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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: Optimum WiFi · Clear
Snapshot 2026-01-20 Results 33 Page 1 / 1

47.17.247.0/24

Risk Max — LOW Footprint 0.391% Hits 34
Prefix / IP version
/24 · IPv4
Network
47.17.247.0
Broadcast
47.17.247.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.8138 , -73.1126
Hits / Errors
34 hits · 2 errors
First / Last seen
2024-12-16 06:02 · 2024-12-21 15:46
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · Connecticut · Torrington
Window / Updated
2024-12-16 → 2024-12-23 · Updated 2026-01-14 · v2
Open report →

63.143.172.0/24

Risk Max — LOW Footprint 0.391% Hits 32
Prefix / IP version
/24 · IPv4
Network
63.143.172.0
Broadcast
63.143.172.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.3596 , -82.4266
Hits / Errors
32 hits · 1 errors
First / Last seen
2025-01-28 18:56 · 2025-01-29 03:14
Top ASN
AS53488 · Optimum Online
Top organization / ISP
Optimum WiFi · Optimum Online
Top geo
United States · North Carolina · Hendersonville
Window / Updated
2025-01-27 → 2025-02-03 · Updated 2026-01-14 · v2
Open report →

69.74.118.0/24

Risk Max — LOW Footprint 0.391% Hits 27
Prefix / IP version
/24 · IPv4
Network
69.74.118.0
Broadcast
69.74.118.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7924 , -74.0096
Hits / Errors
27 hits · 0 errors
First / Last seen
2025-05-20 20:22 · 2025-05-20 20:22
Top ASN
AS54004 · Optimum WiFi
Top organization / ISP
St. Joseph High School - MRESC · Cablevision Systems Corp.
Top geo
United States · New Jersey · West New York
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2
Open report →

69.74.227.0/24

Risk Max — LOW Footprint 0.391% Hits 15
Prefix / IP version
/24 · IPv4
Network
69.74.227.0
Broadcast
69.74.227.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7908 , -74.056
Hits / Errors
15 hits · 0 errors
First / Last seen
2025-03-14 15:07 · 2025-03-14 15:08
Top ASN
AS54004 · Optimum WiFi
Top organization / ISP
Charter Technology Solutions · Cablevision Systems Corp
Top geo
United States · New Jersey · Secaucus
Window / Updated
2025-03-10 → 2025-03-17 · Updated 2026-01-14 · v2
Open report →

69.74.18.0/24

Risk Max — LOW Footprint 0.391% Hits 11
Prefix / IP version
/24 · IPv4
Network
69.74.18.0
Broadcast
69.74.18.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7503 , -74.0014
Hits / Errors
11 hits · 0 errors
First / Last seen
2024-11-04 14:27 · 2024-11-04 14:28
Top ASN
AS54004 · Optimum WiFi
Top organization / ISP
Cablevision Systems Corp · Optimum WiFi
Top geo
United States · New York · New York
Window / Updated
2024-11-04 → 2024-11-11 · Updated 2026-01-14 · v2
Open report →

47.18.157.0/24

Risk Max — LOW Footprint 0.391% Hits 4
Prefix / IP version
/24 · IPv4
Network
47.18.157.0
Broadcast
47.18.157.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7058 , -73.3155
Hits / Errors
4 hits · 2 errors
First / Last seen
2024-04-25 01:27 · 2024-04-25 01:27
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · West Islip
Window / Updated
2024-04-22 → 2024-04-29 · Updated 2026-01-14 · v2
Open report →

47.17.3.0/24

Risk Max — LOW Footprint 0.391% Hits 3
Prefix / IP version
/24 · IPv4
Network
47.17.3.0
Broadcast
47.17.3.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.9451 , -74.2531
Hits / Errors
3 hits · 2 errors
First / Last seen
2025-07-25 23:08 · 2025-07-25 23:09
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New Jersey · Wayne
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2
Open report →

47.17.43.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
47.17.43.0
Broadcast
47.17.43.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7588 , -73.5661
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-08-21 14:57 · 2025-08-21 14:57
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Westbury
Window / Updated
2025-08-18 → 2025-08-25 · Updated 2026-01-14 · v2
Open report →

47.17.186.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
47.17.186.0
Broadcast
47.17.186.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.6462 , -73.9559
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-08-03 18:51 · 2025-08-03 18:51
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Brooklyn
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.17.255.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
47.17.255.0
Broadcast
47.17.255.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.8534 , -73.4115
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-08-02 22:37 · 2025-08-02 22:37
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Huntington Station
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.18.170.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
47.18.170.0
Broadcast
47.18.170.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.1682 , -73.2689
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-08-01 11:13 · 2025-08-01 11:13
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · Connecticut · Fairfield
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.16.45.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
47.16.45.0
Broadcast
47.16.45.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.8286 , -72.9978
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-07-31 15:57 · 2025-07-31 15:57
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Medford
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.17.73.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
47.17.73.0
Broadcast
47.17.73.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.9451 , -74.2531
Hits / Errors
2 hits · 1 errors
First / Last seen
2025-07-31 10:20 · 2025-07-31 10:20
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New Jersey · Wayne
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.17.30.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
47.17.30.0
Broadcast
47.17.30.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7597 , -74.1836
Hits / Errors
2 hits · 0 errors
First / Last seen
2025-05-29 18:32 · 2025-05-29 18:32
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New Jersey · Newark
Window / Updated
2025-05-26 → 2025-06-02 · Updated 2026-01-14 · v2
Open report →

