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AbuseIPDB » 155.4.209.51

155.4.209.51 was found in our database!

This IP was reported 604 times. Confidence of Abuse is 100%: ?

100%

ISP	Bahnhof AB, Sweden
Usage Type	Fixed Line ISP
ASN	AS8473
Hostname(s)	h-155-4-209-51.A463.priv.bahnhof.se
Domain Name	bahnhof.cloud
Country	🇸🇪 Sweden
City	Karlstad, Varmland

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

Report 155.4.209.51

Whois 155.4.209.51

IP Abuse Reports for 155.4.209.51:

This IP address has been reported a total of 604 times from 198 distinct sources. 155.4.209.51 was first reported on March 9th 2026, and the most recent report was 2 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
🇩🇪 chris_yooo	2026-06-04 20:00:44 (2 hours ago)	Jun 4 22:00:43 isp postfix/smtps/smtpd[3113735]: warning: h-155-4-209-51.A463.priv.bahnhof.se[155.4 ... show more Jun 4 22:00:43 isp postfix/smtps/smtpd[3113735]: warning: h-155-4-209-51.A463.priv.bahnhof.se[155.4.209.51]: SASL LOGIN authentication failed: (reason unavailable), [email protected] Jun 4 22:00:43 isp postfix/smtps/smtpd[3113735]: lost connection after AUTH from h-155-4-209-51.A463.priv.bahnhof.se[155.4.209.51] Jun 4 22:00:43 isp postfix/smtps/smtpd[3113735]: disconnect from h-155-4-209-51.A463.priv.bahnhof.se[155.4.209.51] ehlo=1 auth=0/1 commands=1/2 ... show less	Spoofing Brute-Force
🇧🇷 wagnerbocchi	2026-06-04 17:18:31 (4 hours ago)	2026-06-04T14:18:27.992107-03:00 wazuh sshd[22964]: Invalid user ubuntu from 155.4.209.51 port 45936 ... show more 2026-06-04T14:18:27.992107-03:00 wazuh sshd[22964]: Invalid user ubuntu from 155.4.209.51 port 45936 2026-06-04T14:18:27.996644-03:00 wazuh sshd[22964]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=155.4.209.51 2026-06-04T14:18:30.161070-03:00 wazuh sshd[22964]: Failed password for invalid user ubuntu from 155.4.209.51 port 45936 ssh2 ... show less	Brute-Force SSH
🇷🇴 iulianh	2026-06-04 16:34:33 (5 hours ago)	25,465,587	Brute-Force SSH
🇩🇪 Paul Smith	2026-06-04 15:28:05 (6 hours ago)	Email Auth Brute force attack 5/5 in last day	Brute-Force
🇺🇸 Brian Minton	2026-06-04 10:31:27 (11 hours ago)	2026-05-30 19:56:50 login_saslauthd_server authenticator failed for h-155-4-209-51.a463.priv.bahnhof ... show more 2026-05-30 19:56:50 login_saslauthd_server authenticator failed for h-155-4-209-51.a463.priv.bahnhof.se (eth1.1172.vrrp.fw05.1739.la3.ml.zerolag.com) [155.4.209.51]: 535 Incorrect authentication data (set_id=usenet) 2026-06-02 08:57:04 login_saslauthd_server authenticator failed for h-155-4-209-51.a463.priv.bahnhof.se (179-127-117-80.plugnet.inf.br) [155.4.209.51]: 535 Incorrect authentication data (set_id=www-data) 2026-06-04 05:31:26 login_saslauthd_server authenticator failed for h-155-4-209-51.a463.priv.bahnhof.se ([174.64.199.85]) [155.4.209.51]: 535 Incorrect authentication data (set_id=postmaster) ... show less	Brute-Force
