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: Arlington Heights

Region: Illinois

Country: United States

Internet Service Provider: AT&T

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 <<>> 104.50.21.208
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 54460
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.50.21.208.			IN	A

;; AUTHORITY SECTION:
.			30	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2025070800 1800 900 604800 86400

;; Query time: 11 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue Jul 08 23:43:54 CST 2025
;; MSG SIZE  rcvd: 106
Host info
208.21.50.104.in-addr.arpa domain name pointer 104-50-21-208.lightspeed.cicril.sbcglobal.net.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
208.21.50.104.in-addr.arpa	name = 104-50-21-208.lightspeed.cicril.sbcglobal.net.

Authoritative answers can be found from:
Related IP info:
Related comments:
IP Type Details Datetime
218.255.86.106 attackbots
Aug  4 20:56:13 sso sshd[8888]: Failed password for root from 218.255.86.106 port 43724 ssh2
...
2020-08-05 07:27:47
203.3.84.204 attackbotsspam
Aug  1 23:39:08 prox sshd[15943]: Failed password for root from 203.3.84.204 port 36131 ssh2
2020-08-05 07:58:39
179.212.136.198 attackbotsspam
Jul 30 21:28:44 prox sshd[14475]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=179.212.136.198 
Jul 30 21:28:46 prox sshd[14475]: Failed password for invalid user tristos from 179.212.136.198 port 32889 ssh2
2020-08-05 07:53:28
192.99.247.102 attack
Aug  4 16:41:26 propaganda sshd[80880]: Connection from 192.99.247.102 port 41892 on 10.0.0.160 port 22 rdomain ""
Aug  4 16:41:26 propaganda sshd[80880]: Connection closed by 192.99.247.102 port 41892 [preauth]
2020-08-05 07:41:51
187.150.168.221 attackspambots
Automatic report - Port Scan Attack
2020-08-05 07:44:45
158.69.63.54 attackbots
Aug  4 19:53:42 rancher-0 sshd[779535]: Invalid user admin from 158.69.63.54 port 57072
Aug  4 19:53:44 rancher-0 sshd[779535]: Failed password for invalid user admin from 158.69.63.54 port 57072 ssh2
...
2020-08-05 07:59:33
193.27.229.15 attackspam
3389BruteforceStormFW22
2020-08-05 07:58:27
49.233.177.197 attackspambots
2020-08-04T18:18:59.9354711495-001 sshd[51154]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.177.197  user=root
2020-08-04T18:19:02.2064341495-001 sshd[51154]: Failed password for root from 49.233.177.197 port 53642 ssh2
2020-08-04T18:24:59.0629761495-001 sshd[51443]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.177.197  user=root
2020-08-04T18:25:01.4237731495-001 sshd[51443]: Failed password for root from 49.233.177.197 port 60730 ssh2
2020-08-04T18:30:52.1531811495-001 sshd[51743]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.233.177.197  user=root
2020-08-04T18:30:53.9720611495-001 sshd[51743]: Failed password for root from 49.233.177.197 port 39588 ssh2
...
2020-08-05 07:24:01
123.207.78.83 attackspam
Aug  4 21:55:29 lukav-desktop sshd\[11309\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.207.78.83  user=root
Aug  4 21:55:31 lukav-desktop sshd\[11309\]: Failed password for root from 123.207.78.83 port 44668 ssh2
Aug  4 22:00:06 lukav-desktop sshd\[11361\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.207.78.83  user=root
Aug  4 22:00:08 lukav-desktop sshd\[11361\]: Failed password for root from 123.207.78.83 port 38590 ssh2
Aug  4 22:04:57 lukav-desktop sshd\[11417\]: pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=123.207.78.83  user=root
2020-08-05 07:57:06
62.173.138.147 attack
[2020-08-04 19:12:02] NOTICE[1248][C-00003e33] chan_sip.c: Call from '' (62.173.138.147:58075) to extension '17011*48122518017' rejected because extension not found in context 'public'.
[2020-08-04 19:12:02] SECURITY[1275] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-08-04T19:12:02.582-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="17011*48122518017",SessionID="0x7f272012c148",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/62.173.138.147/58075",ACLName="no_extension_match"
[2020-08-04 19:12:30] NOTICE[1248][C-00003e34] chan_sip.c: Call from '' (62.173.138.147:64455) to extension '170011*48122518017' rejected because extension not found in context 'public'.
[2020-08-04 19:12:30] SECURITY[1275] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-08-04T19:12:30.591-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="170011*48122518017",SessionID="0x7f27200a09d8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddre
...
2020-08-05 07:23:44
115.43.110.59 attackspambots
Port probing on unauthorized port 85
2020-08-05 07:39:33
167.71.209.115 attackbots
Automatic report - XMLRPC Attack
2020-08-05 08:01:44
182.61.49.107 attackbots
invalid user zhouyixuan from 182.61.49.107 port 54354 ssh2
2020-08-05 07:32:25
223.4.66.84 attackbotsspam
2020-08-04T23:34:51.977118abusebot-3.cloudsearch.cf sshd[9908]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.4.66.84  user=root
2020-08-04T23:34:53.825625abusebot-3.cloudsearch.cf sshd[9908]: Failed password for root from 223.4.66.84 port 44853 ssh2
2020-08-04T23:37:57.119211abusebot-3.cloudsearch.cf sshd[9951]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.4.66.84  user=root
2020-08-04T23:37:59.168454abusebot-3.cloudsearch.cf sshd[9951]: Failed password for root from 223.4.66.84 port 18386 ssh2
2020-08-04T23:40:53.102251abusebot-3.cloudsearch.cf sshd[10040]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=223.4.66.84  user=root
2020-08-04T23:40:54.980617abusebot-3.cloudsearch.cf sshd[10040]: Failed password for root from 223.4.66.84 port 58971 ssh2
2020-08-04T23:43:55.179055abusebot-3.cloudsearch.cf sshd[10074]: pam_unix(sshd:auth): authentication failur
...
2020-08-05 07:43:59
201.72.108.148 attackspam
Unauthorized connection attempt from IP address 201.72.108.148 on Port 445(SMB)
2020-08-05 07:40:52

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