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:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.36.19
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 55035
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.36.19.			IN	A

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

;; Query time: 64 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:26:06 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 19.36.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 19.36.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
139.192.86.126 attackspam
2019-09-17 04:35:30 1iA3Kx-0007Dm-9k SMTP connection from \(\[139.192.86.126\]\) \[139.192.86.126\]:10903 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-09-17 04:35:39 1iA3L6-0007E9-Hl SMTP connection from \(\[139.192.86.126\]\) \[139.192.86.126\]:10957 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-09-17 04:35:46 1iA3LD-0007EK-TO SMTP connection from \(\[139.192.86.126\]\) \[139.192.86.126\]:10985 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-02-05 01:06:00
138.219.16.1 attackbotsspam
2019-03-11 12:13:15 1h3Irq-0005zO-FG SMTP connection from \(\[138.219.16.1\]\) \[138.219.16.1\]:22737 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-03-11 12:13:32 1h3Is6-0005zk-RL SMTP connection from \(\[138.219.16.1\]\) \[138.219.16.1\]:22982 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-03-11 12:13:43 1h3IsI-00060H-CI SMTP connection from \(\[138.219.16.1\]\) \[138.219.16.1\]:23130 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-02-05 01:20:29
69.245.220.97 attackbotsspam
Feb  4 15:57:22 srv-ubuntu-dev3 sshd[29301]: Invalid user soyinka from 69.245.220.97
Feb  4 15:57:22 srv-ubuntu-dev3 sshd[29301]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=69.245.220.97
Feb  4 15:57:22 srv-ubuntu-dev3 sshd[29301]: Invalid user soyinka from 69.245.220.97
Feb  4 15:57:24 srv-ubuntu-dev3 sshd[29301]: Failed password for invalid user soyinka from 69.245.220.97 port 47982 ssh2
Feb  4 16:00:28 srv-ubuntu-dev3 sshd[29603]: Invalid user testbed from 69.245.220.97
Feb  4 16:00:28 srv-ubuntu-dev3 sshd[29603]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=69.245.220.97
Feb  4 16:00:28 srv-ubuntu-dev3 sshd[29603]: Invalid user testbed from 69.245.220.97
Feb  4 16:00:30 srv-ubuntu-dev3 sshd[29603]: Failed password for invalid user testbed from 69.245.220.97 port 49610 ssh2
Feb  4 16:03:31 srv-ubuntu-dev3 sshd[29867]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruse
...
2020-02-05 01:07:33
138.94.254.179 attackbots
2020-01-26 10:27:00 1iveC1-0007Gu-As SMTP connection from \(\[138.94.254.179\]\) \[138.94.254.179\]:38171 I=\[193.107.88.166\]:25 closed by DROP in ACL
2020-01-26 10:27:36 1iveCb-0007IH-AW SMTP connection from \(\[138.94.254.179\]\) \[138.94.254.179\]:38355 I=\[193.107.88.166\]:25 closed by DROP in ACL
2020-01-26 10:27:57 1iveCv-0007Id-S8 SMTP connection from \(\[138.94.254.179\]\) \[138.94.254.179\]:38464 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-02-05 01:12:44
139.192.234.141 attackbots
2019-07-08 15:58:32 1hkUA2-0001uf-VK SMTP connection from \(\[139.192.234.141\]\) \[139.192.234.141\]:24856 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-08 15:58:37 1hkUA8-0001ui-RE SMTP connection from \(\[139.192.234.141\]\) \[139.192.234.141\]:24914 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-08 15:58:44 1hkUAE-0001up-66 SMTP connection from \(\[139.192.234.141\]\) \[139.192.234.141\]:24952 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-02-05 01:07:20
121.149.221.186 attackspambots
Feb  4 14:50:19 grey postfix/smtpd\[26854\]: NOQUEUE: reject: RCPT from unknown\[121.149.221.186\]: 554 5.7.1 Service unavailable\; Client host \[121.149.221.186\] blocked using dul.dnsbl.sorbs.net\; Dynamic IP Addresses See: http://www.sorbs.net/lookup.shtml\?121.149.221.186\; from=\ to=\ proto=ESMTP helo=\<\[121.149.221.186\]\>