47.16.240.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
47.16.240.0
Broadcast
47.16.240.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.0923 , -74.2252
Hits / Errors
2 hits · 2 errors
First / Last seen
2025-05-23 18:44 · 2025-05-23 18:44
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New Jersey · Lakewood
Window / Updated
2025-05-19 → 2025-05-26 · Updated 2026-01-14 · v2
Open report →

47.17.4.0/24

Risk Max — LOW Footprint 0.391% Hits 2
Prefix / IP version
/24 · IPv4
Network
47.17.4.0
Broadcast
47.17.4.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.665 , -73.9523
Hits / Errors
2 hits · 0 errors
First / Last seen
2023-12-12 10:10 · 2023-12-12 10:10
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Brooklyn
Window / Updated
2023-12-11 → 2023-12-18 · Updated 2026-01-14 · v2
Open report →

47.17.79.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.17.79.0
Broadcast
47.17.79.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.5647 , -74.6362
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-07 13:42 · 2025-08-07 13:42
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New Jersey · Raritan
Window / Updated
2025-08-04 → 2025-08-11 · Updated 2026-01-14 · v2
Open report →

47.18.47.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.18.47.0
Broadcast
47.18.47.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.5921 , -74.6238
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-08-04 21:41 · 2025-08-04 21:41
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New Jersey · Bridgewater
Window / Updated
2025-08-04 → 2025-08-11 · Updated 2026-01-14 · v2
Open report →

47.16.187.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.16.187.0
Broadcast
47.16.187.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.6914 , -73.3731
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-04 07:29 · 2025-08-04 07:29
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Lindenhurst
Window / Updated
2025-08-04 → 2025-08-11 · Updated 2026-01-14 · v2
Open report →

47.18.50.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.18.50.0
Broadcast
47.18.50.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.8518 , -73.8705
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-08-03 04:04 · 2025-08-03 04:04
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · The Bronx
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.17.207.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.17.207.0
Broadcast
47.17.207.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.6469 , -73.9344
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-02 20:00 · 2025-08-02 20:00
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Brooklyn
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.18.221.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.18.221.0
Broadcast
47.18.221.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7047 , -73.5933
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-02 19:46 · 2025-08-02 19:46
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Uniondale
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.18.99.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.18.99.0
Broadcast
47.18.99.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.5802 , -74.3594
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-08-02 18:35 · 2025-08-02 18:35
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New Jersey · Edison
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.18.83.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.18.83.0
Broadcast
47.18.83.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.8477 , -73.8418
Hits / Errors
1 hits · 1 errors
First / Last seen
2025-08-01 13:36 · 2025-08-01 13:36
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · The Bronx
Window / Updated
2025-07-28 → 2025-08-04 · Updated 2026-01-14 · v2
Open report →

47.18.213.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.18.213.0
Broadcast
47.18.213.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7047 , -73.5933
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-24 03:33 · 2025-07-24 03:33
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Uniondale
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2
Open report →

47.18.212.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.18.212.0
Broadcast
47.18.212.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.7047 , -73.5933
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-23 17:54 · 2025-07-23 17:54
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Uniondale
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2
Open report →

47.16.191.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.16.191.0
Broadcast
47.16.191.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.6914 , -73.3731
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-22 05:26 · 2025-07-22 05:26
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Lindenhurst
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2
Open report →

47.16.18.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.16.18.0
Broadcast
47.16.18.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.8453 , -73.2916
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-22 03:55 · 2025-07-22 03:55
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Commack
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2
Open report →

47.18.123.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.18.123.0
Broadcast
47.18.123.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.6715 , -74.2081
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-21 23:02 · 2025-07-21 23:02
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New Jersey · Elizabeth
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2
Open report →

47.16.90.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.16.90.0
Broadcast
47.16.90.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
41.217 , -73.0552
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-07-21 15:54 · 2025-07-21 15:54
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · Connecticut · Milford
Window / Updated
2025-07-21 → 2025-07-28 · Updated 2026-01-14 · v2
Open report →

63.143.193.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
63.143.193.0
Broadcast
63.143.193.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
35.3596 , -82.4266
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-06 18:27 · 2025-05-06 18:27
Top ASN
AS53488 · Optimum Online
Top organization / ISP
Optimum WiFi · Optimum Online
Top geo
United States · North Carolina · Hendersonville
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

47.17.201.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.17.201.0
Broadcast
47.17.201.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.6221 , -73.981
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-05-05 13:45 · 2025-05-05 13:45
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Optimum WiFi · Optimum Online (Cablevision Systems)
Top geo
United States · New York · Brooklyn
Window / Updated
2025-05-05 → 2025-05-12 · Updated 2026-01-14 · v2
Open report →

47.19.121.0/24

Risk Max — LOW Footprint 0.391% Hits 1
Prefix / IP version
/24 · IPv4
Network
47.19.121.0
Broadcast
47.19.121.255
Observed IPs / Subnet size
1 observed · 256 total
Centroid
40.8469 , -74.1605
Hits / Errors
1 hits · 0 errors
First / Last seen
2025-02-18 11:02 · 2025-02-18 11:02
Top ASN
AS6128 · Cablevision Systems Corp.
Top organization / ISP
Englewood Lab LLC · Optimum WiFi
Top geo
United States · New Jersey · Clifton
Window / Updated
2025-02-17 → 2025-02-24 · Updated 2026-01-14 · v2
Open report →