Network: AMAZON-EC2-USWESTOR

This page shows DMARC authentication failures originating from the AMAZON-EC2-USWESTOR network. Learn more about this data.

Network Information

Owner:: Amazon
Org ID:: AMAZO-47
Address:: EC2, EC2 1200 12th Ave South, Seattle, WA 98144
Countries:: US

Unique IPs:: 1

CIDR:: 50.112.0.0/16

Analysis

This network has contributed 1 unique IP address across 3 failed authentication events, accounting for 3 messages. Activity spans from October 3, 2025 to December 5, 2025, with peak volume in October 2025 (2 events). The top countries by failure volume are United States (100%). The most active source IP from this network includes 50.112.39.248 (3 failures). A single IP dominates activity from AMAZON-EC2-USWESTOR (Amazon), suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network

Showing 1-3 of 3 failures, affecting 3 messages

Show Confoundersⓘ

Date ▲	Source IP	Country	Messages
10/3/2025	50.112.39.248	US	1
10/10/2025	50.112.39.248	US	1
12/5/2025	50.112.39.248	US	1

Countries

United States