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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.38.54
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 22294
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.38.54.			IN	A

;; AUTHORITY SECTION:
.			328	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022001 1800 900 604800 86400

;; Query time: 83 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Feb 21 05:23:19 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 54.38.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 54.38.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
188.166.216.84 attack
Jul  3 10:09:33 *** sshd[29438]: Invalid user monica from 188.166.216.84
2019-07-03 19:04:55
5.143.134.151 attackspambots
23/tcp
[2019-07-03]1pkt
2019-07-03 19:25:56
83.209.186.35 attackbotsspam
5555/tcp
[2019-07-03]1pkt
2019-07-03 19:22:40
185.220.101.65 attack
Jul  3 05:44:46 localhost sshd\[7074\]: Invalid user admin from 185.220.101.65 port 44988
Jul  3 05:44:46 localhost sshd\[7074\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=185.220.101.65
Jul  3 05:44:48 localhost sshd\[7074\]: Failed password for invalid user admin from 185.220.101.65 port 44988 ssh2
2019-07-03 19:16:08
34.217.114.221 attackspam
User agent spoofing, by Amazon Technologies Inc.
2019-07-03 19:25:32
176.27.230.148 attackbotsspam
Jul  3 04:45:24 vegas sshd[31075]: Did not receive identification string from 176.27.230.148
Jul  3 05:04:30 vegas sshd[2095]: reveeclipse mapping checking getaddrinfo for b01be694.bb.sky.com [176.27.230.148] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul  3 05:04:30 vegas sshd[2095]: Invalid user admin from 176.27.230.148
Jul  3 05:04:30 vegas sshd[2095]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=176.27.230.148
Jul  3 05:04:32 vegas sshd[2095]: Failed password for invalid user admin from 176.27.230.148 port 52696 ssh2
Jul  3 05:09:57 vegas sshd[3277]: reveeclipse mapping checking getaddrinfo for b01be694.bb.sky.com [176.27.230.148] failed - POSSIBLE BREAK-IN ATTEMPT!
Jul  3 05:09:57 vegas sshd[3277]: Invalid user ubuntu from 176.27.230.148
Jul  3 05:09:57 vegas sshd[3277]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=176.27.230.148

........
-----------------------------------------------
https://www.blocklist.de/en/view.html?i
2019-07-03 19:39:00
180.249.180.85 attackspambots
445/tcp
[2019-07-03]1pkt
2019-07-03 18:59:17
192.160.102.165 attack
SSH login attempts brute force.
2019-07-03 19:34:36
37.49.217.248 attackspambots
[portscan] tcp/23 [TELNET]
*(RWIN=2242)(07030936)
2019-07-03 19:10:33
113.178.33.43 attackspambots
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-02 03:31:40,528 INFO [shellcode_manager] (113.178.33.43) no match, writing hexdump (baa84b3d4f080b81f3bcf2cfbcfe2cd5 :2449062) - MS17010 (EternalBlue)
2019-07-03 19:17:15
183.89.107.211 attackbots
445/tcp
[2019-07-03]1pkt
2019-07-03 19:28:44
51.254.39.23 attack
Jul  3 06:25:29 ns37 sshd[12942]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.254.39.23
2019-07-03 19:13:09
43.228.126.182 attackbots
Jul  3 06:55:21 vps691689 sshd[29917]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.228.126.182
Jul  3 06:55:23 vps691689 sshd[29917]: Failed password for invalid user tomberli from 43.228.126.182 port 43382 ssh2
Jul  3 06:57:51 vps691689 sshd[29930]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=43.228.126.182
...
2019-07-03 19:06:42
202.191.127.90 attackspambots
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-02 03:31:23,021 INFO [shellcode_manager] (202.191.127.90) no match, writing hexdump (64f371daefceb631a4587ecf118f6787 :2204091) - MS17010 (EternalBlue)
2019-07-03 19:41:12
106.75.60.142 attackbots
SSH Brute-Force attacks
2019-07-03 19:30:42

Recently Reported IPs

104.21.38.63 104.21.38.37 104.21.38.45 104.21.38.65
104.21.38.46 104.21.38.50 104.21.38.71 104.21.38.84
104.21.39.45 104.21.39.54 104.21.4.167 104.21.41.129
104.21.42.105 104.21.41.118 104.21.42.189 104.21.42.181
104.21.42.185 104.21.42.190 104.21.42.178 104.21.42.213