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: None

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 <<>> 104.21.57.55
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 978
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;104.21.57.55.			IN	A

;; AUTHORITY SECTION:
.			177	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2022022000 1800 900 604800 86400

;; Query time: 17 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sun Feb 20 19:35:00 CST 2022
;; MSG SIZE  rcvd: 105
Host info
Host 55.57.21.104.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 55.57.21.104.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
191.53.197.64 attackbotsspam
SMTP-sasl brute force
...
2019-07-08 15:08:58
191.53.237.233 attackbotsspam
Brute force attack stopped by firewall
2019-07-08 15:32:43
191.53.222.196 attackbotsspam
Brute force attack stopped by firewall
2019-07-08 15:12:57
177.38.5.46 attackbots
Brute force attack stopped by firewall
2019-07-08 15:16:24
191.53.248.142 attackbots
Brute force attack stopped by firewall
2019-07-08 15:31:41
191.53.198.30 attackspambots
Brute force attack stopped by firewall
2019-07-08 15:44:19
189.91.7.1 attackbots
Brute force attack stopped by firewall
2019-07-08 15:38:22
177.154.234.44 attack
Brute force attack stopped by firewall
2019-07-08 15:30:20
191.53.250.250 attackspambots
Brute force attack stopped by firewall
2019-07-08 15:41:54
187.120.128.94 attackspam
Brute force attack stopped by firewall
2019-07-08 15:36:10
167.250.97.176 attackbots
Brute force attack stopped by firewall
2019-07-08 15:37:52
86.57.232.53 attack
@LucianNitescu Personal Honeypot Network <<<>>> Donate at paypal.me/LNitescu <<<>>> 2019-07-07 22:08:11,799 INFO [shellcode_manager] (86.57.232.53) no match, writing hexdump (f2833217346e34f09d10f3545d22ac5b :2325764) - MS17010 (EternalBlue)
2019-07-08 15:50:24
191.53.197.159 attack
Brute force attack stopped by firewall
2019-07-08 15:08:34
177.23.62.191 attackbotsspam
Brute force attack stopped by firewall
2019-07-08 15:21:26
141.98.10.52 attackbotsspam
2019-07-08T08:02:20.900899ns1.unifynetsol.net postfix/smtpd\[19513\]: warning: unknown\[141.98.10.52\]: SASL LOGIN authentication failed: authentication failure
2019-07-08T09:16:05.047462ns1.unifynetsol.net postfix/smtpd\[1671\]: warning: unknown\[141.98.10.52\]: SASL LOGIN authentication failed: authentication failure
2019-07-08T10:28:44.906879ns1.unifynetsol.net postfix/smtpd\[11265\]: warning: unknown\[141.98.10.52\]: SASL LOGIN authentication failed: authentication failure
2019-07-08T11:42:16.841617ns1.unifynetsol.net postfix/smtpd\[22323\]: warning: unknown\[141.98.10.52\]: SASL LOGIN authentication failed: authentication failure
2019-07-08T12:56:08.966593ns1.unifynetsol.net postfix/smtpd\[29164\]: warning: unknown\[141.98.10.52\]: SASL LOGIN authentication failed: authentication failure
2019-07-08 15:57:14

Recently Reported IPs

104.21.57.56 104.21.57.35 104.21.57.65 104.21.57.72
104.21.57.38 104.18.31.144 104.21.57.229 104.21.57.76
104.21.57.90 104.21.58.163 104.21.58.186 104.21.58.135
104.21.58.144 171.157.233.132 104.21.58.138 104.21.58.106
104.18.31.148 104.21.58.21 104.21.58.100 104.21.58.154