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

Network: KORNET-KR

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

Network Information
WHOIS Owner:
Korea Telecom
Countries:
KR
Unique IPs:
21
CIDRs:
115.16.0.0 - 115.23.255.255, 175.192.0.0 - 175.207.255.255, (more)

Analysis

This network has contributed 21 unique IP addresses across 23 failed authentication events, accounting for 70 messages. Activity spans from November 22, 2024 to April 8, 2026, with peak volume in July 2025 (6 events). The top countries by failure volume are South Korea (100%). The most active source IPs from this network include 59.12.88.184 (3 failures), 175.209.216.142 (1 failure), 175.197.131.193 (1 failure). Failures from KORNET-KR are concentrated in a single country, which may indicate a targeted campaign or regionally hosted infrastructure.

Failures Detected from this Network
Showing 1-23 of 23 failures, affecting 70 messages
Date โ–ฒ Source IP Country Messages
11/22/2024 175.197.131.193 KR 4
2/10/2025 59.12.29.225 KR 6
2/15/2025 218.155.48.50 KR 4
2/23/2025 211.225.137.234 KR 4
4/4/2025 59.12.88.184 KR 4
4/6/2025 59.12.88.184 KR 4
4/20/2025 115.23.138.22 KR 4
6/23/2025 59.4.101.129 KR 1
6/24/2025 222.104.195.163 KR 1
6/26/2025 59.1.164.125 KR 2
7/2/2025 211.229.164.20 KR 1
7/2/2025 59.31.93.116 KR 1
7/3/2025 175.209.216.142 KR 4
7/3/2025 222.99.70.23 KR 2
7/3/2025 59.12.88.184 KR 1
7/20/2025 59.26.190.26 KR 4
9/29/2025 222.119.86.10 KR 4
10/3/2025 210.103.2.5 KR 4
12/1/2025 221.165.172.38 KR 1
1/16/2026 222.107.13.65 KR 4
4/6/2026 218.157.120.60 KR 4
4/7/2026 59.11.199.26 KR 4
4/8/2026 59.16.217.6 KR 2
Countries