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AbuseIPDB » 23.242.28.103

23.242.28.103 was found in our database!

This IP was reported 146 times. Confidence of Abuse is 100%: ?

100%

ISP	Charter Communications Inc
Usage Type	Fixed Line ISP
ASN	AS20001
Hostname(s)	syn-023-242-028-103.res.spectrum.com
Domain Name	charter.com
Country	🇺🇸 United States of America
City	Hidden Hills, California

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

Report 23.242.28.103

Whois 23.242.28.103

IP Abuse Reports for 23.242.28.103:

This IP address has been reported a total of 146 times from 92 distinct sources. 23.242.28.103 was first reported on July 14th 2026, and the most recent report was 55 minutes 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
🇩🇪 kreativstrecke	2026-07-20 14:53:29 (55 minutes ago)	2026-07-20T16:53:28.319206+02:00 srv03 postfix/submission/smtpd[2733715]: warning: unknown[23.242.28 ... show more 2026-07-20T16:53:28.319206+02:00 srv03 postfix/submission/smtpd[2733715]: warning: unknown[23.242.28.103]: SASL LOGIN authentication failed: (reason unavailable), [email protected] ... show less	Brute-Force
Anonymous	2026-07-20 14:13:34 (1 hour ago)	Authentication failure	Brute-Force
🇦🇺 brocococonut	2026-07-20 14:10:09 (1 hour ago)	2026-07-20 17:46:24 dovecot_login authenticator failed for (tdev152-149.codetel.net.do) [23.242.28.1 ... show more 2026-07-20 17:46:24 dovecot_login authenticator failed for (tdev152-149.codetel.net.do) [23.242.28.103]: 535 Incorrect authentication data (set_id=cleaning) 2026-07-20 12:40:06 dovecot_login authenticator failed for ([31.173.0.140]) [23.242.28.103]: 535 Incorrect authentication data ([email protected]) 2026-07-20 16:53:33 dovecot_login authenticator failed for ([187.50.204.49]) [23.242.28.103]: 535 Incorrect authentication data ([email protected]) 2026-07-20 17:46:24 dovecot_login authenticator failed for (tdev152-149.codetel.net.do) [23.242.28.103]: 535 Incorrect authentication data (set_id=cleaning) 2026-07-20 12:40:06 dovecot_login authenticator failed for ([31.173.0.140]) [23.242.28.103]: 535 Incorrect authentication data ([email protected]) ... show less	Brute-Force
🇬🇧 gaztronics	2026-07-20 13:37:52 (2 hours ago)	2026-07-20T13:37:50.380783 liberator sendmail[3425186]: 66KCbitw3425186: syn-023-242-028-103.res.spe ... show more 2026-07-20T13:37:50.380783 liberator sendmail[3425186]: 66KCbitw3425186: syn-023-242-028-103.res.spectrum.com [23.242.28.103] (may be forged) did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA ... show less	Brute-Force
🇬🇧 gaztronics	2026-07-20 12:37:52 (3 hours ago)	2026-07-20T12:37:50.306001 liberator sendmail[3425186]: 66KCbitw3425186: AUTH failure (LOGIN): authe ... show more 2026-07-20T12:37:50.306001 liberator sendmail[3425186]: 66KCbitw3425186: AUTH failure (LOGIN): authentication failure (-13) SASL(-13): authentication failure: checkpass failed, [email protected], relay=syn-023-242-028-103.res.spectrum.com [23.242.28.103] (may be forged) ... show less	Brute-Force
🇩🇪 Sparxx	2026-07-20 12:07:45 (3 hours ago)	2026-07-20T14:07:43.058977+02:00 srv postfix/submissions/smtpd[1932092]: warning: unknown[23.242.28. ... show more 2026-07-20T14:07:43.058977+02:00 srv postfix/submissions/smtpd[1932092]: warning: unknown[23.242.28.103]: SASL LOGIN authentication failed: (reason unavailable), [email protected] 2026-07-20T14:07:44.286038+02:00 srv postfix/submissions/smtpd[1932092]: lost connection after AUTH from unknown[23.242.28.103] 2026-07-20T14:07:44.286216+02:00 srv postfix/submissions/smtpd[1932092]: disconnect from unknown[23.242.28.103] ehlo=1 auth=0/1 commands=1/2 ... show less	Brute-Force
🇦🇺 brocococonut	2026-07-20 07:46:25 (8 hours ago)	2026-07-20 12:40:06 dovecot_login authenticator failed for ([31.173.0.140]) [23.242.28.103]: 535 Inc ... show more 2026-07-20 12:40:06 dovecot_login authenticator failed for ([31.173.0.140]) [23.242.28.103]: 535 Incorrect authentication data ([email protected]) 2026-07-20 12:40:06 dovecot_login authenticator failed for ([31.173.0.140]) [23.242.28.103]: 535 Incorrect authentication data ([email protected]) 2026-07-20 16:53:33 dovecot_login authenticator failed for ([187.50.204.49]) [23.242.28.103]: 535 Incorrect authentication data ([email protected]) 2026-07-20 16:53:33 dovecot_login authenticator failed for ([187.50.204.49]) [23.242.28.103]: 535 Incorrect authentication data ([email protected]) 2026-07-20 17:46:24 dovecot_login authenticator failed for (tdev152-149.codetel.net.do) [23.242.28.103]: 535 Incorrect authentication data (set_id=cleaning) ... show less	Brute-Force
Anonymous	2026-07-20 07:14:52 (8 hours ago)	2026-07-20T09:14:51.665324+02:00 host postfix/smtpd[907691]: warning: unknown[23.242.28.103]: SASL L ... show more 2026-07-20T09:14:51.665324+02:00 host postfix/smtpd[907691]: warning: unknown[23.242.28.103]: SASL LOGIN authentication failed: authentication failure, [email protected] ... show less	Brute-Force
🇩🇪 singertc	2026-07-20 05:59:18 (9 hours ago)	2026-07-20 07:59:17 login_server authenticator failed for (187-51-198-202.customer.tdatabrasil.net.b ... show more 2026-07-20 07:59:17 login_server authenticator failed for (187-51-198-202.customer.tdatabrasil.net.br) [23.242.28.103]: 535 Incorrect authentication data ([email protected]) ... show less	Brute-Force Hacking
🇫🇷 smtp.com.es	2026-07-20 04:13:24 (11 hours ago)	Brute force attempt.	Brute-Force Exploited Host
🇨🇿 sajmon0011	2026-07-20 03:23:09 (12 hours ago)	2026-07-20T05:23:08.532479 server1.sajmon0011.cz auth[102256]: pam_unix(dovecot:auth): authenticatio ... show more 2026-07-20T05:23:08.532479 server1.sajmon0011.cz auth[102256]: pam_unix(dovecot:auth): authentication failure; logname= uid=0 euid=0 tty=dovecot ruser=hostmaster rhost=23.242.28.103 ... show less	Brute-Force
🇩🇪 mnpx	2026-07-20 03:17:12 (12 hours ago)	SMTP brute forcing (4× over 6h:31m); first seen here 2026-07-16T17:13Z	Brute-Force
🇩🇪 mnpx	2026-07-20 03:17:12 (12 hours ago)	SMTP brute forcing (3× over 3h:54m); first seen here 2026-07-16T17:13Z	Brute-Force
🇩🇪 EGP Abuse Dept	2026-07-20 02:20:25 (13 hours ago)	SMTP AUTH attack	Brute-Force
🇩🇪 FeG Deutschland	2026-07-20 02:12:03 (13 hours ago)	Mail: - login with unknown user - bruteforce	Brute-Force

Showing 1 to 15 of 146 reports

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