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: South Africa

Internet Service Provider: Afrihost (Pty) Ltd

Hostname: unknown

Organization: unknown

Usage Type: Data Center/Web Hosting/Transit

Comments:
Type Details Datetime
attackbots
Feb  4 17:13:49 grey postfix/smtpd\[15378\]: NOQUEUE: reject: RCPT from unknown\[165.255.241.164\]: 554 5.7.1 Service unavailable\; Client host \[165.255.241.164\] blocked using cbl.abuseat.org\; Blocked - see http://www.abuseat.org/lookup.cgi\?ip=165.255.241.164\; from=\ to=\ proto=ESMTP helo=\<165-255-241-164.ip.adsl.co.za\>
...
2020-02-05 02:46:23
Comments on same subnet:
IP Type Details Datetime
165.255.241.15 attack
2019-10-21 x@x
2019-10-21 10:34:20 unexpected disconnection while reading SMTP command from (165-255-241-15.ip.adsl.co.za) [165.255.241.15]:44311 I=[10.100.18.23]:25 (error: Connection reset by peer)
2019-10-21 x@x


........
-----------------------------------------------
https://www.blocklist.de/en/view.html?ip=165.255.241.15
2019-10-23 01:31:10
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 165.255.241.164
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 36788
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			585	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2020020401 1800 900 604800 86400

;; Query time: 118 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Wed Feb 05 02:46:19 CST 2020
;; MSG SIZE  rcvd: 119
Host info
164.241.255.165.in-addr.arpa domain name pointer 165-255-241-164.ip.adsl.co.za.
Nslookup info:
Server:		183.60.83.19
Address:	183.60.83.19#53

Non-authoritative answer:
164.241.255.165.in-addr.arpa	name = 165-255-241-164.ip.adsl.co.za.

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