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 <<>> 104.21.73.21
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 36956
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.73.21.			IN	A

;; AUTHORITY SECTION:
.			597	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 02:52:05 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 21.73.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 21.73.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
195.154.57.1 attackspam
[2020-03-27 18:21:20] NOTICE[1148][C-00017e2e] chan_sip.c: Call from '' (195.154.57.1:61374) to extension '10100972595690863' rejected because extension not found in context 'public'.
[2020-03-27 18:21:20] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-27T18:21:20.199-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="10100972595690863",SessionID="0x7fd82c40aa58",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/195.154.57.1/61374",ACLName="no_extension_match"
[2020-03-27 18:25:33] NOTICE[1148][C-00017e38] chan_sip.c: Call from '' (195.154.57.1:55427) to extension '01000972595690863' rejected because extension not found in context 'public'.
[2020-03-27 18:25:33] SECURITY[1163] res_security_log.c: SecurityEvent="FailedACL",EventTV="2020-03-27T18:25:33.504-0400",Severity="Error",Service="SIP",EventVersion="1",AccountID="01000972595690863",SessionID="0x7fd82c530768",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4
...
2020-03-28 06:53:07
112.3.30.90 attackbotsspam
SSH Invalid Login
2020-03-28 07:15:46
114.35.40.77 attack
port scan and connect, tcp 23 (telnet)
2020-03-28 06:51:24
45.32.102.64 attack
Invalid user postgres from 45.32.102.64 port 51032
2020-03-28 07:16:16
165.227.93.39 attack
Mar 28 00:01:17 host sshd[9200]: Invalid user alfresco from 165.227.93.39 port 44966
...
2020-03-28 07:20:07
185.173.35.5 attackspam
Mar 28 00:16:18 debian-2gb-nbg1-2 kernel: \[7610047.198008\] \[UFW BLOCK\] IN=eth0 OUT= MAC=96:00:00:0e:18:f4:d2:74:7f:6e:37:e3:08:00 SRC=185.173.35.5 DST=195.201.40.59 LEN=44 TOS=0x00 PREC=0x00 TTL=239 ID=54321 PROTO=TCP SPT=58647 DPT=22 WINDOW=65535 RES=0x00 SYN URGP=0
2020-03-28 07:21:20
89.36.210.156 attackspambots
Mar 27 23:21:08 vpn01 sshd[20852]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=89.36.210.156
Mar 27 23:21:10 vpn01 sshd[20852]: Failed password for invalid user ot from 89.36.210.156 port 60950 ssh2
...
2020-03-28 07:02:16
218.92.0.200 attack
Mar 27 23:32:41 silence02 sshd[5066]: Failed password for root from 218.92.0.200 port 58597 ssh2
Mar 27 23:34:10 silence02 sshd[5185]: Failed password for root from 218.92.0.200 port 63564 ssh2
Mar 27 23:34:12 silence02 sshd[5185]: Failed password for root from 218.92.0.200 port 63564 ssh2
2020-03-28 06:52:48
111.254.4.3 attackbotsspam
Mar 27 23:18:44 * sshd[29097]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=111.254.4.3
Mar 27 23:18:47 * sshd[29097]: Failed password for invalid user logadmin from 111.254.4.3 port 53942 ssh2
2020-03-28 07:03:15
106.12.185.84 attackbots
Invalid user tomo from 106.12.185.84 port 49320
2020-03-28 07:16:48
51.255.173.222 attackspambots
Invalid user elissa from 51.255.173.222 port 50182
2020-03-28 07:09:07
173.89.163.88 attack
SSH Invalid Login
2020-03-28 07:10:43
118.27.16.74 attack
SSH Invalid Login
2020-03-28 06:54:55
139.59.60.220 attackbots
Invalid user dq from 139.59.60.220 port 54764
2020-03-28 07:23:04
41.233.229.31 attackbots
Unauthorized connection attempt detected from IP address 41.233.229.31 to port 23
2020-03-28 07:14:13

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