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AbuseIPDB » 121.131.220.167

121.131.220.167 was found in our database!

This IP was reported 62 times. Confidence of Abuse is 61%: ?

61%

ISP	Korea Telecom
Usage Type	Fixed Line ISP
ASN	AS4766
Domain Name	kt.com
Country	🇰🇷 Korea (the Republic of)
City	Seoul, Seoul

IP info including ISP, Usage Type, and Location provided by IPInfo. Updated weekly.

Report 121.131.220.167

Whois 121.131.220.167

IP Abuse Reports for 121.131.220.167:

This IP address has been reported a total of 62 times from 48 distinct sources. 121.131.220.167 was first reported on July 29th 2025, and the most recent report was 9 hours ago.

Recent Reports: We have received reports of abusive activity from this IP address within the last week. It is potentially still actively engaged in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
Anonymous	2026-10-26 18:29:47 (9 hours ago)	2026-10-26T20:29:46.695776+02:00 soli-gate postfix/submissions/smtpd[19717]: warning: unknown[121.13 ... show more 2026-10-26T20:29:46.695776+02:00 soli-gate postfix/submissions/smtpd[19717]: warning: unknown[121.131.220.167]: SASL LOGIN authentication failed: authentication failure, sasl_username=kurang ... show less	Brute-Force
🇳🇱 globcom	2026-10-26 17:52:57 (9 hours ago)	Mail-BruteForce	Email Spam Brute-Force
🇷🇴 clauss	2026-10-26 16:28:33 (11 hours ago)	IP reached maximum auth failures for a one day block	Brute-Force
🇮🇹 CoreTech srl	2026-10-26 12:47:38 (14 hours ago)	"SMTP Login failed": count(IP)=12.0is-6411d9d7 13:44:44.635 [98.174.60.198] SMTP Login failed: Domai ... show more "SMTP Login failed": count(IP)=12.0is-6411d9d7 13:44:44.635 [98.174.60.198] SMTP Login failed: Domain [rodo.it] not foundis-6411d9d7 13:44:44.635 [98.174.60.198] SMTP Login failed: Username or password is incorrect.is-6411d9d7 13:44:52.792 [203.221.63.201] SMTP Login failed: Incorrect email address [rudi.mari]is-6411d9d7 13:44:52.792 [203.221.63.201] SMTP Login failed: Username or password is incorrect.mail3-dc1 13:45:14.159 [103.99.17.3] SMTP Login failed: Username or password is incorrect.mail3-dc1 13:45:14.159 [103.99.17.3] SMTP Login failed: Incorrect password for user [[email protected]]mail3-dc1 13:45:21.371 [121.131.220.167] SMTP Login failed: Incorrect email address [mario]mail3-dc1 13:45:21.371 [121.131.220.167] SMTP Login failed: Username or password is incorrect.Smartermail 13:45:37.559 [24.102.254.70] SMTP Login failed: Username or password is incorrect. show less	Brute-Force
🇮🇹 VHosting	2026-10-26 10:40:04 (17 hours ago)	Detected mail brute force attack from different servers	Brute-Force
🇮🇹 CoreTech srl	2026-10-26 10:37:43 (17 hours ago)	"SMTP Login failed": count(IP)=10.0Smartermail 11:32:22.973 [24.88.164.104] SMTP Login failed: Usern ... show more "SMTP Login failed": count(IP)=10.0Smartermail 11:32:22.973 [24.88.164.104] SMTP Login failed: Username or password is incorrect.Smartermail 11:32:22.973 [24.88.164.104] SMTP Login failed: Domain [mcravenna.it] not foundSmartermail 11:32:27.015 [119.157.60.137] SMTP Login failed: Username or password is incorrect.Smartermail 11:32:27.015 [119.157.60.137] SMTP Login failed: Incorrect email address [info]Smartermail 11:32:59.452 [78.208.127.8] SMTP Login failed: Username or password is incorrect.Smartermail 11:32:59.452 [78.208.127.8] SMTP Login failed: Domain [gierrehome.com] not foundSmartermail 11:33:38.414 [85.165.130.77] SMTP Login failed: Username or password is incorrect.Smartermail 11:33:38.414 [85.165.130.77] SMTP Login failed: Domain [stedosystem.it] not foundSmartermail 11:33:44.777 [121.131.220.167] SMTP Login failed: Username or password is incorrect. show less	Brute-Force DDoS Attack
🇩🇪 Paul Smith	2026-10-26 09:20:47 (18 hours ago)	Email Auth Brute force attack 1/1 in last day	Brute-Force
Anonymous	2026-10-26 09:04:48 (18 hours ago)	2026-10-26T11:04:47.510931+02:00 soli-gate postfix/submissions/smtpd[4079815]: warning: unknown[121. ... show more 2026-10-26T11:04:47.510931+02:00 soli-gate postfix/submissions/smtpd[4079815]: warning: unknown[121.131.220.167]: SASL LOGIN authentication failed: authentication failure, [email protected] ... show less	Brute-Force
🇸🇮 basing	2026-10-26 08:37:31 (19 hours ago)	2026-10-26 09:37:31 z4 SASL PLAIN auth failed: rhost=121.131.220.167...	Brute-Force
Anonymous	2026-10-26 07:21:03 (20 hours ago)	BruteForce IMAP/POP3/SMTP	Brute-Force
🇵🇱 UMP-PL	2026-10-26 06:51:04 (20 hours ago)	SMTP bruteforce	Brute-Force
🇺🇸 interbiznw.com	2026-03-08 18:24:59 (7 months ago)		Port Scan Hacking Spoofing Brute-Force Exploited Host
🇨🇿 lp	2025-11-22 08:52:14 (11 months ago)	Email account brute force: 1 attempts were recorded from 121.131.220.167 2025-11-22T08:21:18+01:00 w ... show more Email account brute force: 1 attempts were recorded from 121.131.220.167 2025-11-22T08:21:18+01:00 warning: unknown[121.131.220.167]: SASL LOGIN authentication failed: authentication failure, [email protected] show less	Brute-Force
Anonymous	2025-11-22 08:43:55 (11 months ago)	SMTP brute force - auth failed	Brute-Force Exploited Host
🇹🇭 thaizone.com	2025-11-22 07:21:09 (11 months ago)	Password guessing attack (SM11) #1	Email Spam Brute-Force

Showing 1 to 15 of 62 reports

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