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 <<>> 104.91.21.172
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 14005
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;104.91.21.172.			IN	A

;; AUTHORITY SECTION:
.			467	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020062100 1800 900 604800 86400

;; Query time: 107 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Jun 21 16:32:37 CST 2020
;; MSG SIZE  rcvd: 117
Host info
172.21.91.104.in-addr.arpa domain name pointer a104-91-21-172.deploy.static.akamaitechnologies.com.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
172.21.91.104.in-addr.arpa	name = a104-91-21-172.deploy.static.akamaitechnologies.com.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
1.179.184.149 attack
Unauthorized connection attempt from IP address 1.179.184.149 on Port 445(SMB)
2020-01-08 20:10:11
186.103.223.10 attackbotsspam
(sshd) Failed SSH login from 186.103.223.10 (CL/Chile/186-103-223-10.static.tie.cl): 5 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Jan  8 05:01:28 svr sshd[3673410]: Invalid user archiva from 186.103.223.10 port 44428
Jan  8 05:01:31 svr sshd[3673410]: Failed password for invalid user archiva from 186.103.223.10 port 44428 ssh2
Jan  8 05:14:37 svr sshd[3716739]: Invalid user odroid from 186.103.223.10 port 53593
Jan  8 05:14:39 svr sshd[3716739]: Failed password for invalid user odroid from 186.103.223.10 port 53593 ssh2
Jan  8 05:18:22 svr sshd[3728766]: Invalid user hzk from 186.103.223.10 port 40576
2020-01-08 20:05:07
14.177.176.175 attack
Unauthorized connection attempt from IP address 14.177.176.175 on Port 445(SMB)
2020-01-08 20:36:00
180.232.21.227 attack
Unauthorized connection attempt from IP address 180.232.21.227 on Port 445(SMB)
2020-01-08 20:05:27
193.105.134.95 attackbots
[portscan] udp/1900 [ssdp]
*(RWIN=-)(01081307)
2020-01-08 20:21:57
222.186.175.151 attackbots
Jan  8 13:00:34 tuxlinux sshd[16977]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=222.186.175.151  user=root
...
2020-01-08 20:05:59
183.166.137.93 attack
2020-01-07 22:45:16 dovecot_login authenticator failed for (azkyt) [183.166.137.93]:53020 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=zhangchao@lerctr.org)
2020-01-07 22:45:23 dovecot_login authenticator failed for (hghto) [183.166.137.93]:53020 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=zhangchao@lerctr.org)
2020-01-07 22:45:34 dovecot_login authenticator failed for (hjxpu) [183.166.137.93]:53020 I=[192.147.25.65]:25: 535 Incorrect authentication data (set_id=zhangchao@lerctr.org)
...
2020-01-08 20:23:18
129.204.210.40 attackbotsspam
Jan  8 01:43:16 firewall sshd[26171]: Invalid user heroin from 129.204.210.40
Jan  8 01:43:19 firewall sshd[26171]: Failed password for invalid user heroin from 129.204.210.40 port 48568 ssh2
Jan  8 01:45:19 firewall sshd[26224]: Invalid user guest from 129.204.210.40
...
2020-01-08 20:35:10
129.146.172.170 attackspam
Unauthorized connection attempt detected from IP address 129.146.172.170 to port 2220 [J]
2020-01-08 20:27:57
80.66.81.86 attackbots
2020-01-08 13:34:35 dovecot_login authenticator failed for \(\[80.66.81.86\]\) \[80.66.81.86\]: 535 Incorrect authentication data \(set_id=inarcassaonline@opso.it\)
2020-01-08 13:34:44 dovecot_login authenticator failed for \(\[80.66.81.86\]\) \[80.66.81.86\]: 535 Incorrect authentication data
2020-01-08 13:34:54 dovecot_login authenticator failed for \(\[80.66.81.86\]\) \[80.66.81.86\]: 535 Incorrect authentication data
2020-01-08 13:35:01 dovecot_login authenticator failed for \(\[80.66.81.86\]\) \[80.66.81.86\]: 535 Incorrect authentication data
2020-01-08 13:35:14 dovecot_login authenticator failed for \(\[80.66.81.86\]\) \[80.66.81.86\]: 535 Incorrect authentication data
2020-01-08 20:37:20
148.70.24.20 attack
$f2bV_matches
2020-01-08 20:30:26
14.247.233.237 attack
Scanning random ports - tries to find possible vulnerable services
2020-01-08 20:16:16
200.217.57.203 attack
Too many connections or unauthorized access detected from Arctic banned ip
2020-01-08 20:01:06
45.141.84.41 attack
3389BruteforceStormFW22
2020-01-08 20:32:39
119.123.184.85 attackbots
1578466084 - 01/08/2020 07:48:04 Host: 119.123.184.85/119.123.184.85 Port: 445 TCP Blocked
2020-01-08 20:00:23

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