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: United States

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 <<>> 104.21.16.137
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16418
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.16.137.			IN	A

;; AUTHORITY SECTION:
.			218	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021700 1800 900 604800 86400

;; Query time: 144 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:12:23 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 137.16.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 137.16.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
139.59.187.31 attack
Unauthorized connection attempt detected from IP address 139.59.187.31 to port 2220 [J]
2020-01-27 19:51:52
94.191.52.53 attack
$f2bV_matches
2020-01-27 19:56:26
78.187.28.42 attackbots
Unauthorised access (Jan 27) SRC=78.187.28.42 LEN=52 TTL=117 ID=15575 DF TCP DPT=445 WINDOW=8192 SYN
2020-01-27 20:01:39
49.149.103.72 attackbots
Honeypot attack, port: 445, PTR: dsl.49.149.103.72.pldt.net.
2020-01-27 19:18:40
45.55.190.106 attack
Unauthorized connection attempt detected from IP address 45.55.190.106 to port 2220 [J]
2020-01-27 19:22:28
178.238.198.97 attackbotsspam
Honeypot attack, port: 445, PTR: PTR record not found
2020-01-27 19:30:23
213.27.193.35 attackspambots
Honeypot attack, port: 445, PTR: PTR record not found
2020-01-27 19:16:41
111.93.246.171 attackbots
Jan 27 11:26:24 hcbbdb sshd\[31118\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.93.246.171  user=root
Jan 27 11:26:27 hcbbdb sshd\[31118\]: Failed password for root from 111.93.246.171 port 41316 ssh2
Jan 27 11:32:26 hcbbdb sshd\[31848\]: Invalid user administrator from 111.93.246.171
Jan 27 11:32:26 hcbbdb sshd\[31848\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.93.246.171
Jan 27 11:32:28 hcbbdb sshd\[31848\]: Failed password for invalid user administrator from 111.93.246.171 port 47514 ssh2
2020-01-27 19:39:50
121.200.54.2 attack
Honeypot attack, port: 445, PTR: psnacet.edu.in.
2020-01-27 19:23:10
90.57.74.91 attackspambots
Jan 27 10:56:05 [snip] sshd[8784]: Invalid user lf from 90.57.74.91 port 23082
Jan 27 10:56:05 [snip] sshd[8784]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=90.57.74.91
Jan 27 10:56:07 [snip] sshd[8784]: Failed password for invalid user lf from 90.57.74.91 port 23082 ssh2[...]
2020-01-27 19:38:45
49.232.158.34 attack
Jan 27 12:45:41 OPSO sshd\[25928\]: Invalid user milani from 49.232.158.34 port 60464
Jan 27 12:45:41 OPSO sshd\[25928\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.232.158.34
Jan 27 12:45:43 OPSO sshd\[25928\]: Failed password for invalid user milani from 49.232.158.34 port 60464 ssh2
Jan 27 12:48:34 OPSO sshd\[26391\]: Invalid user gitlab from 49.232.158.34 port 54146
Jan 27 12:48:34 OPSO sshd\[26391\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.232.158.34
2020-01-27 20:03:48
5.170.68.136 attack
Honeypot attack, port: 445, PTR: PTR record not found
2020-01-27 19:19:56
196.28.226.146 attack
3389BruteforceFW22
2020-01-27 19:29:25
200.196.206.0 attackspam
Honeypot attack, port: 445, PTR: PTR record not found
2020-01-27 19:26:14
112.85.42.176 attackbots
Jan 27 12:52:02 MK-Soft-Root1 sshd[4167]: Failed password for root from 112.85.42.176 port 49393 ssh2
Jan 27 12:52:06 MK-Soft-Root1 sshd[4167]: Failed password for root from 112.85.42.176 port 49393 ssh2
...
2020-01-27 20:00:53

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