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.
Search
Active filter:
NEC BIGLOBE Ltd.
·
Clear
Snapshot
2026-03-07
Results
15
Page
1
/
1
133.206.97.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
4
Prefix / IP version
/24 · IPv4
Network
133.206.97.0
Broadcast
133.206.97.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
34.8185 , 135.5693
Hits / Errors
4
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-25 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Osaka
·
Ibaraki
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
122.134.177.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
3
Prefix / IP version
/24 · IPv4
Network
122.134.177.0
Broadcast
122.134.177.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.704 , 139.6713
Hits / Errors
3
hits ·
0
errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
BIGLOBE
·
NEC BIGLOBE Ltd.
Top geo
Japan
·
Tokyo
·
Nakano City
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.201.73.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
3
Prefix / IP version
/24 · IPv4
Network
133.201.73.0
Broadcast
133.201.73.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.4195 , 139.2949
Hits / Errors
3
hits ·
0
errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Kanagawa
·
Itado
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.201.146.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
3
Prefix / IP version
/24 · IPv4
Network
133.201.146.0
Broadcast
133.201.146.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.7059 , 140.0004
Hits / Errors
3
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Chiba
·
Honchō
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.207.202.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
2
Prefix / IP version
/24 · IPv4
Network
133.207.202.0
Broadcast
133.207.202.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.4256 , 136.7614
Hits / Errors
2
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Gifu
·
Gifu
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.206.48.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
133.206.48.0
Broadcast
133.206.48.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
34.7115 , 135.5544
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-26 02:00 · 2026-02-27 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Osaka
·
Noe
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.201.159.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
133.201.159.0
Broadcast
133.201.159.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.7834 , 139.8958
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Chiba
·
Matsudo
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.206.122.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
133.206.122.0
Broadcast
133.206.122.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
34.7225 , 135.4264
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-25 02:00 · 2026-02-26 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Hyōgo
·
Amagasaki
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.200.183.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
133.200.183.0
Broadcast
133.200.183.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.703 , 139.8308
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-24 02:00 · 2026-02-25 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Tokyo
·
Kameido
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.207.4.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
133.207.4.0
Broadcast
133.207.4.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.1926 , 136.906
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Aichi
·
Nagoya
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.201.64.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
133.201.64.0
Broadcast
133.201.64.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.2786 , 139.6477
Hits / Errors
1
hits ·
1
errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Kanagawa
·
Yokosuka
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.207.132.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
133.207.132.0
Broadcast
133.207.132.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
34.9804 , 138.3854
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-23 02:00 · 2026-02-24 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Shizuoka
·
Shizuoka
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
125.199.61.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
125.199.61.0
Broadcast
125.199.61.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.6129 , 139.6417
Hits / Errors
1
hits ·
1
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
BIGLOBE
·
NEC BIGLOBE Ltd.
Top geo
Japan
·
Tokyo
·
Nakamachi
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.200.174.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
133.200.174.0
Broadcast
133.200.174.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
35.7402 , 139.7854
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Tokyo
·
Arakawa City
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
133.206.160.0/24
Risk Max
—
LOW
Footprint
0.391
%
Hits
1
Prefix / IP version
/24 · IPv4
Network
133.206.160.0
Broadcast
133.206.160.255
Observed IPs / Subnet size
1
observed ·
256
total
Centroid
34.6892 , 135.4899
Hits / Errors
1
hits ·
0
errors
First / Last seen
2026-02-22 02:00 · 2026-02-23 02:00
Top ASN
AS2518 ·
BIGLOBE Inc.
Top organization / ISP
NEC BIGLOBE Ltd.
·
BIGLOBE Inc.
Top geo
Japan
·
Osaka
·
Osaka
Window / Updated
2026-02-23 → 2026-03-02 · Updated
2026-03-03
· v2
Open report →
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