Sh4mefulNetwork: Claro NXT Telecomunicacoes Ltda
This page shows DMARC authentication failures originating from the Claro NXT Telecomunicacoes Ltda network. Learn more about this data.
Analysis
This network has contributed 19 unique IP addresses across 19 failed authentication events, accounting for 84 messages. Activity spans from November 16, 2024 to August 13, 2026, with peak volume in June 2025 (4 events). The top countries by failure volume are Brazil (100%). The most active source IPs from this network include 179.157.216.99 (2 failures), 177.192.210.37 (1 failure), 177.181.5.212 (1 failure). Failures from Claro NXT Telecomunicacoes Ltda are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.
Failures Detected from this Network
Showing 1-19 of 19 failures, affecting 84 messages| Date ▼ | Source IP | Country | Messages |
|---|---|---|---|
| 8/13/2026 | BR | 24 | |
| 7/18/2026 | BR | 4 | |
| 4/7/2026 | BR | 4 | |
| 4/4/2026 | BR | 4 | |
| 2/14/2026 | BR | 2 | |
| 8/27/2025 | BR | 4 | |
| 7/7/2025 | BR | 1 | |
| 7/7/2025 | BR | 1 | |
| 6/28/2025 | BR | 4 | |
| 6/23/2025 | BR | 1 | |
| 6/16/2025 | BR | 3 | |
| 6/16/2025 | BR | 4 | |
| 5/9/2025 | BR | 4 | |
| 5/9/2025 | BR | 4 | |
| 4/19/2025 | BR | 4 | |
| 4/19/2025 | BR | 8 | |
| 2/10/2025 | BR | 3 | |
| 11/22/2024 | BR | 1 | |
| 11/16/2024 | BR | 4 |
Countries