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:
IP Type Details Datetime
104.21.75.2 spam
Spammer blacklist in https://www.projecthoneypot.org/ip_104.21.75.2 https://multirbl.valli.org/lookup/104.21.75.2.html
2022-12-29 00:00:44
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 104.21.75.9
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 54820
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.75.9.			IN	A

;; AUTHORITY SECTION:
.			487	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021701 1800 900 604800 86400

;; Query time: 16 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:54:52 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 9.75.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 9.75.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
181.48.134.66 attack
Sep  9 19:07:30 dev0-dcde-rnet sshd[12030]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.48.134.66
Sep  9 19:07:32 dev0-dcde-rnet sshd[12030]: Failed password for invalid user csgo-server from 181.48.134.66 port 42156 ssh2
Sep  9 19:15:16 dev0-dcde-rnet sshd[12142]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=181.48.134.66
2019-09-10 03:13:30
141.98.9.5 attackbots
Sep  9 20:48:19 relay postfix/smtpd\[8355\]: warning: unknown\[141.98.9.5\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  9 20:48:48 relay postfix/smtpd\[17563\]: warning: unknown\[141.98.9.5\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  9 20:49:06 relay postfix/smtpd\[8354\]: warning: unknown\[141.98.9.5\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  9 20:49:35 relay postfix/smtpd\[17563\]: warning: unknown\[141.98.9.5\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
Sep  9 20:49:54 relay postfix/smtpd\[13366\]: warning: unknown\[141.98.9.5\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6
...
2019-09-10 02:50:22
154.117.159.218 attackbots
2019-09-09 10:01:58 H=(lovepets.it) [154.117.159.218]:53856 I=[192.147.25.65]:25 F= rejected RCPT : RBL: found in thrukfz5b56tq6xao6odgdyjrq.zen.dq.spamhaus.net (127.0.0.4, 127.0.0.3) (https://www.spamhaus.org/sbl/query/SBLCSS)
2019-09-09 10:01:59 H=(lovepets.it) [154.117.159.218]:53856 I=[192.147.25.65]:25 F= rejected RCPT : RBL: found in thrukfz5b56tq6xao6odgdyjrq.zen.dq.spamhaus.net (127.0.0.3, 127.0.0.4) (https://www.spamhaus.org/sbl/query/SBLCSS)
2019-09-09 10:02:00 H=(lovepets.it) [154.117.159.218]:53856 I=[192.147.25.65]:25 F= rejected RCPT : RBL: found in thrukfz5b56tq6xao6odgdyjrq.zen.dq.spamhaus.net (127.0.0.4, 127.0.0.3) (https://www.spamhaus.org/sbl/query/SBLCSS)
...
2019-09-10 03:07:20
212.156.17.218 attack
" "
2019-09-10 03:04:44
122.172.70.244 attackspambots
(sshd) Failed SSH login from 122.172.70.244 (abts-kk-dynamic-244.70.172.122.airtelbroadband.in): 5 in the last 3600 secs
2019-09-10 03:23:34
218.98.40.149 attack
SSH Bruteforce attempt
2019-09-10 02:43:36
124.16.4.21 attackspam
Sep  9 20:30:39 lnxded63 sshd[28478]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=124.16.4.21
2019-09-10 02:51:21
218.92.0.133 attack
$f2bV_matches
2019-09-10 03:19:02
204.48.31.143 attack
Sep  9 14:36:44 plusreed sshd[6231]: Invalid user teran from 204.48.31.143
...
2019-09-10 02:45:58
37.195.50.41 attack
Sep  9 19:12:22 mail sshd\[5662\]: Invalid user ansibleuser from 37.195.50.41
Sep  9 19:12:22 mail sshd\[5662\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=37.195.50.41
Sep  9 19:12:25 mail sshd\[5662\]: Failed password for invalid user ansibleuser from 37.195.50.41 port 43904 ssh2
...
2019-09-10 03:19:34
222.186.42.15 attackbots
Sep  9 08:36:41 tdfoods sshd\[13586\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.15  user=root
Sep  9 08:36:43 tdfoods sshd\[13586\]: Failed password for root from 222.186.42.15 port 44208 ssh2
Sep  9 08:36:48 tdfoods sshd\[13593\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.42.15  user=root
Sep  9 08:36:51 tdfoods sshd\[13593\]: Failed password for root from 222.186.42.15 port 45554 ssh2
Sep  9 08:36:53 tdfoods sshd\[13593\]: Failed password for root from 222.186.42.15 port 45554 ssh2
2019-09-10 02:43:12
159.65.198.48 attackbotsspam
(sshd) Failed SSH login from 159.65.198.48 (-): 5 in the last 3600 secs
2019-09-10 03:26:48
31.171.0.55 attackbotsspam
Sep  9 17:39:43 master sshd[27447]: Failed password for invalid user admin from 31.171.0.55 port 38202 ssh2
2019-09-10 03:03:43
106.13.117.241 attackbotsspam
fail2ban
2019-09-10 02:55:32
139.59.23.68 attackbots
Sep  9 18:39:49 MK-Soft-VM4 sshd\[12962\]: Invalid user sammy from 139.59.23.68 port 37004
Sep  9 18:39:49 MK-Soft-VM4 sshd\[12962\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=139.59.23.68
Sep  9 18:39:52 MK-Soft-VM4 sshd\[12962\]: Failed password for invalid user sammy from 139.59.23.68 port 37004 ssh2
...
2019-09-10 03:08:13

Recently Reported IPs

104.21.75.89 104.21.75.85 104.21.75.88 104.21.75.91
104.21.75.93 104.21.75.92 104.21.75.97 104.21.75.94
104.21.75.95 104.21.75.99 104.21.76.10 104.21.76.100
104.21.76.101 104.21.76.107 104.21.76.104 104.21.76.108
104.21.76.105 104.21.76.11 104.21.76.103 104.21.76.110