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ASN REPORT — AS31420 · Terasyst Ltd

First sighted: Sept. 10, 2025, 3 a.m. · Last sighted: Feb. 28, 2026, 2 a.m.

Risk
0 (low)
Total hits
84
Total errors
17
Observed IPs
20
Top country
Bulgaria
Top city
Sopot
Top region
Plovdiv

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
No contributor breakdown available.

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
67
3xx
0
4xx
17
5xx
0
Unique URLs
0
Total hits
84
First seen
Sept. 10, 2025, 3 a.m.
Last seen
Feb. 28, 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).

No ASN annotator totals yet.

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.

193.151.80.201 low
Open report
0 /100
Last seen 2026-02-26 02:00
Hits
16
Errors
4
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
79.134.171.1 low
Open report
0 /100
Last seen 2026-02-25 02:00
Hits
9
Errors
0
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
193.151.82.61 low
Open report
0 /100
Last seen 2026-02-16 02:00
Hits
8
Errors
2
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
193.151.82.195 low
Open report
0 /100
Last seen 2026-02-09 02:00
Hits
7
Errors
1
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
5.104.186.108 low
Open report
0 /100
Last seen 2026-02-23 02:00
Hits
5
Errors
1
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
79.134.171.87 low
Open report
0 /100
Last seen 2026-01-31 02:00
Hits
5
Errors
0
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
79.134.171.65 low
Open report
0 /100
Last seen 2026-02-13 02:00
Hits
4
Errors
1
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
193.151.82.113 low
Open report
0 /100
Last seen 2026-02-21 02:00
Hits
4
Errors
2
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
5.104.184.121 low
Open report
0 /100
Last seen 2026-02-28 02:00
Hits
3
Errors
0
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
79.134.176.12 low
Open report
0 /100
Last seen 2026-02-02 02:00
Hits
3
Errors
1
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
193.151.80.5 low
Open report
0 /100
Last seen 2026-02-07 02:00
Hits
3
Errors
2
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
193.151.82.145 low
Open report
0 /100
Last seen 2026-02-10 02:00
Hits
3
Errors
1
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
79.134.171.114 low
Open report
0 /100
Last seen 2026-01-29 02:00
Hits
2
Errors
0
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
79.134.179.190 low
Open report
0 /100
Last seen 2026-02-01 02:00
Hits
2
Errors
0
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
193.151.80.20 low
Open report
0 /100
Last seen 2026-01-24 02:00
Hits
2
Errors
1
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
193.151.80.24 low
Open report
0 /100
Last seen 2026-01-24 02:00
Hits
2
Errors
1
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
193.151.81.184 low
Open report
0 /100
Last seen 2026-02-23 02:00
Hits
2
Errors
0
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
193.151.82.60 low
Open report
0 /100
Last seen 2026-01-25 02:00
Hits
2
Errors
0
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
5.104.186.229 low
Open report
0 /100
Last seen 2026-01-31 02:00
Hits
1
Errors
0
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd
79.134.179.198 low
Open report
0 /100
Last seen 2026-02-13 02:00
Hits
1
Errors
0
Country
Bulgaria
ASN
AS31420
AS Org
Terasyst Ltd