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: Brazil

Internet Service Provider: Netway Informatica Ltda

Hostname: unknown

Organization: unknown

Usage Type: Fixed Line ISP

Comments:
Type Details Datetime
attackbots
Jul  1 07:14:50 our-server-hostname postfix/smtpd[2217]: connect from unknown[131.108.166.12]
Jul x@x
Jul  1 07:14:55 our-server-hostname postfix/smtpd[2217]: NOQUEUE: reject: RCPT from unknown[131.108.166.12]: 554 5.7.1 Service unavailable; Client host [131.108.166.12] blocked using zen.spamhaus.org; hxxps://www.spamhaus.org/query/ip/131.108.166.12 / hxxps://www.spamhaus.org/sbl/query/SBLCSS; from=x@x proto=ESM
.... truncated .... 
Nelsonyzie@netwaytelecon.com.br> to= proto=ESMTP helo=<131-108-166-12.host.netwaytelecon.com.br>
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul x@x
Jul  1 07:29:15 our-server-hostname postfix/smtpd[6932]: too many errors after RCPT from unknown[131.108.166.12]
Jul  1 07:29:15 our-server-hostname postfix/smtpd[6932]: disconnect from unknown[131.108.166.12]
Jul x........
-------------------------------
2019-07-01 18:35:47
Comments on same subnet:
IP Type Details Datetime
131.108.166.146 attackbots
Invalid user steven from 131.108.166.146 port 38186
2020-05-11 07:19:31
Whois info:
b
Dig info:
; <<>> DiG 9.10.3-P4-Ubuntu <<>> 131.108.166.12
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 60228
;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

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

;; AUTHORITY SECTION:
.			3600	IN	SOA	a.root-servers.net. nstld.verisign-grs.com. 2019063001 1800 900 604800 86400

;; Query time: 2 msec
;; SERVER: 67.207.67.2#53(67.207.67.2)
;; WHEN: Mon Jul 01 18:35:34 CST 2019
;; MSG SIZE  rcvd: 118
Host info
12.166.108.131.in-addr.arpa domain name pointer 131-108-166-12.host.netwaytelecon.com.br.
Nslookup info:
Server:		67.207.67.2
Address:	67.207.67.2#53

Non-authoritative answer:
12.166.108.131.in-addr.arpa	name = 131-108-166-12.host.netwaytelecon.com.br.

Authoritative answers can be found from:
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