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Subnet Overview

Model: v1 Updated: Jan. 14, 2026, 11:04 a.m.
Report for 40.77.23.0/24 • United States • Microsoft Corporation City report ASN report

High-level context about this subnet: size, density, traffic, risk, and geographic footprint.

Traffic ready Risk ready Snapshot ready Window Sept. 4, 2023, 1 a.m. → Sept. 11, 2023, 1 a.m. Model v1
CIDR
40.77.23.0/24
Prefix
/24
IP Version
IPv4
Subnet Size
256
Network Address
40.77.23.0
Broadcast / Last
40.77.23.255
Observed IPs
1
Footprint
0.391%
Total Hits
6
Total Errors
4
Risk Score
0
Risk Level
low
First Seen
Sept. 6, 2023, 9:31 p.m.
Last Seen
Sept. 6, 2023, 9:31 p.m.
Top Location
Des Moines , Iowa • United States
Top ASN
AS8075 • Microsoft Corporation

Risk

Model: v1
Subnet risk score
0
Low
Risk gradient
Contributors are derived from subnet annotator rollups and normalized to your short codes (e.g. sqli, cmdi, trav, sfp, bot).
Contributing annotators
No contributor breakdown available.
Technical summary
Computed at
Jan. 14, 2026, 10:34 a.m.
Raw total
0.00
Total hits
6
Errors
4

Traffic

Rollup

Daily activity (hits per day) plus HTTP response mix and basic counters from the subnet traffic rollup.

Loading activity…
Rendering hits per day for this subnet.
Daily activity (hits per day).

Annotators (All-time)

Heatmap of annotator × severity for this subnet. Darker cells mean more volume in that band. Tip: switch to Weighted points to see what drives impact (not just noise).

No subnet annotator totals yet.

HTTP Status Breakdown

Response mix grouped by status class (2xx/3xx/4xx/5xx). Auto-loads one aggregation and renders a donut.

Loading status mix…
Fetching one histogram and rendering the chart.

Geolocation

Live geolocation and map tiles auto-load for this subnet (all IPs with coordinates).

Loading map…

Interesting IPs

Top risky peers inside this subnet (latest snapshot). Sorted by risk score, then hits.

40.77.23.1 low
Open report
0 /100
Last seen 2023-09-06 21:31
Hits
6
Errors
4
Country
United States
ASN
AS8075
AS Org
Microsoft Corporation

Other subnets in this ASN / org

Compares other subnet snapshots matching this report’s ASN/org identity. “Same window” keeps the comparison within the latest snapshot window.

52.167.144.0/24 /24 Risk 2
Open report
2 max · 1.373 avg
Last seen 2023-09-08 22:56
Hits
241
IPs
51
Footprint
19.922%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Boydton, Virginia, United States
172.176.75.0/24 /24 Risk 1
Open report
1 max · 0.819 avg
Last seen 2023-09-08 21:15
Hits
210
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Boydton, Virginia, United States
52.165.149.0/24 /24 Risk 1
Open report
1 max · 0.479 avg
Last seen 2023-09-08 20:03
Hits
167
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Des Moines, Iowa, United States
40.77.167.0/24 /24 Risk 1
Open report
1 max · 0.721 avg
Last seen 2023-09-08 23:26
Hits
147
IPs
39
Footprint
15.234%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Boydton, Virginia, United States
157.55.39.0/24 /24 Risk 1
Open report
1 max · 0.238 avg
Last seen 2023-09-08 22:49
Hits
63
IPs
5
Footprint
1.953%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Quincy, Washington, United States
20.169.168.0/24 /24 Risk 1
Open report
1 max · 1.000 avg
Last seen 2023-09-07 23:00
Hits
57
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Boydton, Virginia, United States
74.249.231.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-05 18:00
Hits
32
IPs
2
Footprint
0.781%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Des Moines, Iowa, United States
40.86.4.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-06 23:19
Hits
32
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Des Moines, Iowa, United States
20.55.53.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-07 05:05
Hits
31
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Boydton, Virginia, United States
4.157.252.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-04 16:24
Hits
11
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Boydton, Virginia, United States
40.88.21.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-08 05:29
Hits
9
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Boydton, Virginia, United States
20.231.17.0/24 /24 Risk 1
Open report
1 max · 1.000 avg
Last seen 2023-09-05 03:19
Hits
8
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Boydton, Virginia, United States
74.249.224.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-06 03:33
Hits
6
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Des Moines, Iowa, United States
172.176.206.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-06 17:55
Hits
4
IPs
2
Footprint
0.781%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Boydton, Virginia, United States
40.77.189.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-08 16:32
Hits
4
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Quincy, Washington, United States
40.77.188.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-07 03:06
Hits
3
IPs
3
Footprint
1.172%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Quincy, Washington, United States
20.191.45.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-05 17:01
Hits
3
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Dublin, Leinster, Ireland
20.15.133.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-08 16:47
Hits
2
IPs
2
Footprint
0.781%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Des Moines, Iowa, United States
51.132.139.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-06 14:40
Hits
2
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
City of London, England, United Kingdom
20.106.94.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2023-09-05 23:44
Hits
2
IPs
1
Footprint
0.391%
ASN
AS8075
AS Org
Microsoft Corporation
Geo
Phoenix, Arizona, United States