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 <<>> 104.21.72.135
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 34762
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.72.135.			IN	A

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

;; Query time: 14 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:50:30 CST 2022
;; MSG SIZE  rcvd: 106
Host info
Host 135.72.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 135.72.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
59.89.59.226 attack
Port scan: Attack repeated for 24 hours
2020-07-31 01:35:24
122.202.48.251 attack
$f2bV_matches
2020-07-31 01:34:57
64.227.90.153 attackspambots
Invalid user oracle from 64.227.90.153 port 39224
2020-07-31 01:24:40
138.197.223.125 attack
Lines containing failures of 138.197.223.125
Jul 29 17:50:22 newdogma sshd[3905]: Did not receive identification string from 138.197.223.125 port 39092
Jul 29 17:50:31 newdogma sshd[3910]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.223.125  user=r.r
Jul 29 17:50:34 newdogma sshd[3910]: Failed password for r.r from 138.197.223.125 port 60978 ssh2
Jul 29 17:50:35 newdogma sshd[3910]: Received disconnect from 138.197.223.125 port 60978:11: Normal Shutdown, Thank you for playing [preauth]
Jul 29 17:50:35 newdogma sshd[3910]: Disconnected from authenticating user r.r 138.197.223.125 port 60978 [preauth]
Jul 29 17:50:42 newdogma sshd[3914]: Invalid user oracle from 138.197.223.125 port 51076
Jul 29 17:50:42 newdogma sshd[3914]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=138.197.223.125 
Jul 29 17:50:44 newdogma sshd[3914]: Failed password for invalid user oracle from 138.197.223.1........
------------------------------
2020-07-31 01:18:54
181.170.47.8 attackspam
Jul 29 23:51:23 xxxxxxx sshd[28141]: Invalid user nisuser1 from 181.170.47.8 port 40090
Jul 29 23:51:23 xxxxxxx sshd[28141]: Failed password for invalid user nisuser1 from 181.170.47.8 port 40090 ssh2
Jul 29 23:51:23 xxxxxxx sshd[28141]: Received disconnect from 181.170.47.8 port 40090:11: Bye Bye [preauth]
Jul 29 23:51:23 xxxxxxx sshd[28141]: Disconnected from 181.170.47.8 port 40090 [preauth]
Jul 30 00:07:27 xxxxxxx sshd[19054]: Invalid user ghostnamelab-runner from 181.170.47.8 port 39802
Jul 30 00:07:27 xxxxxxx sshd[19054]: Failed password for invalid user ghostnamelab-runner from 181.170.47.8 port 39802 ssh2
Jul 30 00:07:27 xxxxxxx sshd[19054]: Received disconnect from 181.170.47.8 port 39802:11: Bye Bye [preauth]
Jul 30 00:07:27 xxxxxxx sshd[19054]: Disconnected from 181.170.47.8 port 39802 [preauth]
Jul 30 00:09:51 xxxxxxx sshd[22579]: Invalid user kuriyama from 181.170.47.8 port 40760
Jul 30 00:09:51 xxxxxxx sshd[22579]: Failed password for invalid user kuriyama........
-------------------------------
2020-07-31 01:29:14
121.36.22.176 attack
Icarus honeypot on github
2020-07-31 01:27:37
210.206.92.137 attackspambots
Jul 30 16:16:40 *** sshd[1788]: Invalid user shuosen from 210.206.92.137
2020-07-31 01:28:58
158.79.1.11 attackbotsspam
ICMP MH Probe, Scan /Distributed -
2020-07-31 01:36:15
123.56.26.222 attack
123.56.26.222 - - [30/Jul/2020:19:26:33 +0200] "POST /xmlrpc.php HTTP/1.1" 403 16466 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
123.56.26.222 - - [30/Jul/2020:19:29:34 +0200] "POST /xmlrpc.php HTTP/1.1" 403 31 "-" "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:62.0) Gecko/20100101 Firefox/62.0"
...
2020-07-31 01:42:42
61.189.43.58 attackbots
Jul 30 18:11:59 sxvn sshd[266053]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=61.189.43.58
2020-07-31 01:45:19
82.82.254.212 attackbotsspam
Jul 30 00:34:35 online-web-1 sshd[927882]: Invalid user wenbo from 82.82.254.212 port 34498
Jul 30 00:34:35 online-web-1 sshd[927882]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.82.254.212
Jul 30 00:34:37 online-web-1 sshd[927882]: Failed password for invalid user wenbo from 82.82.254.212 port 34498 ssh2
Jul 30 00:34:37 online-web-1 sshd[927882]: Received disconnect from 82.82.254.212 port 34498:11: Bye Bye [preauth]
Jul 30 00:34:37 online-web-1 sshd[927882]: Disconnected from 82.82.254.212 port 34498 [preauth]
Jul 30 01:00:30 online-web-1 sshd[930155]: Invalid user fzq from 82.82.254.212 port 56226
Jul 30 01:00:30 online-web-1 sshd[930155]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=82.82.254.212
Jul 30 01:00:32 online-web-1 sshd[930155]: Failed password for invalid user fzq from 82.82.254.212 port 56226 ssh2
Jul 30 01:00:32 online-web-1 sshd[930155]: Received disconnect from 8........
-------------------------------
2020-07-31 01:31:10
159.122.123.11 attackbots
ICMP MH Probe, Scan /Distributed -
2020-07-31 01:33:10
112.80.35.2 attackspambots
Jul 30 15:43:13 plex-server sshd[2628646]: Invalid user rongzhengqin from 112.80.35.2 port 65534
Jul 30 15:43:13 plex-server sshd[2628646]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=112.80.35.2 
Jul 30 15:43:13 plex-server sshd[2628646]: Invalid user rongzhengqin from 112.80.35.2 port 65534
Jul 30 15:43:15 plex-server sshd[2628646]: Failed password for invalid user rongzhengqin from 112.80.35.2 port 65534 ssh2
Jul 30 15:47:14 plex-server sshd[2630956]: Invalid user siyamalan from 112.80.35.2 port 65534
...
2020-07-31 01:23:19
37.224.61.146 attack
Unauthorised access (Jul 30) SRC=37.224.61.146 LEN=52 TTL=117 ID=16519 DF TCP DPT=445 WINDOW=8192 SYN
2020-07-31 01:18:22
192.35.169.92 attack
MultiHost/MultiPort Probe, Scan, Hack -
2020-07-31 01:44:12

Recently Reported IPs

104.21.72.137 104.21.72.142 104.21.72.139 104.21.72.14
104.21.72.140 104.21.72.143 104.21.72.145 104.21.72.147
104.21.72.146 104.21.72.148 104.21.72.154 104.21.72.151
104.21.72.153 104.21.72.150 104.21.72.157 104.21.72.152
104.21.72.159 104.21.72.16 104.21.72.156 140.122.23.24