IP Address: 18.210.90.90
ℹ️ Network Annotation: Amazon Web Services (AWS)
Last updated: 1/29/2026
This is (part of) the AWS public cloud. Some email protection services run in AWS, but it is also an attack/spam vector.
About this Data
▶The data here is from DMARC analysis for domains I administer, drawn from a larger dataset (comprising millions of authentication records and messages). These entries are from email attempts that failed both SPF and DKIM (and there are often alignment issues - hidden here). In many cases, these failures indicate unauthorized use of the domain name, and are commonly associated with spoofing, phishing, or other abusive mail activity.
Geolocation Information
- Country:
- US United States
- Region:
- Virginia
- City:
- Ashburn
- Coordinates:
- 39.0469, -77.4903
WHOIS Information
- Network Name:
- AT-88-Z
- CIDR:
18.128.0.0/9, 18.32.0.0/11, 18.64.0.0/10- Reverse DNS:
-
ec2-18-210-90-90.compute-1.amazonaws.com
Last updated: 2/5/2026
Failures Detected from this IP
Showing 1-40 of 40 (failures, affecting 95 messages)| Date ▲ | Messages |
|---|---|
| 9/13/2024 | 1 |
| 9/18/2024 | 1 |
| 9/20/2024 | 1 |
| 9/25/2024 | 1 |
| 9/27/2024 | 4 |
| 12/17/2024 | 3 |
| 12/18/2024 | 4 |
| 12/19/2024 | 1 |
| 1/17/2025 | 1 |
| 3/19/2025 | 2 |
| 3/28/2025 | 3 |
| 5/2/2025 | 5 |
| 5/3/2025 | 3 |
| 6/4/2025 | 15 |
| 6/11/2025 | 1 |
| 6/27/2025 | 9 |
| 6/28/2025 | 3 |
| 7/18/2025 | 2 |
| 7/31/2025 | 2 |
| 9/9/2025 | 2 |
| 9/10/2025 | 2 |
| 9/11/2025 | 1 |
| 9/16/2025 | 1 |
| 9/18/2025 | 1 |
| 9/24/2025 | 2 |
| 10/2/2025 | 1 |
| 11/12/2025 | 1 |
| 11/18/2025 | 1 |
| 11/19/2025 | 1 |
| 12/2/2025 | 1 |
| 12/3/2025 | 1 |
| 12/6/2025 | 1 |
| 12/9/2025 | 1 |
| 12/17/2025 | 1 |
| 1/6/2026 | 2 |
| 1/9/2026 | 3 |
| 1/13/2026 | 2 |
| 1/16/2026 | 3 |
| 1/27/2026 | 2 |
| 1/30/2026 | 3 |