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 of America

Internet Service Provider: Telastic

Hostname: unknown

Organization: unknown

Usage Type: Data Center/Web Hosting/Transit

Comments:
Type Details Datetime
attackspambots
Unauthorized connection attempt detected from IP address 66.42.21.51 to port 23
2020-05-12 23:06:59
Comments on same subnet:
IP Type Details Datetime
66.42.21.47 attackbots
Unauthorized connection attempt detected from IP address 66.42.21.47 to port 23
2020-06-13 06:00:44
66.42.21.59 attackbots
Unauthorized connection attempt detected from IP address 66.42.21.59 to port 23
2020-05-30 03:07:43
66.42.21.92 attack
Unauthorized connection attempt detected from IP address 66.42.21.92 to port 23
2020-05-13 04:17:03
66.42.21.158 attackspambots
Unauthorized connection attempt detected from IP address 66.42.21.158 to port 23
2020-05-13 03:00:38
66.42.21.59 attackspam
Unauthorized connection attempt detected from IP address 66.42.21.59 to port 23
2020-05-13 01:44:20
66.42.21.170 attackbots
Unauthorized connection attempt detected from IP address 66.42.21.170 to port 23
2020-04-13 04:39:04
66.42.21.158 attack
Unauthorized connection attempt detected from IP address 66.42.21.158 to port 23
2020-04-13 02:46:16
66.42.21.246 attackspam
Unauthorized connection attempt detected from IP address 66.42.21.246 to port 23
2019-12-30 02:26:03
Whois info:
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Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 66.42.21.51
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 37811
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;66.42.21.51.			IN	A

;; AUTHORITY SECTION:
.			309	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020051200 1800 900 604800 86400

;; Query time: 344 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Tue May 12 23:06:53 CST 2020
;; MSG SIZE  rcvd: 115
Host info
Host 51.21.42.66.in-addr.arpa not found: 2(SERVFAIL)
Nslookup info:
;; Got SERVFAIL reply from 100.100.2.136, trying next server
;; Got SERVFAIL reply from 100.100.2.138, trying next server
Server:		100.100.2.136
Address:	100.100.2.136#53

** server can't find 51.21.42.66.in-addr.arpa: SERVFAIL

Related IP info:
Related comments:
IP Type Details Datetime
124.235.118.14 attackspambots
Unauthorized connection attempt detected from IP address 124.235.118.14 to port 8080 [J]
2020-01-15 23:16:28
182.241.192.51 attack
Unauthorized connection attempt detected from IP address 182.241.192.51 to port 5555 [T]
2020-01-15 23:11:35
116.26.173.210 attackspam
Automatic report - Port Scan Attack
2020-01-15 23:24:29
222.173.46.74 attackbotsspam
Unauthorized connection attempt detected from IP address 222.173.46.74 to port 445 [T]
2020-01-15 23:43:38
42.117.157.132 attackbots
Unauthorized connection attempt detected from IP address 42.117.157.132 to port 23 [J]
2020-01-15 23:01:33
121.57.106.14 attackbots
Unauthorized connection attempt detected from IP address 121.57.106.14 to port 5555 [T]
2020-01-15 23:19:17
1.2.174.78 attack
88/tcp
[2020-01-15]1pkt
2020-01-15 23:05:18
14.160.24.32 attackbots
Unauthorized connection attempt detected from IP address 14.160.24.32 to port 2220 [J]
2020-01-15 23:39:27
122.192.93.214 attackbots
Unauthorized connection attempt detected from IP address 122.192.93.214 to port 23 [T]
2020-01-15 23:18:53
124.94.218.191 attackbotsspam
Unauthorized connection attempt detected from IP address 124.94.218.191 to port 23 [J]
2020-01-15 23:17:19
222.72.149.154 attack
Unauthorized connection attempt detected from IP address 222.72.149.154 to port 445 [T]
2020-01-15 23:07:05
58.87.104.18 attackbotsspam
Unauthorized connection attempt detected from IP address 58.87.104.18 to port 6380 [J]
2020-01-15 23:33:36
1.54.169.214 attackspambots
Unauthorized connection attempt detected from IP address 1.54.169.214 to port 23 [J]
2020-01-15 23:40:50
69.162.126.238 attack
MultiHost/MultiPort Probe, Scan, Hack -
2020-01-15 23:30:31
51.158.25.170 attack
Firewall block UDP port 5082
2020-01-15 23:29:28

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