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: unknown

Internet Service Provider: unknown

Hostname: unknown

Organization: unknown

Usage Type: unknown

Comments:
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Comments on same subnet:
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Whois info:
b
Dig info:
b'
; <<>> DiG 9.11.3-1ubuntu1.15-Ubuntu <<>> 2001:3c8:2808:2::8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 21033
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;2001:3c8:2808:2::8.		IN	A

;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Fri Feb 18 23:45:16 CST 2022
;; MSG SIZE  rcvd: 47

'
Host info
b'8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.8.0.8.2.8.c.3.0.1.0.0.2.ip6.arpa domain name pointer www.npru.ac.th.
8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.8.0.8.2.8.c.3.0.1.0.0.2.ip6.arpa domain name pointer news.npru.ac.th.
'
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.8.0.8.2.8.c.3.0.1.0.0.2.ip6.arpa	name = www.npru.ac.th.
8.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.0.8.0.8.2.8.c.3.0.1.0.0.2.ip6.arpa	name = news.npru.ac.th.

Authoritative answers can be found from:
Related comments:
IP Type Details Datetime
37.187.75.16 attackspam 
37.187.75.16 - - [28/Jul/2020:00:01:34 +0100] "POST /wp-login.php HTTP/1.1" 200 5792 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36"
37.187.75.16 - - [28/Jul/2020:00:03:37 +0100] "POST /wp-login.php HTTP/1.1" 200 5792 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36"
37.187.75.16 - - [28/Jul/2020:00:05:39 +0100] "POST /wp-login.php HTTP/1.1" 200 5792 "-" "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36"
...
 2020-07-28 07:15:02
49.234.207.226 attackbotsspam 
2020-07-27T23:28:00.362842lavrinenko.info sshd[18036]: Invalid user eisp from 49.234.207.226 port 38608
2020-07-27T23:28:00.371621lavrinenko.info sshd[18036]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=49.234.207.226
2020-07-27T23:28:00.362842lavrinenko.info sshd[18036]: Invalid user eisp from 49.234.207.226 port 38608
2020-07-27T23:28:02.757494lavrinenko.info sshd[18036]: Failed password for invalid user eisp from 49.234.207.226 port 38608 ssh2
2020-07-27T23:31:16.069259lavrinenko.info sshd[18242]: Invalid user zhoubao from 49.234.207.226 port 33368
...
 2020-07-28 07:03:12
128.199.143.19 attackbots 
2020-07-28T00:00:39.896417ks3355764 sshd[21693]: Invalid user 2 from 128.199.143.19 port 45480
2020-07-28T00:00:41.785575ks3355764 sshd[21693]: Failed password for invalid user 2 from 128.199.143.19 port 45480 ssh2
...
 2020-07-28 06:47:22
138.197.213.134 attackbotsspam 
Invalid user michelle from 138.197.213.134 port 40298
 2020-07-28 07:09:36
129.28.61.66 attack 
C1,WP GET /wp-login.php
 2020-07-28 06:59:03
221.207.8.251 attackbots 
...
 2020-07-28 07:00:20
35.196.8.137 attack 
Invalid user yangchaofu from 35.196.8.137 port 53186
 2020-07-28 07:11:09
132.232.61.196 attackbots 
WordPress brute force
 2020-07-28 07:10:50
144.172.91.208 attack 
Jul 27 23:16:58 mxgate1 postfix/postscreen[15702]: CONNECT from [144.172.91.208]:35956 to [176.31.12.44]:25
Jul 27 23:16:58 mxgate1 postfix/dnsblog[15704]: addr 144.172.91.208 listed by domain zen.spamhaus.org as 127.0.0.3
Jul 27 23:16:58 mxgate1 postfix/dnsblog[15707]: addr 144.172.91.208 listed by domain bl.spamcop.net as 127.0.0.2
Jul 27 23:17:04 mxgate1 postfix/postscreen[15702]: DNSBL rank 3 for [144.172.91.208]:35956
Jul x@x
Jul 27 23:17:05 mxgate1 postfix/postscreen[15702]: DISCONNECT [144.172.91.208]:35956


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=144.172.91.208
 2020-07-28 06:53:20
212.47.237.75 attackbotsspam 
2020-07-28T03:28:11.029775billing sshd[14770]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=212.47.237.75
2020-07-28T03:28:11.014009billing sshd[14770]: Invalid user liwenxuan from 212.47.237.75 port 36250
2020-07-28T03:28:12.727928billing sshd[14770]: Failed password for invalid user liwenxuan from 212.47.237.75 port 36250 ssh2
...
 2020-07-28 07:11:49
182.74.25.246 attackbotsspam 
Invalid user any from 182.74.25.246 port 15099
 2020-07-28 07:00:44
45.155.125.160 attackbotsspam 
TCP src-port=33533   dst-port=25   Listed on   dnsbl-sorbs spamcop zen-spamhaus         (106)
 2020-07-28 07:09:06
147.135.223.228 attack 
[2020-07-27 18:39:27] NOTICE[1248] chan_sip.c: Registration from '' failed for '147.135.223.228:65245' - Wrong password
[2020-07-27 18:39:27] SECURITY[1275] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-27T18:39:27.926-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="86017",SessionID="0x7f2720031c98",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP/147.135.223.228/65245",Challenge="6b271831",ReceivedChallenge="6b271831",ReceivedHash="f8cc53ea6c0b8aa3d362bc0dee2f15f5"
[2020-07-27 18:39:55] NOTICE[1248] chan_sip.c: Registration from '' failed for '147.135.223.228:55480' - Wrong password
[2020-07-27 18:39:55] SECURITY[1275] res_security_log.c: SecurityEvent="InvalidPassword",EventTV="2020-07-27T18:39:55.739-0400",Severity="Error",Service="SIP",EventVersion="2",AccountID="5510100",SessionID="0x7f27200510e8",LocalAddress="IPV4/UDP/192.168.244.6/5060",RemoteAddress="IPV4/UDP
...
 2020-07-28 06:52:49
60.167.177.107 attack 
Invalid user yang from 60.167.177.107 port 45228
 2020-07-28 07:07:43
134.209.250.37 attackbotsspam 
Jul 28 00:50:44 sso sshd[17946]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=134.209.250.37
Jul 28 00:50:46 sso sshd[17946]: Failed password for invalid user liuyufei from 134.209.250.37 port 38784 ssh2
...
 2020-07-28 07:06:58

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