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AbuseIPDB » 137.220.145.66

137.220.145.66 was found in our database!

This IP was reported 12 times. Confidence of Abuse is 46%: ?

46%

ISP	CTG Server Ltd.
Usage Type	Data Center/Web Hosting/Transit
ASN	AS152194
Domain Name	ctgserver.com
Country	🇯🇵 Japan
City	Tokyo, Tokyo

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

Report 137.220.145.66

Whois 137.220.145.66

IP Abuse Reports for 137.220.145.66:

This IP address has been reported a total of 12 times from 8 distinct sources. 137.220.145.66 was first reported on July 9th 2026, and the most recent report was 3 days 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
🇬🇧 iss-security-operations	2026-07-12 12:01:29 (3 days ago)	Seen attempting a bruteforce against SMTP services	Brute-Force
🇬🇧 iss-security-operations	2026-07-11 12:01:24 (4 days ago)	Seen attempting a bruteforce against SMTP services	Brute-Force
🇱🇻 bonux-s	2026-07-10 06:24:00 (5 days ago)	[137.220.145.66]: SASL LOGIN authentication failed: auth..	Brute-Force
🇺🇸 bigscoots.com	2026-07-10 02:15:49 (5 days ago)	(smtpauth) Failed SMTP AUTH login from 137.220.145.66 (JP/Japan/-): 5 in the last 3600 secs; Ports: ... show more (smtpauth) Failed SMTP AUTH login from 137.220.145.66 (JP/Japan/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-07-09 22:14:50 dovecot_login authenticator failed for H=(HnCPiEx) [137.220.145.66]:59403: 535 Incorrect authentication data ([email protected]) 2026-07-09 22:14:58 dovecot_login authenticator failed for H=(49PEbDgiR) [137.220.145.66]:49943: 535 Incorrect authentication data ([email protected]) 2026-07-09 22:15:09 dovecot_login authenticator failed for H=(SJqRdVxl) [137.220.145.66]:64082: 535 Incorrect authentication data ([email protected]) 2026-07-09 22:15:27 dovecot_login authenticator failed for H=(RWydkJan) [137.220.145.66]:56954: 535 Incorrect authentication data ([email protected]) 2026-07-09 22:15:46 dovecot_login authenticator failed for H=(k8sZ2Eyeer) [137.220.145.66]:63289: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-07-09 23:53:54 (5 days ago)	(smtpauth) Failed SMTP AUTH login from 137.220.145.66 (JP/Japan/-): 5 in the last 3600 secs; Ports: ... show more (smtpauth) Failed SMTP AUTH login from 137.220.145.66 (JP/Japan/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-07-09 19:22:15 dovecot_login authenticator failed for H=(io8IOzKu) [137.220.145.66]:57149: 535 Incorrect authentication data 2026-07-09 19:53:16 dovecot_login authenticator failed for H=(esCfzi6G) [137.220.145.66]:50740: 535 Incorrect authentication data ([email protected]) 2026-07-09 19:53:23 dovecot_login authenticator failed for H=(J9jdw8bL99) [137.220.145.66]:56982: 535 Incorrect authentication data ([email protected]) 2026-07-09 19:53:34 dovecot_login authenticator failed for H=(r8bhvqy3X) [137.220.145.66]:51789: 535 Incorrect authentication data ([email protected]) 2026-07-09 19:53:52 dovecot_login authenticator failed for H=(xyv5XD3L) [137.220.145.66]:62394: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇺🇸 bigscoots.com	2026-07-09 23:19:19 (5 days ago)	(smtpauth) Failed SMTP AUTH login from 137.220.145.66 (JP/Japan/-): 5 in the last 3600 secs; Ports: ... show more (smtpauth) Failed SMTP AUTH login from 137.220.145.66 (JP/Japan/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-07-09 19:18:15 dovecot_login authenticator failed for H=(tZnBWg) [137.220.145.66]:53551: 535 Incorrect authentication data ([email protected]) 2026-07-09 19:18:22 dovecot_login authenticator failed for H=(iDKyzY) [137.220.145.66]:53164: 535 Incorrect authentication data ([email protected]) 2026-07-09 19:18:34 dovecot_login authenticator failed for H=(bEy6Mi2) [137.220.145.66]:56833: 535 Incorrect authentication data ([email protected]) 2026-07-09 19:18:53 dovecot_login authenticator failed for H=(vXE2M15fc) [137.220.145.66]:58386: 535 Incorrect authentication data ([email protected]) 2026-07-09 19:19:14 dovecot_login authenticator failed for H=(LRLkPRZG8O) [137.220.145.66]:60561: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇫🇷 LRob	2026-07-09 18:08:12 (5 days ago)	CrowdSec: SMTP mail server abuse (spam / auth failures) \| mechanism: ["LOGIN"]	Email Spam Brute-Force
🇺🇸 Ghost Rider	2026-07-09 17:13:23 (5 days ago)	RdpGuard detected brute-force attempt on SMTP	Brute-Force
🇩🇪 xortex	2026-07-09 15:43:31 (6 days ago)	brute forces mailboxes	Brute-Force
🇯🇵 kawanchu	2026-07-09 15:15:22 (6 days ago)	Brute-force attack via SMTP AUTH. Repeated login failures on mail server.	Brute-Force
🇺🇸 bigscoots.com	2026-07-09 14:50:45 (6 days ago)	(smtpauth) Failed SMTP AUTH login from 137.220.145.66 (JP/Japan/-): 5 in the last 3600 secs; Ports: ... show more (smtpauth) Failed SMTP AUTH login from 137.220.145.66 (JP/Japan/-): 5 in the last 3600 secs; Ports: 25,465,587; Direction: 0; Trigger: LF_SMTPAUTH; Logs: 2026-07-09 10:49:41 dovecot_login authenticator failed for H=(jdluOTLjsH) [137.220.145.66]:57930: 535 Incorrect authentication data ([email protected]) 2026-07-09 10:49:49 dovecot_login authenticator failed for H=(q6H7XIlB6) [137.220.145.66]:60606: 535 Incorrect authentication data ([email protected]) 2026-07-09 10:50:01 dovecot_login authenticator failed for H=(0PLEaec2) [137.220.145.66]:61995: 535 Incorrect authentication data ([email protected]) 2026-07-09 10:50:21 dovecot_login authenticator failed for H=(GvMyRR) [137.220.145.66]:62301: 535 Incorrect authentication data ([email protected]) 2026-07-09 10:50:42 dovecot_login authenticator failed for H=(X1NowR) [137.220.145.66]:63693: 535 Incorrect authentication data ([email protected]) show less	Brute-Force SSH
🇯🇵 ki3	2026-07-09 14:14:58 (6 days ago)	Fail2Ban: Postfix Attack 137.220.145.66 1783606497.0(JST)	Email Spam Brute-Force

Showing 1 to 12 of 12 reports

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