🇵🇱 bmino.pl	2026-06-04 08:22:20 (13 hours ago)	Autoban IP(2): 155.4.209.51 - Hostname: Bahnhof AB - City: Karlstad - Region: Värmland County - Coun ... show more Autoban IP(2): 155.4.209.51 - Hostname: Bahnhof AB - City: Karlstad - Region: Värmland County - Country: Sweden - Location: 59.3784,13.5123 - Organization: General Private - failed attempts. show less	Brute-Force
🇩🇪 singertc	2026-06-04 06:27:16 (15 hours ago)	2026-06-04 08:27:16 login_server authenticator failed for h-155-4-209-51.a463.priv.bahnhof.se ([149. ... show more 2026-06-04 08:27:16 login_server authenticator failed for h-155-4-209-51.a463.priv.bahnhof.se ([149.54.51.42]) [155.4.209.51]: 535 Incorrect authentication data ([email protected]) ... show less	Brute-Force Hacking
🇫🇷 solution.it	2026-06-04 05:26:59 (16 hours ago)	Jun 4 07:26:49 vps789997 smtpd[4061585]: d00e0e0201a6d4dc smtp connected address=155.4.209.51 host= ... show more Jun 4 07:26:49 vps789997 smtpd[4061585]: d00e0e0201a6d4dc smtp connected address=155.4.209.51 host=h-155-4-209-51.A463.priv.bahnhof.se Jun 4 07:26:58 vps789997 smtpd[4061585]: d00e0e0201a6d4dc smtp failed-command command="AUTH LOGIN (password)" result="535 Authentication failed" show less	Brute-Force
🇩🇪 Gergely Szabo	2026-06-04 04:44:28 (17 hours ago)	Jun 04 06:44:27 [redacted] sshd[421950]: Invalid user pi from 155.4.209.51 port 36596 Jun 04 06:44:2 ... show more Jun 04 06:44:27 [redacted] sshd[421950]: Invalid user pi from 155.4.209.51 port 36596 Jun 04 06:44:28 [redacted] sshd[421950]: Connection closed by invalid user pi 155.4.209.51 port 36596 [preauth] show less	Brute-Force SSH
🇭🇺 Lacika555	2026-06-04 04:40:23 (17 hours ago)	RdpGuard detected brute-force attempt on SMTP	Brute-Force
🇬🇧 cticom.ms	2026-06-04 03:34:20 (18 hours ago)	Email Auth Brute force attack 3/3 in last day	Brute-Force
🇺🇸 COMPLEX	2026-06-04 03:10:38 (19 hours ago)	SSH brute force attack detected by fail2ban - attempted unauthorized access	Brute-Force SSH
Anonymous	2026-06-04 02:30:18 (19 hours ago)	IMAP password guessing	Brute-Force
🇳🇴 Kotiacat_one	2026-06-04 02:02:22 (20 hours ago)	2026-06-04T02:02:21.528400+00:00 powarnitzynalexander6.serv.host sshd-session[29986]: Invalid user a ... show more 2026-06-04T02:02:21.528400+00:00 powarnitzynalexander6.serv.host sshd-session[29986]: Invalid user administrator from 155.4.209.51 port 36490 ... show less	Brute-Force SSH
🇩🇪 kreativstrecke	2026-06-04 01:37:31 (20 hours ago)	2026-06-04T03:37:29.190154+02:00 srv03 postfix/smtps/smtpd[20973]: warning: h-155-4-209-51.A463.priv ... show more 2026-06-04T03:37:29.190154+02:00 srv03 postfix/smtps/smtpd[20973]: warning: h-155-4-209-51.A463.priv.bahnhof.se[155.4.209.51]: SASL LOGIN authentication failed: (reason unavailable), sasl_username=stef 2026-06-04T03:37:30.631849+02:00 srv03 postfix/smtps/smtpd[20973]: lost connection after AUTH from h-155-4-209-51.A463.priv.bahnhof.se[155.4.209.51] 2026-06-04T03:37:30.632121+02:00 srv03 postfix/smtps/smtpd[20973]: disconnect from h-155-4-209-51.A463.priv.bahnhof.se[155.4.209.51] ehlo=1 auth=0/1 commands=1/2 ... show less	Brute-Force

Showing 1 to 15 of 604 reports

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