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AbuseIPDB » 183.166.83.106

183.166.83.106 was found in our database!

This IP was reported 53 times. Confidence of Abuse is 100%: ?

100%

ISP	CHINANET Anhui province network
Usage Type	Fixed Line ISP
ASN	AS4134
Domain Name	chinatelecom.cn
Country	🇨🇳 China
City	Hefei, Anhui

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

Report 183.166.83.106

Whois 183.166.83.106

IP Abuse Reports for 183.166.83.106:

This IP address has been reported a total of 53 times from 39 distinct sources. 183.166.83.106 was first reported on October 27th 2024, and the most recent report was 5 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
🇺🇸 shaunc	2026-06-14 05:10:14 (5 hours ago)	Jun 14 00:10:10 mailman postfix/smtpd[9688]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 ... show more Jun 14 00:10:10 mailman postfix/smtpd[9688]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 <3644951823[at]qq.com>: Relay access denied; from=<[redacted][at][redacted]> to=<3644951823[at]qq.com> proto=ESMTP helo=<localhost> Jun 14 00:10:12 mailman postfix/smtpd[9688]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 <3644951823[at]qq.com>: Relay access denied; from=<[redacted][at][redacted]> to=<3644951823[at]qq.com> proto=ESMTP helo=<localhost> show less	Email Spam
🇬🇧 chrisw	2026-06-13 20:55:47 (13 hours ago)	2026-06-13T21:55:39.042155l03.customhost.org.uk postfix/smtpd[25165]: NOQUEUE: reject: RCPT from unk ... show more 2026-06-13T21:55:39.042155l03.customhost.org.uk postfix/smtpd[25165]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 Service unavailable; Client host [183.166.83.106] blocked using sbl.spamhaus.org; Listed by CSS, see https://check.spamhaus.org/query/ip/183.166.83.106; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> 2026-06-13T21:55:41.220021l03.customhost.org.uk postfix/smtpd[25165]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 Service unavailable; Client host [183.166.83.106] blocked using sbl.spamhaus.org; Listed by CSS, see https://check.spamhaus.org/query/ip/183.166.83.106; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> 2026-06-13T21:55:43.028282l03.customhost.org.uk postfix/smtps/smtpd[24691]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 Service unavailable; Client host [183.166.83.106] blocked using sbl.spamhaus.org; Listed by CSS, see https://check.spamhaus.org/query/ip/1 ... show less	Web Spam Brute-Force Exploited Host
Anonymous	2026-06-13 20:33:02 (13 hours ago)	...	Brute-Force
🇪🇸 ofm-abuse	2026-06-13 19:09:23 (15 hours ago)	MAIL Dropped in one of SASL AUTH, RBL, DDOS PREGREET, TWO MANY ERRORS ...	Port Scan Brute-Force
🇪🇸 librebit	2026-06-13 08:02:38 (1 day ago)	Listed IP in blacklist by postfix/dnsblog	Spoofing
🇳🇱 JCB	2026-06-12 13:05:00 (1 day ago)		Email Spam
🇮🇱 spd.co.il	2026-06-12 06:01:30 (2 days ago)	Port scan detected on multiple ports	Port Scan
🇷🇴 ICT	2026-06-11 07:37:59 (3 days ago)	Jun 11 10:37:37 acad-icht postfix/smtpd[139982]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: ... show more Jun 11 10:37:37 acad-icht postfix/smtpd[139982]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> Jun 11 10:37:40 acad-icht postfix/smtpd[139982]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> Jun 11 10:37:55 acad-icht postfix/smtpd[139988]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> Jun 11 10:37:59 acad-icht postfix/smtpd[139989]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> ... show less	Email Spam Hacking
🇪🇸 el-brujo	2026-06-11 03:58:05 (3 days ago)	2026-06-11T05:58:01.986148 ns2.elhacker.net postfix/smtpd[1806154]: NOQUEUE: reject: RCPT from unkno ... show more 2026-06-11T05:58:01.986148 ns2.elhacker.net postfix/smtpd[1806154]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> 2026-06-11T05:58:04.169562 ns2.elhacker.net postfix/smtpd[1806154]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 <[email protected]>: Relay access denied; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> ... show less	Hacking Web App Attack
🇳🇱 EGP Abuse Dept	2026-06-11 03:34:51 (3 days ago)	Unsolicited connection to port 465	Port Scan Hacking
🇦🇺 rubixstudios	2026-06-11 02:00:03 (3 days ago)	Suspicious SMTP activity detected. Type: Repeated dropped SMTP connections (8 hits).	Email Spam Port Scan
🇳🇱 cybertailor	2026-06-10 14:20:16 (3 days ago)	Jun 10 17:56:51 sysrq smtpd[7844]: d7434c3a6a961ff9 smtp failed-command command="MAIL FROM:<cyber+ge ... show more Jun 10 17:56:51 sysrq smtpd[7844]: d7434c3a6a961ff9 smtp failed-command command="MAIL FROM:<[email protected]> BODY=8BITMIME" result="530 5.5.1 Invalid command: Must issue an AUTH command first" Jun 10 17:57:02 sysrq smtpd[7844]: d7434c3b24937b68 smtp connected address=183.166.83.106 host=<unknown> Jun 10 17:57:05 sysrq smtpd[7844]: d7434c3b24937b68 smtp failed-command command="RCPT TO:<[email protected]>" result="550 Invalid recipient: <[email protected]>" Jun 10 17:57:05 sysrq smtpd[7844]: d7434c3c7a892a62 smtp connected address=183.166.83.106 host=<unknown> Jun 10 17:57:09 sysrq smtpd[7844]: d7434c3c7a892a62 smtp failed-command command="RCPT TO:<[email protected]>" result="550 Invalid recipient: <[email protected]>" ... show less	Brute-Force
🇩🇪 eliottha	2026-06-10 10:38:44 (3 days ago)	Jun 10 12:38:39 server postfix/smtpd[221116]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 55 ... show more Jun 10 12:38:39 server postfix/smtpd[221116]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 Service unavailable; Client host [183.166.83.106] blocked using zen.spamhaus.org; Listed by PBL, see https://check.spamhaus.org/query/ip/183.166.83.106 / Listed by XBL, see https://check.spamhaus.org/query/ip/183.166.83.106 / Listed by CSS, see https://check.spamhaus.org/query/ip/183.166.83.106; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> Jun 10 12:38:41 server postfix/smtpd[221117]: NOQUEUE: reject: RCPT from unknown[183.166.83.106]: 554 5.7.1 Service unavailable; Client host [183.166.83.106] blocked using zen.spamhaus.org; Listed by XBL, see https://check.spamhaus.org/query/ip/183.166.83.106 / Listed by PBL, see https://check.spamhaus.org/query/ip/183.166.83.106 / Listed by CSS, see https://check.spamhaus.org/query/ip/183.166.83.106; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<localhost> Jun 10 12:38:43 server postfix ... show less	Brute-Force Hacking Email Spam
🇮🇹 www.tana.it	2026-06-10 03:33:54 (4 days ago)	SPF failure	Spoofing
🇭🇰 PingMeMaybe	2026-06-10 03:14:18 (4 days ago)	Blocked by UFW on hk [25/tcp] Source port: 42684 TTL: 114 Packet length: 52 TOS: 0x00 This report w ... show more Blocked by UFW on hk [25/tcp] Source port: 42684 TTL: 114 Packet length: 52 TOS: 0x00 This report was generated by: https://github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan Email Spam

Showing 1 to 15 of 53 reports

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