AbuseIPDB » 187.21.171.20

187.21.171.20 was found in our database!

This IP was reported 37 times. Confidence of Abuse is 85%: ?

85%
ISP Claro NXT Telecomunicacoes Ltda
Usage Type Fixed Line ISP
ASN AS28573
Hostname(s) bb15ab14.virtua.com.br
Domain Name claro.com.br
Country ๐Ÿ‡ง๐Ÿ‡ท Brazil
City Ubatuba, Sao Paulo

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

IP Abuse Reports for 187.21.171.20:

This IP address has been reported a total of 37 times from 25 distinct sources. 187.21.171.20 was first reported on , and the most recent report was .

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
๐Ÿ‡ง๐Ÿ‡ท diego
Hacking
๐Ÿ‡ฎ๐Ÿ‡ณ Mr.Singh
NFT blocked 187.21.171.20 on 11-Jun-2026..
Port Scan Brute-Force
๐Ÿ‡จ๐Ÿ‡ฆ design2web.ca
Port Scan
๐Ÿ‡บ๐Ÿ‡ธ anon333
Hacker syslog review 1781022828
Hacking
๐Ÿ‡บ๐Ÿ‡ธ anon333
Hacker syslog review 1780774426
Hacking
๐Ÿ‡ท๐Ÿ‡ด abuse_IP_reporter
Jun 6 15:05:32 server UFW BLOCK SRC=187.21.171.20
Port Scan
๐Ÿ‡จ๐Ÿ‡ฆ polycoda
AutoBlock: ๐Ÿ“ก Port Scan (Non Decay-Based)
Port Scan
๐Ÿ‡บ๐Ÿ‡ธ anon333
Hacker syslog review 1780158816
Hacking
๐Ÿ‡จ๐Ÿ‡ฆ polycoda
๐Ÿฅถ Part of massive botnet scraping campaign that nearly turned into a DDoS on 2025-11-27
DDoS Attack
๐Ÿ‡บ๐Ÿ‡ธ Cyber Crusader
Hundreds of Attempts (at least) to Connect to and Access Firewall Ports
Port Scan Hacking Brute-Force
๐Ÿ‡ฉ๐Ÿ‡ช iNetWorker
firewall-block, port(s): 30428/udp
Port Scan
๐Ÿ‡จ๐Ÿ‡ฆ DRI
Unsolicited UDP traffic on Honeypot, srcport=59315 dstport=2673
Port Scan Hacking
๐Ÿ‡ฉ๐Ÿ‡ช EinfxchFinn
Unauthorized connection attempt to port 63817 from 187.21.171.20
Port Scan
๐Ÿ‡บ๐Ÿ‡ธ Nova Reed
Brute-Force SSH
๐Ÿ‡ฉ๐Ÿ‡ช SMARTNET
Aisuru(Mirai variant) DDoS | Incident ID: e316b406-db2c-400a-bc37-dfbfcc0acc61
DDoS 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 ๐Ÿšฉ

Recently Reported IPs:

๐Ÿ‡ฏ๐Ÿ‡ต 210.156.0.132
๐Ÿ‡ซ๐Ÿ‡ฎ 147.185.133.230
๐Ÿ‡จ๐Ÿ‡ณ 124.88.174.143
๐Ÿ‡บ๐Ÿ‡ธ 66.132.186.238
๐Ÿ‡บ๐Ÿ‡ธ 64.62.197.132
๐Ÿ‡น๐Ÿ‡ผ 59.115.3.39
๐Ÿ‡ณ๐Ÿ‡ฑ 45.148.10.151
๐Ÿ‡ณ๐Ÿ‡ฑ 45.148.10.141
๐Ÿ‡ฉ๐Ÿ‡ช 202.71.141.170
๐Ÿ‡ฎ๐Ÿ‡ณ 182.95.185.74
๐Ÿ‡บ๐Ÿ‡ธ 172.90.128.97
๐Ÿ‡บ๐Ÿ‡ธ 172.56.187.90
๐Ÿ‡จ๐Ÿ‡ณ 123.191.155.137
๐Ÿ‡บ๐Ÿ‡ธ 73.189.83.238
๐Ÿ‡บ๐Ÿ‡ธ 64.62.197.165
๐Ÿ‡ฌ๐Ÿ‡ง 45.67.198.239
๐Ÿ‡บ๐Ÿ‡ธ 209.126.83.166
๐Ÿ‡ฉ๐Ÿ‡ช 193.124.20.247
๐Ÿ‡ฒ๐Ÿ‡ฝ 187.147.24.89
๐Ÿ‡บ๐Ÿ‡ธ 135.232.212.164