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 <<>> 104.21.72.91
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 39797
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.72.91.			IN	A

;; AUTHORITY SECTION:
.			195	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022021702 1800 900 604800 86400

;; Query time: 16 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 10:18:46 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 91.72.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 91.72.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
194.26.29.133 attackspam
SmallBizIT.US 5 packets to tcp(49299,49507,49658,49750,49861)
2020-08-27 02:29:54
46.161.27.150 attack
[N10.H2.VM2] Port Scanner Detected Blocked by UFW
2020-08-27 02:40:57
194.26.29.135 attackbotsspam
Port-scan: detected 204 distinct ports within a 24-hour window.
2020-08-27 02:29:26
68.168.211.249 attackspam
SmallBizIT.US 4 packets to tcp(3381,3393,7777,33898)
2020-08-27 02:09:08
94.102.51.95 attackspam
ET CINS Active Threat Intelligence Poor Reputation IP group 79 - port: 34348 proto: tcp cat: Misc Attackbytes: 60
2020-08-27 02:35:38
45.14.150.130 attackbots
Aug 26 17:40:09 l02a sshd[12069]: Invalid user dalila from 45.14.150.130
Aug 26 17:40:09 l02a sshd[12069]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=45.14.150.130 
Aug 26 17:40:09 l02a sshd[12069]: Invalid user dalila from 45.14.150.130
Aug 26 17:40:11 l02a sshd[12069]: Failed password for invalid user dalila from 45.14.150.130 port 38692 ssh2
2020-08-27 02:45:27
45.129.33.7 attackbots
 TCP (SYN) 45.129.33.7:51342 -> port 6777, len 44
2020-08-27 02:13:48
107.170.204.148 attack
 TCP (SYN) 107.170.204.148:50847 -> port 11338, len 44
2020-08-27 02:33:43
45.129.33.48 attack
ET DROP Dshield Block Listed Source group 1 - port: 12837 proto: tcp cat: Misc Attackbytes: 60
2020-08-27 02:26:27
45.129.33.24 attackspambots
 TCP (SYN) 45.129.33.24:49291 -> port 21910, len 44
2020-08-27 02:12:01
45.129.33.49 attack
ET DROP Dshield Block Listed Source group 1 - port: 13040 proto: tcp cat: Misc Attackbytes: 60
2020-08-27 02:10:59
94.23.160.207 attack
[N10.H2.VM2] Port Scanner Detected Blocked by UFW
2020-08-27 02:35:52
46.161.27.48 attackbots
SmallBizIT.US 4 packets to tcp(6666,7777,53389,55555)
2020-08-27 02:09:56
91.229.112.14 attack
ET CINS Active Threat Intelligence Poor Reputation IP group 75 - port: 14772 proto: tcp cat: Misc Attackbytes: 60
2020-08-27 02:37:30
91.229.112.17 attackspam
ET CINS Active Threat Intelligence Poor Reputation IP group 75 - port: 17500 proto: tcp cat: Misc Attackbytes: 60
2020-08-27 02:36:39

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