Must be a valid IPv4 or IPv6 ip address, e.g. 127.0.0.1 or 2001:DB8:0:0:8:800:200C:417A
Basic Info

City: unknown

Region: unknown

Country: None

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
No discussion about this IP yet. Click above link to make one.
Comments on same subnet:
No discussion about this subnet yet..
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.16.55
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 34777
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.55.			IN	A

;; AUTHORITY SECTION:
.			197	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 65 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:29:40 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 55.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 55.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
175.203.95.49 attackbotsspam
2019-07-10T08:59:32.022955abusebot-3.cloudsearch.cf sshd\[16965\]: Invalid user burrelli from 175.203.95.49 port 44888
2019-07-10 17:09:43
180.154.40.206 attackspam
MultiHost/MultiPort Probe, Scan, Hack -
2019-07-10 17:24:01
138.68.146.186 attackbotsspam
2019-07-10T08:59:25.648223abusebot.cloudsearch.cf sshd\[32025\]: Invalid user dovecot from 138.68.146.186 port 60906
2019-07-10 17:10:40
61.19.23.30 attackspam
Unauthorized connection attempt from IP address 61.19.23.30 on Port 445(SMB)
2019-07-10 17:04:02
129.150.112.159 attackbots
Jul 10 11:16:37 [host] sshd[3530]: Invalid user aksel from 129.150.112.159
Jul 10 11:16:37 [host] sshd[3530]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=129.150.112.159
Jul 10 11:16:39 [host] sshd[3530]: Failed password for invalid user aksel from 129.150.112.159 port 40055 ssh2
2019-07-10 17:28:35
209.97.168.98 attackbotsspam
Invalid user tiago from 209.97.168.98 port 45366
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.97.168.98
Failed password for invalid user tiago from 209.97.168.98 port 45366 ssh2
Invalid user spam from 209.97.168.98 port 36850
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=209.97.168.98
2019-07-10 17:19:33
85.209.0.115 attack
Port scan on 3 port(s): 31159 41096 48220
2019-07-10 17:02:57
60.51.30.140 attack
Virus on IP !
2019-07-10 17:12:57
223.214.194.114 attack
Automatic report
2019-07-10 17:27:16
93.171.33.196 attackspam
Jul 10 10:58:17 dev sshd\[17775\]: Invalid user ashok from 93.171.33.196 port 47143
Jul 10 10:58:17 dev sshd\[17775\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=93.171.33.196
...
2019-07-10 17:32:05
202.40.186.70 attackspambots
proto=tcp  .  spt=40712  .  dpt=25  .     (listed on Blocklist de  Jul 09)     (21)
2019-07-10 16:49:01
95.182.64.41 attackspam
proto=tcp  .  spt=53685  .  dpt=25  .     (listed on Blocklist de  Jul 09)     (19)
2019-07-10 16:52:50
83.11.58.222 attackbotsspam
Caught in portsentry honeypot
2019-07-10 17:41:12
202.39.9.37 attack
TCP port 445 (SMB) attempt blocked by firewall. [2019-07-10 10:57:56]
2019-07-10 17:14:16
185.176.27.42 attackbotsspam
" "
2019-07-10 17:08:49

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