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 <<>> 139.72.100.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 23225
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;139.72.100.21.			IN	A

;; AUTHORITY SECTION:
.			540	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2023010200 1800 900 604800 86400

;; Query time: 72 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Mon Jan 02 14:21:59 CST 2023
;; MSG SIZE  rcvd: 106
Host info
Host 21.100.72.139.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.100.72.139.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
112.118.189.7 attack
Honeypot attack, port: 5555, PTR: n112118189007.netvigator.com.
2020-02-18 02:28:41
51.83.138.87 attack
Feb 17 18:40:25 SilenceServices sshd[24774]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.138.87
Feb 17 18:40:27 SilenceServices sshd[24774]: Failed password for invalid user mauro from 51.83.138.87 port 60414 ssh2
Feb 17 18:41:27 SilenceServices sshd[27501]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.83.138.87
2020-02-18 02:15:37
111.205.6.222 attack
Feb 17 19:20:51 srv-ubuntu-dev3 sshd[53721]: Invalid user mecs from 111.205.6.222
Feb 17 19:20:51 srv-ubuntu-dev3 sshd[53721]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.205.6.222
Feb 17 19:20:51 srv-ubuntu-dev3 sshd[53721]: Invalid user mecs from 111.205.6.222
Feb 17 19:20:53 srv-ubuntu-dev3 sshd[53721]: Failed password for invalid user mecs from 111.205.6.222 port 53075 ssh2
Feb 17 19:26:50 srv-ubuntu-dev3 sshd[54236]: Invalid user dot from 111.205.6.222
Feb 17 19:26:50 srv-ubuntu-dev3 sshd[54236]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.205.6.222
Feb 17 19:26:50 srv-ubuntu-dev3 sshd[54236]: Invalid user dot from 111.205.6.222
Feb 17 19:26:52 srv-ubuntu-dev3 sshd[54236]: Failed password for invalid user dot from 111.205.6.222 port 42400 ssh2
Feb 17 19:29:53 srv-ubuntu-dev3 sshd[54482]: Invalid user password from 111.205.6.222
...
2020-02-18 02:30:11
213.32.211.24 attack
MultiHost/MultiPort Probe, Scan, Hack -
2020-02-18 02:29:37
183.81.109.98 attackspam
Attempt to attack host OS, exploiting network vulnerabilities, on 17-02-2020 13:35:14.
2020-02-18 02:49:46
45.95.168.111 attackbots
Feb 17 18:53:38 server2 sshd\[27862\]: User root from 45.95.168.111 not allowed because not listed in AllowUsers
Feb 17 18:53:38 server2 sshd\[27864\]: User root from 45.95.168.111 not allowed because not listed in AllowUsers
Feb 17 18:53:39 server2 sshd\[27866\]: User root from 45.95.168.111 not allowed because not listed in AllowUsers
Feb 17 18:53:39 server2 sshd\[27868\]: User root from 45.95.168.111 not allowed because not listed in AllowUsers
Feb 17 18:53:41 server2 sshd\[27870\]: User root from 45.95.168.111 not allowed because not listed in AllowUsers
Feb 17 18:53:41 server2 sshd\[27871\]: User root from 45.95.168.111 not allowed because not listed in AllowUsers
2020-02-18 02:44:31
37.187.3.53 attackspam
Invalid user upload from 37.187.3.53 port 44741
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.187.3.53
Failed password for invalid user upload from 37.187.3.53 port 44741 ssh2
Invalid user toor from 37.187.3.53 port 59725
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.187.3.53
2020-02-18 02:20:43
49.145.207.160 attack
Feb 17 14:35:21 jane sshd[5345]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.145.207.160 
Feb 17 14:35:23 jane sshd[5345]: Failed password for invalid user admin from 49.145.207.160 port 20451 ssh2
...
2020-02-18 02:42:53
106.12.61.168 attackspam
Feb 17 18:40:52 vmanager6029 sshd\[13989\]: Invalid user rootalias from 106.12.61.168 port 60880
Feb 17 18:40:52 vmanager6029 sshd\[13989\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=106.12.61.168
Feb 17 18:40:53 vmanager6029 sshd\[13989\]: Failed password for invalid user rootalias from 106.12.61.168 port 60880 ssh2
2020-02-18 02:25:39
183.238.53.242 attack
2020-02-17 dovecot_login authenticator failed for \(**REMOVED**\) \[183.238.53.242\]: 535 Incorrect authentication data \(set_id=nologin\)
2020-02-17 dovecot_login authenticator failed for \(**REMOVED**\) \[183.238.53.242\]: 535 Incorrect authentication data \(set_id=webmaster@**REMOVED**\)
2020-02-17 dovecot_login authenticator failed for \(**REMOVED**\) \[183.238.53.242\]: 535 Incorrect authentication data \(set_id=webmaster\)
2020-02-18 02:27:47
103.136.99.237 attackspam
20/2/17@08:35:31: FAIL: Alarm-Telnet address from=103.136.99.237
...
2020-02-18 02:32:47
111.230.241.245 attackbotsspam
Feb 17 12:19:09 mail sshd\[3755\]: Invalid user oracle from 111.230.241.245
Feb 17 12:19:09 mail sshd\[3755\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.230.241.245
...
2020-02-18 02:35:35
117.199.208.240 attackspambots
1581946532 - 02/17/2020 14:35:32 Host: 117.199.208.240/117.199.208.240 Port: 445 TCP Blocked
2020-02-18 02:32:19
37.114.183.179 attack
Unauthorized IMAP connection attempt
2020-02-18 02:46:22
190.37.94.229 attackspam
Attempt to attack host OS, exploiting network vulnerabilities, on 17-02-2020 13:35:14.
2020-02-18 02:48:27

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