JavaScript is disabled. Some features of this site may not work properly. For a smoother experience, please enable JavaScript in your browser settings.

AbuseIPDB » 203.189.151.19

203.189.151.19 was found in our database!

This IP was reported 37 times. Confidence of Abuse is 48%: ?

48%

ISP	Cogetel Ltd, Online ISP, Cambodia
Usage Type	Fixed Line ISP
ASN	AS23673
Hostname(s)	headquarter.online.com.kh
Domain Name	online.com.kh
Country	🇰🇭 Cambodia
City	Phnom Penh, Phnom Penh

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

Report 203.189.151.19

Whois 203.189.151.19

IP Abuse Reports for 203.189.151.19:

This IP address has been reported a total of 37 times from 27 distinct sources. 203.189.151.19 was first reported on December 21st 2025, and the most recent report was 1 day 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	2026-06-11 15:08:33 (1 day ago)	5 Login Attempts	Port Scan Brute-Force
🇨🇭 Origon	2026-06-10 17:27:09 (2 days ago)	NOQUEUE - IP: 203.189.151.19 - Jun 10 19:27:09 plesk postfix/smtpd[1955329]: NOQUEUE: reject: RCPT ... show more NOQUEUE - IP: 203.189.151.19 - Jun 10 19:27:09 plesk postfix/smtpd[1955329]: NOQUEUE: reject: RCPT from unknown[203.189.151.19]: 554 5.7.1 Service unavailable; Client host [203.189.151.19] blocked using dnsbl-1.uceprotect.net; IP 203.189.151.19 is UCEPROTECT-Level 1 listed. See http://www.uceprotect.net/rblcheck.php?ipr=203.189.151.19; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<203.189.151.19> show less	Email Spam
🇨🇿 interconnect.cz	2026-06-07 18:24:36 (5 days ago)	[07/Jun/2026 20:24:36] IP address 203.189.151.19 found in DNS blacklist SpamHaus SBL-XBL, mail from ... show more [07/Jun/2026 20:24:36] IP address 203.189.151.19 found in DNS blacklist SpamHaus SBL-XBL, mail from <[email protected]> to <[email protected]> [07/Jun/2026 20:24:36] IP address 203.189.151.19 found in DNS blacklist SpamHaus SBL-XBL, mail from <[email protected]> to <[email protected]> [07/Jun/2026 20:24:36] Attempt to deliver to unknown recipient <[email protected]>, from <[email protected]>, IP address 203.189.151.19 ... show less	Brute-Force Email Spam
Anonymous	2026-05-30 13:43:51 (1 week ago)	2026-05-30T15:43:50.026985+02:00 gollum postfix/smtpd[1459615]: NOQUEUE: reject: RCPT from unknown[2 ... show more 2026-05-30T15:43:50.026985+02:00 gollum postfix/smtpd[1459615]: NOQUEUE: reject: RCPT from unknown[203.189.151.19]: 554 5.7.1 Service unavailable; Client host [203.189.151.19] blocked using zen.spamhaus.org; Listed by PBL, see https://check.spamhaus.org/query/ip/203.189.151.19 / Listed by CSS, see https://check.spamhaus.org/query/ip/203.189.151.19 / Listed by XBL, see https://check.spamhaus.org/query/ip/203.189.151.19; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<headquarter.online.com.kh> ... show less	Email Spam
🇩🇪 vereinshosting	2026-05-29 15:49:32 (2 weeks ago)	SPAM email (score: 22.9)	Email Spam
🇨🇭 Origon	2026-05-29 15:35:32 (2 weeks ago)	NOQUEUE - IP: 203.189.151.19 - May 29 17:35:32 plesk postfix/smtpd[1164700]: NOQUEUE: reject: RCPT ... show more NOQUEUE - IP: 203.189.151.19 - May 29 17:35:32 plesk postfix/smtpd[1164700]: NOQUEUE: reject: RCPT from unknown[203.189.151.19]: 554 5.7.1 Service unavailable; Client host [203.189.151.19] blocked using dnsbl-1.uceprotect.net; IP 203.189.151.19 is UCEPROTECT-Level 1 listed. See http://www.uceprotect.net/rblcheck.php?ipr=203.189.151.19; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<headquarter.online.com.kh> show less	Email Spam
