Sh4mefulNetwork: WHOIS_LOOKUP_FAILED
This page shows DMARC authentication failures originating from the WHOIS_LOOKUP_FAILED network. Learn more about this data.
Analysis
This network has contributed 33 unique IP addresses across 36 failed authentication events, accounting for 80 messages. Activity spans from March 13, 2024 to January 21, 2026, with peak volume in April 2025 (6 events). The top countries by failure volume are United States (26%), Brazil (13%), Algeria (11%). The most active source IPs from this network include 162.215.220.95 (3 failures), 195.145.174.8 (2 failures), 38.91.100.225 (2 failures). Failures from WHOIS_LOOKUP_FAILED span 16 countries with no dominant source, which is consistent with forwarding infrastructure, relay services, or broadly distributed automated activity.
Failures Detected from this Network
Showing 1-36 of 36 failures, affecting 80 messages| Date ▼ | Source IP | Country | Messages |
|---|---|---|---|
| 1/21/2026 | GB | 1 | |
| 11/12/2025 | GM | 1 | |
| 7/7/2025 | DO | 1 | |
| 7/7/2025 | BR | 1 | |
| 7/2/2025 | TN | 1 | |
| 6/25/2025 | PE | 1 | |
| 6/24/2025 | VE | 1 | |
| 6/21/2025 | US | 1 | |
| 6/16/2025 | DZ | 4 | |
| 6/10/2025 | VE | 4 | |
| 5/13/2025 | US | 1 | |
| 4/22/2025 | AO | 8 | |
| 4/18/2025 | TN | 4 | |
| 4/9/2025 | US | 1 | |
| 4/7/2025 | GB | 1 | |
| 4/5/2025 | CI | 4 | |
| 4/4/2025 | MX | 4 | |
| 3/20/2025 | KR | 1 | |
| 2/8/2025 | DZ | 4 | |
| 2/7/2025 | IN | 4 | |
| 12/24/2024 | US | 1 | |
| 11/23/2024 | BR | 8 | |
| 11/22/2024 | VE | 1 | |
| 11/19/2024 | MA | 4 | |
| 11/13/2024 | DE | 1 | |
| 11/12/2024 | US | 3 | |
| 10/19/2024 | US | 1 | |
| 10/8/2024 | US | 2 | |
| 10/7/2024 | US | 1 | |
| 9/24/2024 | US | 1 | |
| 9/20/2024 | US | 1 | |
| 6/9/2024 | US | 1 | |
| 6/5/2024 | US | 1 | |
| 6/2/2024 | US | 1 | |
| 4/1/2024 | US | 2 | |
| 3/13/2024 | DE | 3 |