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 <<>> 104.21.75.138
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 21253
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.75.138.			IN	A

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

;; Query time: 57 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:54:00 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 138.75.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 138.75.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
78.220.13.56 attackspam
Seq 2995002506
2019-12-07 03:47:47
54.37.155.165 attackbots
Dec  6 17:57:54 MK-Soft-VM7 sshd[19959]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=54.37.155.165 
Dec  6 17:57:56 MK-Soft-VM7 sshd[19959]: Failed password for invalid user javets from 54.37.155.165 port 32844 ssh2
...
2019-12-07 03:53:56
51.77.194.241 attackspam
Dec  6 09:41:05 php1 sshd\[13920\]: Invalid user stolpe from 51.77.194.241
Dec  6 09:41:05 php1 sshd\[13920\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.194.241
Dec  6 09:41:06 php1 sshd\[13920\]: Failed password for invalid user stolpe from 51.77.194.241 port 38292 ssh2
Dec  6 09:46:22 php1 sshd\[14417\]: Invalid user sanusi from 51.77.194.241
Dec  6 09:46:22 php1 sshd\[14417\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.77.194.241
2019-12-07 03:50:42
222.186.175.140 attackbotsspam
Dec  6 17:10:30 firewall sshd[18236]: Failed password for root from 222.186.175.140 port 26978 ssh2
Dec  6 17:10:43 firewall sshd[18236]: error: maximum authentication attempts exceeded for root from 222.186.175.140 port 26978 ssh2 [preauth]
Dec  6 17:10:43 firewall sshd[18236]: Disconnecting: Too many authentication failures [preauth]
...
2019-12-07 04:18:04
187.108.207.43 attackspam
Dec  7 00:34:36 gw1 sshd[8021]: Failed password for root from 187.108.207.43 port 40091 ssh2
Dec  7 00:41:24 gw1 sshd[8444]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=187.108.207.43
...
2019-12-07 03:56:22
49.88.112.75 attackspambots
Dec  6 20:56:35 vps666546 sshd\[22339\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.75  user=root
Dec  6 20:56:36 vps666546 sshd\[22339\]: Failed password for root from 49.88.112.75 port 36040 ssh2
Dec  6 20:56:39 vps666546 sshd\[22339\]: Failed password for root from 49.88.112.75 port 36040 ssh2
Dec  6 20:56:41 vps666546 sshd\[22339\]: Failed password for root from 49.88.112.75 port 36040 ssh2
Dec  6 20:57:36 vps666546 sshd\[22404\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.88.112.75  user=root
...
2019-12-07 03:59:54
46.38.144.17 attackbots
Postfix Brute-Force reported by Fail2Ban
2019-12-07 04:21:11
72.11.150.82 attackspambots
(imapd) Failed IMAP login from 72.11.150.82 (US/United States/unassigned.quadranet.com): 1 in the last 3600 secs
2019-12-07 03:52:47
197.159.12.198 attack
Unauthorized connection attempt from IP address 197.159.12.198 on Port 445(SMB)
2019-12-07 04:08:08
200.105.183.118 attackbotsspam
2019-12-06T19:58:07.993135abusebot-6.cloudsearch.cf sshd\[7556\]: Invalid user Asd12 from 200.105.183.118 port 64769
2019-12-07 04:12:38
123.31.32.150 attackspam
Dec  6 20:45:54 localhost sshd\[1376\]: Invalid user saadiah from 123.31.32.150 port 34250
Dec  6 20:45:54 localhost sshd\[1376\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.31.32.150
Dec  6 20:45:57 localhost sshd\[1376\]: Failed password for invalid user saadiah from 123.31.32.150 port 34250 ssh2
2019-12-07 04:05:32
113.237.118.187 attackspambots
Seq 2995002506
2019-12-07 03:46:23
180.150.177.120 attackspambots
2019-12-06T09:39:11.462782ns547587 sshd\[915\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.150.177.120  user=root
2019-12-06T09:39:13.303283ns547587 sshd\[915\]: Failed password for root from 180.150.177.120 port 52966 ssh2
2019-12-06T09:46:44.912378ns547587 sshd\[11346\]: Invalid user kabincha from 180.150.177.120 port 53923
2019-12-06T09:46:44.917856ns547587 sshd\[11346\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=180.150.177.120
...
2019-12-07 04:19:32
104.175.32.206 attackbotsspam
Dec  6 09:43:59 php1 sshd\[23759\]: Invalid user operator from 104.175.32.206
Dec  6 09:43:59 php1 sshd\[23759\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=cpe-104-175-32-206.socal.res.rr.com
Dec  6 09:44:02 php1 sshd\[23759\]: Failed password for invalid user operator from 104.175.32.206 port 51822 ssh2
Dec  6 09:49:24 php1 sshd\[24507\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=cpe-104-175-32-206.socal.res.rr.com  user=root
Dec  6 09:49:26 php1 sshd\[24507\]: Failed password for root from 104.175.32.206 port 32812 ssh2
2019-12-07 03:54:47
51.75.52.127 attack
12/06/2019-20:09:50.776751 51.75.52.127 Protocol: 6 ET CINS Active Threat Intelligence Poor Reputation IP group 52
2019-12-07 04:19:55

Recently Reported IPs

104.21.75.147 104.21.75.143 104.21.75.144 104.21.75.148
104.21.75.149 104.21.75.15 104.21.75.146 104.21.75.152
104.21.75.151 104.21.75.156 104.21.75.160 104.21.75.154
104.21.75.164 104.21.75.168 104.21.75.165 104.21.75.166
104.21.75.169 104.21.75.161 104.21.75.167 104.21.75.159