Shame on you, stupid spammers.. Sh4meful  DMARC Spoof Detection
🦋 Bluesky 🐘 Mastodon

Network: UNICOM-HK

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

Network Information
WHOIS Owner:
ORG-CUKO1-AP
Countries:
HK
Unique IPs:
2
CIDRs:
203.160.72.0/24, 203.160.86.0/24

Analysis

This network has contributed 2 unique IP addresses across 2 failed authentication events, accounting for 3 messages. Activity spans from April 9, 2026 to June 12, 2026, with peak volume in April 2026 (1 event). The top countries by failure volume are Hong Kong (100%). The most active source IPs from this network include 203.160.72.86 (1 failure), 203.160.86.163 (1 failure). Failures from UNICOM-HK are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.

Failures Detected from this Network
Showing 1-2 of 2 failures, affecting 3 messages
Date ▼ Source IP Country Messages
6/12/2026 203.160.72.86 HK 2
4/9/2026 203.160.86.163 HK 1
Countries