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AbuseIPDB » 121.236.236.54

121.236.236.54 was found in our database!

This IP was reported 14 times. Confidence of Abuse is 0%: ?

ISP	CHINANET jiangsu province network
Usage Type	Commercial
ASN	AS140292
Domain Name	chinatelecom.cn
Country	🇨🇳 China
City	Shanghai, Shanghai

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

Report 121.236.236.54

Whois 121.236.236.54

IP Abuse Reports for 121.236.236.54:

This IP address has been reported a total of 14 times from 11 distinct sources. 121.236.236.54 was first reported on May 28th 2025, and the most recent report was 11 months ago.

Old Reports: The most recent abuse report for this IP address is from 11 months ago . It is possible that this IP is no longer involved in abusive activities.

Reporter	IoA Timestamp (UTC)	Comment	Categories
🇨🇿 unhfree.net	2025-07-03 06:39:44 (11 months ago)	Jul 3 08:39:43 canopus postfix/smtpd[3213794]: NOQUEUE: reject: RCPT from unknown[121.236.236.54]: ... show more Jul 3 08:39:43 canopus postfix/smtpd[3213794]: NOQUEUE: reject: RCPT from unknown[121.236.236.54]: 554 5.7.1 <[email protected]>: Recipient address rejected: Maximum 20 messages per 60 minutes limit reached; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<121.236.236.54> Jul 3 08:39:43 canopus postfix/smtpd[3213794]: NOQUEUE: reject: RCPT from unknown[121.236.236.54]: 554 5.7.1 <[email protected]>: Recipient address rejected: Maximum 20 messages per 60 minutes limit reached; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<121.236.236.54> Jul 3 08:39:43 canopus postfix/smtpd[3213794]: NOQUEUE: reject: RCPT from unknown[121.236.236.54]: 554 5.7.1 <[email protected]>: Recipient address rejected: Maximum 20 messages per 60 minutes limit reached; from=<[email protected]> to=<[email protected]> proto=ESMTP helo=<121.236.236.54> Jul 3 08:39:43 canopus postfix/smtpd[3213794]: NOQUEUE: reject: RCPT from unknown[121.236.236.54]: 554 5.7.1 <matthewsdal ... show less	Brute-Force Exploited Host
🇨🇳 ThreatBook.io	2025-05-31 22:59:14 (1 year ago)	ThreatBook Intelligence: vpn_proxy,Spam more details on https://threatbook.io/ip/121.236.236.54	SSH
🇹🇭 Sawasdee	2025-05-30 11:36:06 (1 year ago)	Port Scan ...	Port Scan
🇫🇷 security.rdmc.fr	2025-05-30 07:44:51 (1 year ago)	Port Scan Attack proto:TCP src:55905 dst:23	Port Scan
🇹🇼 kk_it_man	2025-05-30 05:00:09 (1 year ago)	honey catch	Port Scan
🇳🇱 Study Bitcoin 🤗	2025-05-30 02:16:38 (1 year ago)	Port probe to tcp/23 (telnet) [srv132]	Port Scan Hacking
Anonymous	2025-05-30 00:04:10 (1 year ago)	May 29 20:04:09 localhost kernel: [76909491.294364] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91 ... show more May 29 20:04:09 localhost kernel: [76909491.294364] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:00:00:0c:9f:f0:1e:08:00 SRC=121.236.236.54 DST=[mungedIP2] LEN=60 TOS=0x00 PREC=0x00 TTL=44 ID=38738 DF PROTO=TCP SPT=39986 DPT=23 WINDOW=29040 RES=0x00 SYN URGP=0 May 29 20:04:09 localhost kernel: [76909491.294394] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:00:00:0c:9f:f0:1e:08:00 SRC=121.236.236.54 DST=[mungedIP2] LEN=60 TOS=0x00 PREC=0x00 TTL=44 ID=38738 DF PROTO=TCP SPT=39986 DPT=23 SEQ=193810148 ACK=0 WINDOW=29040 RES=0x00 SYN URGP=0 OPT (020405AC0402080A011FD9B60000000001030305) May 29 20:04:10 localhost kernel: [76909492.289273] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:00:00:0c:9f:f0:1e:08:00 SRC=121.236.236.54 DST=[mungedIP2] LEN=60 TOS=0x00 PREC=0x00 TTL=44 ID=38739 DF PROTO=TCP SPT=39986 DPT=23 WINDOW=29040 RES=0x00 SYN URGP=0 May 29 20:04:10 localhost kernel: [76909492.289301] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:00:00:0c:9f:f0:1e:08:0 show less	Port Scan
🇨🇳 ThreatBook.io	2025-05-29 23:05:12 (1 year ago)	ThreatBook Intelligence: vpn_proxy,Spam more details on https://threatbook.io/ip/121.236.236.54	SSH
🇳🇱 Study Bitcoin 🤗	2025-05-28 22:15:59 (1 year ago)	2 port probes: 2x tcp/23 (telnet) [ros]	Port Scan Hacking
🇺🇸 cybsecaoccol	2025-05-28 21:05:13 (1 year ago)	unauthorized connection or malicious port scan attempted on tcp port - corp	Port Scan Hacking
🇳🇱 Study Bitcoin 🤗	2025-05-28 17:00:43 (1 year ago)	Port probe to tcp/23 (telnet) [srv132]	Port Scan Hacking
🇷🇴 Lungu Stefan Gabriel	2025-05-28 12:50:37 (1 year ago)	High number of requests detected from this IP: 1 requests in 1 seconds on port 23. Reason: 1 RPS în ... show more High number of requests detected from this IP: 1 requests in 1 seconds on port 23. Reason: 1 RPS în 1 secunde (depășit pragul burst) pe portul 23 show less	Port Scan Brute-Force IoT Targeted
🇷🇴 abuse_IP_reporter	2025-05-28 12:45:04 (1 year ago)	May 28 15:20:32 server UFW BLOCK SRC=121.236.236.54 DF PROTO=TCP SPT=55774	Port Scan
🇦🇹 webnestify	2025-05-28 04:39:41 (1 year ago)	[Webnestify Honeypot - Europe] Unauthorized connection attempt on port 23.	Port Scan Hacking Brute-Force

Showing 1 to 14 of 14 reports

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