Shame on you, stupid spammers.. Sh4meful  DMARC Spoof Detection

Network: UUNET63

This page shows DMARC authentication failures originating from the UUNET63 network. Learn more about this data.

Network Information
Org ID:
MCICS
Address:
22001 Loudoun County Pkwy, Ashburn, VA 20147
Countries:
US
Unique IPs:
1
CIDR:
63.64.0.0/10

Analysis

This network has contributed 1 unique IP address across 4 failed authentication events, accounting for 4 messages. Activity spans from September 24, 2024 to June 24, 2025, with peak volume in September 2024 (1 event). The top countries by failure volume are United States (100%). The most active source IP from this network includes 63.85.53.137 (4 failures). A single IP dominates activity from UUNET63, suggesting a concentrated or persistent source rather than distributed infrastructure.

Failures Detected from this Network
Showing 1-4 of 4 failures, affecting 4 messages
Countries