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ASN REPORT — AS2852 · CESNET z.s.p.o.

First sighted: Dec. 11, 2024, 2 a.m. · Last sighted: Feb. 26, 2026, 2 a.m.

Risk
0 (low)
Total hits
273
Total errors
50
Observed IPs
13
Top country
Czechia
Top city
Zlín
Top region
Zlín

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
Request size anomaly
Requests are unusually large or shaped in a way that suggests abuse or automation.
request_size
Hits 3
Points

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
223
3xx
0
4xx
50
5xx
0
Unique URLs
0
Total hits
273
First seen
Dec. 11, 2024, 2 a.m.
Last seen
Feb. 26, 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 3 pts 0.00
Breakdown by severity band (all-time). “Weighted” reflects your weight configuration.
Severity Total Labels Weighted First seen Last seen Top labels
0 3 1 0.00 March 10, 2025, 11:04 a.m. March 10, 2025, 11:04 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.

195.113.175.167 low
Open report
0 /100
Last seen 2025-05-24 03:00
Hits
217
Errors
43
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
147.228.128.13 low
Open report
0 /100
Last seen 2024-12-12 02:00
Hits
24
Errors
2
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
78.128.203.245 low
Open report
0 /100
Last seen 2025-03-11 02:00
Hits
15
Errors
0
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
195.113.172.13 low
Open report
0 /100
Last seen 2026-01-22 02:00
Hits
5
Errors
1
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
147.32.87.114 low
Open report
0 /100
Last seen 2025-04-03 03:00
Hits
2
Errors
0
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
147.251.58.86 low
Open report
0 /100
Last seen 2024-12-28 02:00
Hits
2
Errors
0
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
195.113.226.194 low
Open report
0 /100
Last seen 2026-02-26 02:00
Hits
2
Errors
1
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
78.128.191.235 low
Open report
0 /100
Last seen 2026-01-24 02:00
Hits
1
Errors
0
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
147.228.125.31 low
Open report
0 /100
Last seen 2026-01-22 02:00
Hits
1
Errors
1
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
147.231.122.70 low
Open report
0 /100
Last seen 2026-01-26 02:00
Hits
1
Errors
1
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
147.251.22.236 low
Open report
0 /100
Last seen 2025-10-29 02:00
Hits
1
Errors
0
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
195.113.165.118 low
Open report
0 /100
Last seen 2026-02-02 02:00
Hits
1
Errors
1
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.
195.178.71.29 low
Open report
0 /100
Last seen 2025-09-13 03:00
Hits
1
Errors
0
Country
Czechia
ASN
AS2852
AS Org
CESNET z.s.p.o.