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Subnet Overview

Model: v1 Updated: Jan. 14, 2026, 11 a.m.
Report for 172.121.211.0/24 • United States • GTT Communications Inc. City report ASN report

High-level context about this subnet: size, density, traffic, risk, and geographic footprint.

Traffic ready Risk ready Snapshot ready Window Oct. 7, 2024, 1 a.m. → Oct. 14, 2024, 1 a.m. Model v1
CIDR
172.121.211.0/24
Prefix
/24
IP Version
IPv4
Subnet Size
256
Network Address
172.121.211.0
Broadcast / Last
172.121.211.255
Observed IPs
2
Footprint
0.781%
Total Hits
8
Total Errors
4
Risk Score
0
Risk Level
low
First Seen
Oct. 11, 2024, 9:31 a.m.
Last Seen
Oct. 12, 2024, 1:28 a.m.
Top Location
Santa Clara , California • United States
Top ASN
AS3257 • GTT Communications Inc.

Risk

Model: v1
Subnet risk score
0
Low
Risk gradient
Contributors are derived from subnet annotator rollups and normalized to your short codes (e.g. sqli, cmdi, trav, sfp, bot).
Contributing annotators
No contributor breakdown available.
Technical summary
Computed at
Jan. 14, 2026, 10:34 a.m.
Raw total
0.00
Total hits
8
Errors
4

Traffic

Rollup

Daily activity (hits per day) plus HTTP response mix and basic counters from the subnet traffic rollup.

Loading activity…
Rendering hits per day for this subnet.
Daily activity (hits per day).

Annotators (All-time)

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

No subnet annotator totals yet.

HTTP Status Breakdown

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

Loading status mix…
Fetching one histogram and rendering the chart.

Geolocation

Live geolocation and map tiles auto-load for this subnet (all IPs with coordinates).

Loading map…

Interesting IPs

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

172.121.211.226 low
Open report
0 /100
Last seen 2024-10-12 01:28
Hits
1
Errors
1
Country
United States
ASN
AS3257
AS Org
GTT Communications Inc.
172.121.211.196 low
Open report
0 /100
Last seen 2024-10-11 09:31
Hits
1
Errors
1
Country
United States
ASN
AS3257
AS Org
GTT Communications Inc.

Other subnets in this ASN / org

Compares other subnet snapshots matching this report’s ASN/org identity. “Same window” keeps the comparison within the latest snapshot window.

45.38.206.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2024-10-13 15:41
Hits
4
IPs
3
Footprint
1.172%
ASN
AS3257
AS Org
GTT Communications Inc.
Geo
Santa Clara, California, United States
172.121.236.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2024-10-12 20:13
Hits
3
IPs
3
Footprint
1.172%
ASN
AS3257
AS Org
GTT Communications Inc.
Geo
Santa Clara, California, United States
23.230.234.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2024-10-10 22:24
Hits
3
IPs
3
Footprint
1.172%
ASN
AS3257
AS Org
GTT Communications Inc.
Geo
Santa Clara, California, United States
23.230.186.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2024-10-11 20:49
Hits
3
IPs
2
Footprint
0.781%
ASN
AS3257
AS Org
GTT Communications Inc.
Geo
Santa Clara, California, United States
172.121.164.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2024-10-12 06:08
Hits
2
IPs
1
Footprint
0.391%
ASN
AS3257
AS Org
GTT Communications Inc.
Geo
Santa Clara, California, United States
172.120.26.0/24 /24 Risk 0
Open report
0 max · 0.000 avg
Last seen 2024-10-11 16:16
Hits
1
IPs
1
Footprint
0.391%
ASN
AS3257
AS Org
GTT Communications Inc.
Geo
Santa Clara, California, United States