...
2020-02-05 01:33:22
139.180.212.134 attackbotsspam
2020-01-18 01:08:58 SMTP protocol synchronization error \(input sent without waiting for greeting\): rejected connection from H=\[139.180.212.134\]:50978 I=\[193.107.88.166\]:25 input="CONNECT 104.25.136.22:80 HTTP/1."
2020-01-18 01:08:58 SMTP protocol synchronization error \(input sent without waiting for greeting\): rejected connection from H=\[139.180.212.134\]:50987 I=\[193.107.88.166\]:25 input="\004\001"
2020-01-18 01:08:58 SMTP protocol synchronization error \(input sent without waiting for greeting\): rejected connection from H=\[139.180.212.134\]:50994 I=\[193.107.88.166\]:25 input="\005\001"
2020-01-18 01:08:59 SMTP protocol synchronization error \(input sent without waiting for greeting\): rejected connection from H=\[139.180.212.134\]:50998 I=\[193.107.88.166\]:25 input="GET http://www.stopforumspam.com"
2020-01-18 01:08:59 SMTP protocol synchronization error \(input sent without waiting for greeting\): rejected connection from H=\[139.180.212.134\]:51009 I=\[193.107.88.166
...
2020-02-05 01:08:40
162.243.10.55 attack
fraudulent SSH attempt
2020-02-05 00:56:10
80.150.95.170 attackspambots
Feb  4 12:29:55 plusreed sshd[6206]: Invalid user gogs from 80.150.95.170
...
2020-02-05 01:36:20
135.0.89.100 attackbotsspam
2019-07-07 14:18:14 1hk67S-0007yC-8y SMTP connection from \(\[135.0.89.100\]\) \[135.0.89.100\]:45049 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-07 14:18:33 1hk67l-0007yO-Ch SMTP connection from \(\[135.0.89.100\]\) \[135.0.89.100\]:45190 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-07-07 14:18:43 1hk67u-0007yY-Cy SMTP connection from \(\[135.0.89.100\]\) \[135.0.89.100\]:45265 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-02-05 01:32:49
139.193.70.221 attack
2019-03-11 09:45:14 H=\(fm-dyn-139-193-70-221.fast.net.id\) \[139.193.70.221\]:19724 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2019-03-11 09:45:23 H=\(fm-dyn-139-193-70-221.fast.net.id\) \[139.193.70.221\]:19815 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
2019-03-11 09:45:31 H=\(fm-dyn-139-193-70-221.fast.net.id\) \[139.193.70.221\]:19893 I=\[193.107.88.166\]:25 F=\ rejected RCPT \: Sender verify failed
...
2020-02-05 01:01:15
139.218.202.80 attack
Feb  4 16:13:59 grey postfix/smtpd\[11589\]: NOQUEUE: reject: RCPT from 139-218-202-80.sta.dodo.net.au\[139.218.202.80\]: 554 5.7.1 Service unavailable\; Client host \[139.218.202.80\] blocked using cbl.abuseat.org\; Blocked - see http://www.abuseat.org/lookup.cgi\?ip=139.218.202.80\; from=\ to=\ proto=ESMTP helo=\<80.202.218.139.sta.dodo.net.au\>
...
2020-02-05 00:51:47
134.73.7.253 attackbotsspam
2019-04-09 05:28:53 1hDhRN-0007mN-HP SMTP connection from plants.sandyfadadu.com \(plants.parsanezhad.icu\) \[134.73.7.253\]:40051 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-04-09 05:31:07 1hDhTX-0007qx-BT SMTP connection from plants.sandyfadadu.com \(plants.parsanezhad.icu\) \[134.73.7.253\]:41977 I=\[193.107.88.166\]:25 closed by DROP in ACL
2019-04-09 05:31:35 1hDhTy-0007rP-T9 SMTP connection from plants.sandyfadadu.com \(plants.parsanezhad.icu\) \[134.73.7.253\]:52726 I=\[193.107.88.166\]:25 closed by DROP in ACL
...
2020-02-05 01:35:41
198.108.66.155 attackbotsspam
MultiHost/MultiPort Probe, Scan, Hack -
2020-02-05 01:14:07
46.218.85.69 attackspam
Unauthorized connection attempt detected from IP address 46.218.85.69 to port 2220 [J]
2020-02-05 01:35:09

Recently Reported IPs

104.21.36.197 104.21.36.198 104.21.69.196 104.21.36.209
104.21.36.210 104.21.36.214 104.21.36.219 104.21.36.233
104.21.36.237 104.21.36.238 104.21.36.24 104.21.36.244
104.21.36.236 104.21.36.241 104.21.36.249 104.21.69.200
104.21.36.251 104.21.36.27 104.21.36.28 104.21.36.252