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 <<>> 4.137.21.42
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12159
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;4.137.21.42.			IN	A

;; AUTHORITY SECTION:
.			600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2023050501 1800 900 604800 86400

;; Query time: 42 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Sat May 06 02:43:51 CST 2023
;; MSG SIZE  rcvd: 104
Host info
Host 42.21.137.4.in-addr.arpa. not found: 3(NXDOMAIN)
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

** server can't find 42.21.137.4.in-addr.arpa: NXDOMAIN
Related IP info:
Related comments:
IP Type Details Datetime
220.172.249.26 attackbotsspam
Portscan or hack attempt detected by psad/fwsnort
2020-02-03 17:32:09
77.123.155.201 attack
Unauthorized connection attempt detected from IP address 77.123.155.201 to port 2220 [J]
2020-02-03 17:45:58
42.123.99.102 attackbotsspam
Unauthorized connection attempt detected from IP address 42.123.99.102 to port 2220 [J]
2020-02-03 18:00:53
82.240.243.175 attackbotsspam
Unauthorized connection attempt detected from IP address 82.240.243.175 to port 2220 [J]
2020-02-03 17:42:26
80.82.65.90 attackbotsspam
Port 4411 scan denied
2020-02-03 17:36:22
182.30.142.96 attackbotsspam
LGS,WP GET /wp-login.php
2020-02-03 18:03:03
162.243.152.250 attackspam
Bad bot/spoofed identity
2020-02-03 17:53:00
113.21.115.221 attackbotsspam
$f2bV_matches
2020-02-03 17:30:37
177.53.241.131 attackspambots
Unauthorized connection attempt detected from IP address 177.53.241.131 to port 2220 [J]
2020-02-03 17:40:34
45.227.255.227 attackspam
Many_bad_calls
2020-02-03 17:36:40
117.211.161.171 attack
Unauthorized connection attempt detected from IP address 117.211.161.171 to port 22 [J]
2020-02-03 17:28:15
122.51.167.200 attack
Unauthorized connection attempt detected from IP address 122.51.167.200 to port 2220 [J]
2020-02-03 17:48:15
51.38.80.173 attackbotsspam
Invalid user slavento from 51.38.80.173 port 39430
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.80.173
Failed password for invalid user slavento from 51.38.80.173 port 39430 ssh2
Invalid user 1q2w3e4r from 51.38.80.173 port 36326
pam_unix\(sshd:auth\): authentication failure\; logname= uid=0 euid=0 tty=ssh ruser= rhost=51.38.80.173
2020-02-03 17:26:12
109.100.129.86 attackspam
Unauthorized connection attempt detected from IP address 109.100.129.86 to port 8080 [J]
2020-02-03 17:32:36
51.15.222.202 attackspam
Port 445 (MS DS) access denied
2020-02-03 17:40:08

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