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: 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:
22
CIDRs:
115.16.0.0 - 115.23.255.255, 175.192.0.0 - 175.207.255.255, (more)

Analysis

This network has contributed 22 unique IP addresses across 27 failed authentication events, accounting for 80 messages. Activity spans from November 22, 2024 to July 19, 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 59.16.217.6 (4 failures), 59.12.88.184 (3 failures), 175.208.226.192 (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 1-27 of 27 failures, affecting 80 messages
Date ▼ Source IP Country Messages
7/19/2026 175.208.226.192 KR4
5/1/2026 59.16.217.6 KR2
4/28/2026 59.16.217.6 KR2
4/23/2026 59.16.217.6 KR2
4/8/2026 59.16.217.6 KR2
4/7/2026 59.11.199.26 KR4
4/6/2026 218.157.120.60 KR4
1/16/2026 222.107.13.65 KR4
12/1/2025 221.165.172.38 KR1
10/3/2025 210.103.2.5 KR4
9/29/2025 222.119.86.10 KR4
7/20/2025 59.26.190.26 KR4
7/3/2025 175.209.216.142 KR4
7/3/2025 222.99.70.23 KR2
7/3/2025 59.12.88.184 KR1
7/2/2025 211.229.164.20 KR1
7/2/2025 59.31.93.116 KR1
6/26/2025 59.1.164.125 KR2
6/24/2025 222.104.195.163 KR1
6/23/2025 59.4.101.129 KR1
4/20/2025 115.23.138.22 KR4
4/6/2025 59.12.88.184 KR4
4/4/2025 59.12.88.184 KR4
2/23/2025 211.225.137.234 KR4
2/15/2025 218.155.48.50 KR4
2/10/2025 59.12.29.225 KR6
11/22/2024 175.197.131.193 KR4
Countries