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AbuseIPDB » 121.153.81.131

121.153.81.131 was found in our database!

This IP was reported 29 times. Confidence of Abuse is 83%: ?

83%

ISP	Korea Telecom
Usage Type	Fixed Line ISP
ASN	AS4766
Domain Name	kt.com
Country	🇰🇷 Korea (the Republic of)
City	Buyeo, Chungcheongnam-do

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

Report 121.153.81.131

Whois 121.153.81.131

IP Abuse Reports for 121.153.81.131:

This IP address has been reported a total of 29 times from 14 distinct sources. 121.153.81.131 was first reported on June 30th 2026, and the most recent report was 19 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
Anonymous	2026-07-08 11:11:33 (19 minutes ago)	Blocked by UFW (47 on ) Source port: TTL: 48 Packet length: 52 TOS: 0x14 This report (for 121.153. ... show more Blocked by UFW (47 on ) Source port: TTL: 48 Packet length: 52 TOS: 0x14 This report (for 121.153.81.131) was generated by: https://github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan
🇩🇪 celestialcity	2026-07-07 23:11:34 (12 hours ago)	Blocked by UFW on celestialcityeu [null/47] \| SPT: null \| TTL: 55 \| LEN: 52 \| TOS: 0x00 • Reported b ... show more Blocked by UFW on celestialcityeu [null/47] \| SPT: null \| TTL: 55 \| LEN: 52 \| TOS: 0x00 • Reported by: github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan
🇺🇸 Josh S.	2026-07-07 13:39:18 (21 hours ago)	Blocked by UFW on Mailcow [null/47] Source port: N/A TTL: 48 Packet length: 52 TOS: 0x00 If this wa ... show more Blocked by UFW on Mailcow [null/47] Source port: N/A TTL: 48 Packet length: 52 TOS: 0x00 If this was a mistake contact me: [email protected] show less	Port Scan
🇩🇪 centurion	2026-07-06 22:48:13 (1 day ago)	Blocked by UFW on ns02 [N/A/47] Source port: N/A TTL: 54 Packet length: 52 TOS: 0x00 This report wa ... show more Blocked by UFW on ns02 [N/A/47] Source port: N/A TTL: 54 Packet length: 52 TOS: 0x00 This report was generated by: https://github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan
🇺🇸 Josh S.	2026-07-06 20:06:25 (1 day ago)	Blocked by UFW on Mailcow [null/47] Source port: N/A TTL: 45 Packet length: 52 TOS: 0x00 If this wa ... show more Blocked by UFW on Mailcow [null/47] Source port: N/A TTL: 45 Packet length: 52 TOS: 0x00 If this was a mistake contact me: [email protected] show less	Port Scan
🇬🇧 sonot	2026-07-06 19:04:07 (1 day ago)	Blocked by UFW on tunneluk01 [null/47] \| SPT: null \| TTL: 52 \| LEN: 52 \| TOS: 0x00 • Reported by: gi ... show more Blocked by UFW on tunneluk01 [null/47] \| SPT: null \| TTL: 52 \| LEN: 52 \| TOS: 0x00 • Reported by: github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan
🇩🇪 celestialcity	2026-07-06 18:11:43 (1 day ago)	Blocked by UFW on celestialcityeu [null/47] \| SPT: null \| TTL: 55 \| LEN: 52 \| TOS: 0x00 • Reported b ... show more Blocked by UFW on celestialcityeu [null/47] \| SPT: null \| TTL: 55 \| LEN: 52 \| TOS: 0x00 • Reported by: github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan
Anonymous	2026-07-06 18:04:28 (1 day ago)	Jul 6 04:43:31 localhost kernel: [111672660.862243] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:9 ... show more Jul 6 04:43:31 localhost kernel: [111672660.862243] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:00:00:0c:9f:f0:1e:08:00 SRC=121.153.81.131 DST=[mungedIP2] LEN=52 TOS=0x00 PREC=0x40 TTL=48 ID=36626 DF PROTO=47 Jul 6 04:43:31 localhost kernel: [111672660.862250] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:00:00:0c:9f:f0:1e:08:00 SRC=121.153.81.131 DST=[mungedIP2] LEN=52 TOS=0x00 PREC=0x40 TTL=48 ID=36626 DF PROTO=47 Jul 6 14:04:27 localhost kernel: [111706316.110332] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:00:00:0c:9f:f0:1e:08:00 SRC=121.153.81.131 DST=[mungedIP2] LEN=52 TOS=0x00 PREC=0x40 TTL=45 ID=9810 DF PROTO=47 Jul 6 14:04:27 localhost kernel: [111706316.110371] iptables_INPUT_denied: IN=eth0 OUT= MAC=f2:3c:91:84:83:95:00:00:0c:9f:f0:1e:08:00 SRC=121.153.81.131 DST=[mungedIP2] LEN=52 TOS=0x00 PREC=0x40 TTL=45 ID=9810 DF PROTO=47 show less	Port Scan
🇹🇭 Sawasdee	2026-07-05 14:06:07 (2 days ago)	Port Scan ...	Port Scan
🇩🇪 centurion	2026-07-05 12:44:54 (2 days ago)	Blocked by UFW on ns02 [N/A/47] Source port: N/A TTL: 54 Packet length: 52 TOS: 0x00 This report wa ... show more Blocked by UFW on ns02 [N/A/47] Source port: N/A TTL: 54 Packet length: 52 TOS: 0x00 This report was generated by: https://github.com/sefinek/UFW-AbuseIPDB-Reporter show less	Port Scan
🇳🇱 VMHeaven.io	2026-07-05 12:32:39 (2 days ago)	Blocked by UFW [null/47] Source port: N/A TTL: 49 Packet length: 52	Port Scan
🇫🇷 evvsk	2026-07-05 00:11:07 (3 days ago)	null/47	Port Scan
🇺🇸 Josh S.	2026-07-04 19:52:00 (3 days ago)	Blocked by UFW on Mailcow [null/47] Source port: N/A TTL: 48 Packet length: 52 TOS: 0x00 If this wa ... show more Blocked by UFW on Mailcow [null/47] Source port: N/A TTL: 48 Packet length: 52 TOS: 0x00 If this was a mistake contact me: [email protected] show less	Port Scan
🇬🇧 Nov	2026-07-04 18:41:05 (3 days ago)	Unauthorized access attempt (proto 47)	Port Scan
🇳🇱 VMHeaven.io	2026-07-03 17:36:45 (4 days ago)	Blocked by UFW [null/47] Source port: N/A TTL: 49 Packet length: 52	Port Scan

Showing 1 to 15 of 29 reports

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