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ASN REPORT — AS2907 · Research Organization of Information and Systems, National Institute of Informatics

First sighted: Nov. 5, 2024, 2 a.m. · Last sighted: Feb. 16, 2026, 2 a.m.

Risk
0 (low)
Total hits
70
Total errors
5
Observed IPs
9
Top country
Japan
Top city
Tsurumaki
Top region
Yamaguchi

Risk

Model: v1 Computed: 2026-02-27 17:09:49
Risk score
Low
Risk gradient
Key drivers are enriched against the published annotator catalog when available; otherwise sensible defaults are used.
Key drivers
Request size anomaly
Requests are unusually large or shaped in a way that suggests abuse or automation.
request_size
Hits 9
Points 5.04
User-Agent anomaly
User-Agent signals look missing, inconsistent, or indicative of non-browser tooling.
ua
Hits 5
Points 0.60

Traffic

Rollup

Daily activity (hits per day) and basic HTTP rollup counters for this ASN.

Loading activity…
Daily activity (hits per day). Total in window: —.
Traffic rollup
HTTP status classes, URL diversity, and totals.
2xx
65
3xx
0
4xx
5
5xx
0
Unique URLs
0
Total hits
70
First seen
Nov. 5, 2024, 2 a.m.
Last seen
Feb. 16, 2026, 2 a.m.

Annotators (All-time)

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

Severity →
Low High
Request size anomaly request_size
Requests are unusually large or shaped in a way that suggests abuse or automation.
hits 9 pts 5.04
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
12 7 1 5.04 Jan. 14, 2025, 7:22 a.m. Jan. 14, 2025, 7:28 a.m. —
0 2 1 0.00 Jan. 14, 2025, 7:22 a.m. Jan. 14, 2025, 7:27 a.m. —
User-Agent anomaly ua
User-Agent signals look missing, inconsistent, or indicative of non-browser tooling.
hits 5 pts 0.60
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
6 5 3 0.60 Nov. 5, 2024, 6:28 a.m. Jan. 14, 2025, 7:24 a.m. —

HTTP Status Breakdown

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

Loading status mix…
Running one aggregation and rendering the chart.

Geolocation

Live geolocation and map tiles auto-load for this ASN snapshot (peer IPs with coordinates).

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SUBNETS HELD BY THIS ISP

Derived from ISP snapshot peers (Option A). Grouped into IPv4 /24 and IPv6 /48 by default.
IPv4
IPv6
Limit
Loading subnets…

Interesting IPs

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

210.137.140.177 low
Open report
0 /100
Last seen 2025-01-15 02:00
Hits
49
Errors
0
Country
Japan
ASN
AS2907
AS Org
Research Organization of Information and Systems, National Institute of Informatics
202.223.160.109 low
Open report
0 /100
Last seen 2024-12-10 02:00
Hits
11
Errors
0
Country
Japan
ASN
AS2907
AS Org
Research Organization of Information and Systems, National Institute of Informatics
202.244.91.5 low
Open report
0 /100
Last seen 2026-02-09 02:00
Hits
2
Errors
0
Country
Japan
ASN
AS2907
AS Org
Research Organization of Information and Systems, National Institute of Informatics
202.254.91.2 low
Open report
0 /100
Last seen 2024-11-13 02:00
Hits
2
Errors
1
Country
Japan
ASN
AS2907
AS Org
Research Organization of Information and Systems, National Institute of Informatics
210.137.33.126 low
Open report
0 /100
Last seen 2024-11-06 02:00
Hits
2
Errors
1
Country
Japan
ASN
AS2907
AS Org
Research Organization of Information and Systems, National Institute of Informatics
150.99.191.250 low
Open report
0 /100
Last seen 2026-02-05 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS2907
AS Org
Research Organization of Information and Systems, National Institute of Informatics
160.15.13.173 low
Open report
0 /100
Last seen 2026-02-05 02:00
Hits
1
Errors
1
Country
Japan
ASN
AS2907
AS Org
Research Organization of Information and Systems, National Institute of Informatics
163.220.152.29 low
Open report
0 /100
Last seen 2026-02-16 02:00
Hits
1
Errors
1
Country
Japan
ASN
AS2907
AS Org
Research Organization of Information and Systems, National Institute of Informatics
202.15.17.89 low
Open report
0 /100
Last seen 2026-02-15 02:00
Hits
1
Errors
1
Country
Japan
ASN
AS2907
AS Org
Research Organization of Information and Systems, National Institute of Informatics