AS4766 — Korea Telecom Threat Intelligence

Network Threat Summary

AS4766 (Korea Telecom) has 84,760 malicious IP addresses with 2,338,687 abuse reports across 1 countries. First activity recorded 2022-06-29, most recent activity 2026-10-04.

Threat Profile: The primary attack categories observed from this network are reconnaissance, reputation low, malware infrastructure. This autonomous system is among the most prolific threat sources globally, with an exceptionally high concentration of malicious IP addresses. Affected countries include KR.

Risk Assessment: CRITICAL - This autonomous system is a major source of malicious activity, ranking in the top 1% of threat networks globally. Consider blocking the entire ASN or implementing strict rate limiting.

Top Attack Categories

• Reconnaissance 646,709 reports
• Reputation Low 119,557 reports
• Malware Infrastructure 75,159 reports
• Aggregated Threat 36,069 reports
• Suspicious Activity 31,168 reports

Top Affected Countries

• KR 1,851,164 reports

Most Reported IPs

• 211.106.133.202 1,444 reports
• 211.223.107.86 1,429 reports
• 118.37.214.187 1,425 reports
• 220.80.223.144 1,419 reports
• 222.108.100.117 1,410 reports

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