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ASN REPORT — AS31 · California Institute of Technology

First sighted: Feb. 13, 2026, 2 a.m. · Last sighted: Feb. 14, 2026, 2 a.m.

Risk
0 (Low)
Total hits
1
Total errors
0
Observed IPs
1
Top country
United States
Top city
Pasadena
Top region
California

Risk

Model: v1 Computed: Feb. 27, 2026, 5:09 p.m.
ASN risk score
0
Low
Risk gradient
Contributor codes are normalized (e.g. sqli, cmdi, trav, sfp). Totals and breakdowns are derived from ASN rollups and explainability tables only.
Annotator influence radar
Rendering annotator influence profile…
Normalized contribution (0..1) per annotator versus robust per-code envelope.
All contributing signals
No annotator totals available.
Technical summary
Computed at
Feb. 27, 2026, 5:09 p.m.
Raw total
0.00
Total hits
1
Errors
0

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
1
3xx
0
4xx
0
5xx
0
Unique URLs
0
Total hits
1
First seen
Feb. 13, 2026, 2 a.m.
Last seen
Feb. 14, 2026, 2 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).

Loading map…

SUBNETS HELD BY THIS ASN

Derived from report_ipaddress rows mapped to this ASN. 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.

131.215.220.52 low
Open report
0 /100
Last seen 2026-02-14 02:00
Hits
1
Errors
0
Country
United States
ASN
AS31
AS Org
California Institute of Technology