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ASN REPORT — AS55387 · Japan Communication Inc.

First sighted: Feb. 4, 2026, 2 a.m. · Last sighted: Feb. 23, 2026, 2 a.m.

Risk
0 (low)
Total hits
34
Total errors
7
Observed IPs
28
Top country
Japan
Top city
Tsu
Top region
Yamanashi

Risk

Model: v1 Computed: 2026-03-03 19:54:56
Risk score
Low
Risk gradient
Key drivers are enriched against the published annotator catalog when available; otherwise sensible defaults are used.
Key drivers
Credential brute forcing
Repeated authentication attempts consistent with password guessing or credential stuffing.
cred
Hits 6
Points 19.80

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
27
3xx
0
4xx
7
5xx
0
Unique URLs
0
Total hits
34
First seen
Feb. 4, 2026, 2 a.m.
Last seen
Feb. 23, 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
Credential brute forcing cred
Repeated authentication attempts consistent with password guessing or credential stuffing.
hits 6 pts 19.80
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
10 2 2 11.00 Feb. 17, 2026, 9:10 p.m. Feb. 18, 2026, 6:33 p.m. —
8 2 2 8.80 Feb. 17, 2026, 9:10 p.m. Feb. 18, 2026, 6:33 p.m. —
0 2 2 0.00 Feb. 17, 2026, 9:10 p.m. Feb. 18, 2026, 6:33 p.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 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.

27.253.251.154 low
Open report
0 /100
Last seen 2026-02-14 02:00
Hits
3
Errors
1
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.198 low
Open report
0 /100
Last seen 2026-02-18 02:00
Hits
3
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.136 low
Open report
0 /100
Last seen 2026-02-15 02:00
Hits
2
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.243 low
Open report
0 /100
Last seen 2026-02-22 02:00
Hits
2
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.140 low
Open report
0 /100
Last seen 2026-02-14 02:00
Hits
1
Errors
1
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.141 low
Open report
0 /100
Last seen 2026-02-19 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.143 low
Open report
0 /100
Last seen 2026-02-23 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.158 low
Open report
0 /100
Last seen 2026-02-21 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.166 low
Open report
0 /100
Last seen 2026-02-19 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.167 low
Open report
0 /100
Last seen 2026-02-21 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.168 low
Open report
0 /100
Last seen 2026-02-14 02:00
Hits
1
Errors
1
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.176 low
Open report
0 /100
Last seen 2026-02-13 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.178 low
Open report
0 /100
Last seen 2026-02-21 02:00
Hits
1
Errors
1
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.179 low
Open report
0 /100
Last seen 2026-02-20 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.186 low
Open report
0 /100
Last seen 2026-02-23 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.187 low
Open report
0 /100
Last seen 2026-02-12 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.190 low
Open report
0 /100
Last seen 2026-02-07 02:00
Hits
1
Errors
1
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.195 low
Open report
0 /100
Last seen 2026-02-10 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.207 low
Open report
0 /100
Last seen 2026-02-16 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.209 low
Open report
0 /100
Last seen 2026-02-05 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.213 low
Open report
0 /100
Last seen 2026-02-14 02:00
Hits
1
Errors
1
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.214 low
Open report
0 /100
Last seen 2026-02-18 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.219 low
Open report
0 /100
Last seen 2026-02-07 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.224 low
Open report
0 /100
Last seen 2026-02-06 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.229 low
Open report
0 /100
Last seen 2026-02-07 02:00
Hits
1
Errors
1
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.244 low
Open report
0 /100
Last seen 2026-02-22 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.247 low
Open report
0 /100
Last seen 2026-02-11 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.
27.253.251.248 low
Open report
0 /100
Last seen 2026-02-10 02:00
Hits
1
Errors
0
Country
Japan
ASN
AS55387
AS Org
Japan Communication Inc.