🇩🇪 Viveronese	2026-05-29 15:04:48 (2 weeks ago)	SASL LOGIN authentication failed	Brute-Force
🇩🇪 filstal.org	2026-05-27 13:30:16 (2 weeks ago)	CrowdSec-Report: crowdsecurity/postfix-helo-rejected	Email Spam Brute-Force
🇨🇭 Origon	2026-05-26 13:56:07 (2 weeks ago)	NOQUEUE - IP: 203.189.151.19 - May 26 15:56:07 plesk postfix/smtpd[3167598]: NOQUEUE: reject: RCPT ... show more NOQUEUE - IP: 203.189.151.19 - May 26 15:56:07 plesk postfix/smtpd[3167598]: NOQUEUE: reject: RCPT from unknown[203.189.151.19]: 554 5.7.1 Service unavailable; Client host [203.189.151.19] blocked using dnsbl-1.uceprotect.net; IP 203.189.151.19 is UCEPROTECT-Level 1 listed. See http://www.uceprotect.net/rblcheck.php?ipr=203.189.151.19; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<headquarter.online.com.kh> show less	Email Spam
Anonymous	2026-05-14 15:00:39 (4 weeks ago)	Inbound email denied: 1 rejected connection(s) in 24h detected by CRMON security monitor. AbuseIPDB ... show more Inbound email denied: 1 rejected connection(s) in 24h detected by CRMON security monitor. AbuseIPDB confidence score at block time: 23%. show less	Email Spam
🇸🇰 EVISION	2026-05-05 04:45:00 (1 month ago)	Delivery Status Notification.	Email Spam Spoofing Phishing
🇪🇸 www.pk25.com	2026-04-21 18:25:33 (1 month ago)	2026-04-21 20:01:33 H=(headquarter.online.com.kh) [203.189.151.19] sender verify fail for <admin@ady ... show more 2026-04-21 20:01:33 H=(headquarter.online.com.kh) [203.189.151.19] sender verify fail for <[email protected]>: Unrouteable address 2026-04-21 20:01:33 H=(headquarter.online.com.kh) [203.189.151.19] F=<[email protected]> rejected RCPT <[email protected]>: Sender verify failed 2026-04-21 20:25:33 H=(203.189.151.19) [203.189.151.19] sender verify fail for <[email protected]>: Unrouteable address ... show less	Brute-Force
🇪🇸 librebit	2026-04-21 18:16:51 (1 month ago)	Listed IP in blacklist by postfix/dnsblog	Spoofing
🇨🇭 Origon	2026-04-10 19:20:30 (2 months ago)	NOQUEUE - IP: 203.189.151.19 - Apr 10 21:20:30 plesk postfix/smtpd[972491]: NOQUEUE: reject: RCPT f ... show more NOQUEUE - IP: 203.189.151.19 - Apr 10 21:20:30 plesk postfix/smtpd[972491]: NOQUEUE: reject: RCPT from unknown[203.189.151.19]: 554 5.7.1 Service unavailable; Client host [203.189.151.19] blocked using dnsbl-2.uceprotect.net; Net 203.189.151.0/24 is UCEPROTECT-Level2 listed because 4 impacts are seen from ONLINE-AS Cogetel Online, Cambodia, ISP, KH/AS23673 there. See: http://www.uceprotect.net/rblcheck.php?ipr=203.189.151.19 / Net 203.189.128.0/19 is UCEPROTECT-Level2 listed because 50 impacts are seen from ONLINE-AS Cogetel Online, Cambodia, ISP, KH/AS23673 there. See: http://www.uceprotect.net/rblcheck.php?ipr=203.189.151.19; from=<REDACTED@REDACTED> to=<REDACTED@REDACTED> proto=ESMTP helo=<headquarter.online.com.kh> show less	Email Spam
🇺🇸 octageeks.com	2026-04-02 04:08:56 (2 months ago)	Wordpress malicious attack:[octaflood]	Web App Attack

Showing 1 to 15 of 37 reports

Think this IP has been falsely reported? You may request to have the associated reports reviewed and removed. Request Takedown 🚩

Recently Reported IPs:

🇸🇬 165.245.185.54

🇫🇷 91.238.181.10

🇺🇸 20.66.122.118

🇸🇬 4.194.3.176

🇬🇧 213.166.84.42

🇷🇺 79.165.88.136

🇰🇷 220.80.223.144

🇫🇮 185.229.66.92

🇸🇬 152.42.164.200

🇨🇦 85.217.149.19

🇳🇱 45.148.10.157

🇺🇸 20.106.57.180

🇨🇳 14.103.117.173

🇺🇸 205.210.31.104

🇷🇺 195.161.68.153

🇺🇸 144.172.92.197

🇺🇸 136.118.127.41

🇨🇳 122.51.211.235

🇰🇷 119.205.179.217

🇰🇷 106.254.175.49