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 <<>> 104.21.54.5
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 51871
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.54.5.			IN	A

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

;; Query time: 58 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Fri Feb 18 02:36:57 CST 2022
;; MSG SIZE  rcvd: 104
Host info
Host 5.54.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 5.54.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
45.7.255.134 attackbotsspam
(sshd) Failed SSH login from 45.7.255.134 (AR/Argentina/-): 3 in the last 3600 secs; Ports: *; Direction: inout; Trigger: LF_SSHD; Logs: Oct  3 16:39:46 internal2 sshd[26468]: Did not receive identification string from 45.7.255.134 port 51524
Oct  3 16:39:46 internal2 sshd[26469]: Did not receive identification string from 45.7.255.134 port 51528
Oct  3 16:39:46 internal2 sshd[26470]: Did not receive identification string from 45.7.255.134 port 51565
2020-10-05 07:04:43
114.33.102.200 attack
 TCP (SYN) 114.33.102.200:38822 -> port 23, len 44
2020-10-05 06:50:51
176.215.78.143 attack
 TCP (SYN) 176.215.78.143:59148 -> port 23, len 44
2020-10-05 06:47:21
42.240.129.58 attackspam
 TCP (SYN) 42.240.129.58:58914 -> port 8333, len 44
2020-10-05 06:51:13
113.116.237.106 attack
SCAN: Host Sweep CloudCIX Reconnaissance Scan Detected, PTR: PTR record not found
2020-10-05 07:14:34
37.205.51.40 attackbots
Oct  4 23:50:58 xeon sshd[52055]: Failed password for root from 37.205.51.40 port 44180 ssh2
2020-10-05 07:12:01
60.220.185.61 attackbots
$f2bV_matches
2020-10-05 06:44:46
108.62.123.167 attackspam
\[2020-10-04 03:00:18\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-04T03:00:18.987+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="1000000000001",SessionID="0x7f0ffeabb5a8",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/108.62.123.167/5069",Challenge="322e55fd",ReceivedChallenge="322e55fd",ReceivedHash="56b594278f1da155d27d0d54d9298239"
\[2020-10-04 03:48:59\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-04T03:48:59.248+0200",Severity="Error",Service="SIP",EventVersion="2",AccountID="1000",SessionID="0x7f0ffea6efd8",LocalAddress="IPV4/UDP/204.8.216.89/5060",RemoteAddress="IPV4/UDP/108.62.123.167/6072",Challenge="29b7f2d2",ReceivedChallenge="29b7f2d2",ReceivedHash="388bcec59ee341cd8e21188b9e33a564"
\[2020-10-04 03:48:59\] SECURITY\[6939\] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-10-04T03:48:59.756+0200",Severity="Error",Service="SIP",EventVersi
...
2020-10-05 06:58:02
64.225.126.137 attackbots
SSH Invalid Login
2020-10-05 07:04:20
168.194.13.4 attackbots
$f2bV_matches
2020-10-05 07:05:57
103.130.109.20 attackspambots
$f2bV_matches
2020-10-05 07:06:26
124.156.50.118 attackbotsspam
Found on   CINS badguys     / proto=6  .  srcport=52981  .  dstport=22 SSH  .     (3997)
2020-10-05 06:58:34
89.248.167.192 attack
[N1.H1.VM1] Port Scanner Detected Blocked by UFW
2020-10-05 07:09:21
217.160.25.39 attack
Brute forcing email accounts
2020-10-05 07:01:17
144.91.123.140 attackbots
1433/tcp 445/tcp...
[2020-08-08/10-03]5pkt,2pt.(tcp)
2020-10-05 06:50:21

Recently Reported IPs

104.21.54.61 104.21.54.65 203.0.113.44 104.21.54.57
104.21.54.69 104.21.54.76 104.21.54.8 104.21.7.30
104.21.54.86 104.21.54.92 104.21.54.99 104.21.55.104
104.21.54.96 104.21.55.101 104.21.54.90 104.21.55.116
104.21.55.126 104.21.7.34 104.21.55.127 104.21.55.133