · Colorado · Denver
Window / Updated
2026-02-23 → 2026-03-02 · Updated 2026-03-03 · v2
Open report →
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