ArchivedNo longer active, data collection ran March 2024 to September 2026|9,442 records|3,409 source IPs|138 countriesAbout this archive
Shame on you, stupid spammers..Sh4meful  DMARC Spoof Detection
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Network: NETBLK-UUNET97DU

This page shows DMARC authentication failures originating from the NETBLK-UUNET97DU network. Learn more about this data.

Network Information
Org ID:
MCICS
Address:
22001 Loudoun County Pkwy, Ashburn, VA 20147
Countries:
US
Unique IPs:
5
CIDRs:
63.36.0.0/14, 63.48.0.0/12, 63.40.0.0/13, 63.40.0.0/13, 63.36.0.0/14, 63.48.0.0/12, (more)

Analysis

This network has contributed 5 unique IP addresses across 8 failed authentication events, accounting for 8 messages. Activity spans from April 17, 2024 to September 6, 2024, with peak volume in May 2024 (2 events). The top countries by failure volume are United States (100%). The most active source IPs from this network include 63.59.39.234 (3 failures), 63.59.67.71 (2 failures), 63.59.39.231 (1 failure). Failures from NETBLK-UUNET97DU are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.

Failures Detected from this Network
Showing 1-8 of 8 failures, affecting 8 messages
Date ▼ Source IP Country Messages
9/6/2024 63.59.67.73 US1
8/21/2024 63.59.39.234 US1
8/7/2024 63.59.67.71 US1
6/27/2024 63.59.67.71 US1
6/12/2024 63.59.39.234 US1
5/31/2024 63.59.67.70 US1
5/10/2024 63.59.39.234 US1
4/17/2024 63.59.39.231 US1
Countries